From 742e7fb0f7cddb8517690e6ee9edb07ca006d437 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 8 Jun 2023 19:24:33 +0900 Subject: [PATCH 01/28] =?UTF-8?q?build:=20=ED=94=84=EB=A1=9C=EC=A0=9D?= =?UTF-8?q?=ED=8A=B8=20=EC=B4=88=EA=B8=B0=20=EB=B9=8C=EB=93=9C=20=ED=8C=8C?= =?UTF-8?q?=EC=9D=BC=20=EC=83=9D=EC=84=B1?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .gitattributes | 9 + .gitignore | 202 +++++++++++++++++++ app/build.gradle | 42 ++++ app/src/main/java/calculator/App.java | 7 + gradle/wrapper/gradle-wrapper.jar | Bin 0 -> 62076 bytes gradle/wrapper/gradle-wrapper.properties | 6 + gradlew | 245 +++++++++++++++++++++++ gradlew.bat | 92 +++++++++ settings.gradle | 16 ++ 9 files changed, 619 insertions(+) create mode 100644 .gitattributes create mode 100644 .gitignore create mode 100644 app/build.gradle create mode 100644 app/src/main/java/calculator/App.java create mode 100644 gradle/wrapper/gradle-wrapper.jar create mode 100644 gradle/wrapper/gradle-wrapper.properties create mode 100755 gradlew create mode 100644 gradlew.bat create mode 100644 settings.gradle diff --git a/.gitattributes b/.gitattributes new file mode 100644 index 000000000..097f9f98d --- /dev/null +++ b/.gitattributes @@ -0,0 +1,9 @@ +# +# https://help.github.com/articles/dealing-with-line-endings/ +# +# Linux start script should use lf +/gradlew text eol=lf + +# These are Windows script files and should use crlf +*.bat text eol=crlf + diff --git a/.gitignore b/.gitignore new file mode 100644 index 000000000..301fec184 --- /dev/null +++ b/.gitignore @@ -0,0 +1,202 @@ +### Intellij ### +# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider +# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839 +.idea + +# User-specific stuff +.idea/**/workspace.xml +.idea/**/tasks.xml +.idea/**/usage.statistics.xml +.idea/**/dictionaries +.idea/**/shelf + +# AWS User-specific +.idea/**/aws.xml + +# Generated files +.idea/**/contentModel.xml + +# Sensitive or high-churn files +.idea/**/dataSources/ +.idea/**/dataSources.ids +.idea/**/dataSources.local.xml +.idea/**/sqlDataSources.xml +.idea/**/dynamic.xml +.idea/**/uiDesigner.xml +.idea/**/dbnavigator.xml + +# Gradle +.idea/**/gradle.xml +.idea/**/libraries + +# Gradle and Maven with auto-import +# When using Gradle or Maven with auto-import, you should exclude module files, +# since they will be recreated, and may cause churn. Uncomment if using +# auto-import. +# .idea/artifacts +# .idea/compiler.xml +# .idea/jarRepositories.xml +# .idea/modules.xml +# .idea/*.iml +# .idea/modules +# *.iml +# *.ipr + +# CMake +cmake-build-*/ + +# Mongo Explorer plugin +.idea/**/mongoSettings.xml + +# File-based project format +*.iws + +# IntelliJ +out/ + +# mpeltonen/sbt-idea plugin +.idea_modules/ + +# JIRA plugin +atlassian-ide-plugin.xml + +# Cursive Clojure plugin +.idea/replstate.xml + +# SonarLint plugin +.idea/sonarlint/ + +# Crashlytics plugin (for Android Studio and IntelliJ) +com_crashlytics_export_strings.xml +crashlytics.properties +crashlytics-build.properties +fabric.properties + +# Editor-based Rest Client +.idea/httpRequests + +# Android studio 3.1+ serialized cache file +.idea/caches/build_file_checksums.ser + +### Intellij Patch ### +# Comment Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-215987721 + +# *.iml +# modules.xml +# .idea/misc.xml +# *.ipr + +# Sonarlint plugin +# https://plugins.jetbrains.com/plugin/7973-sonarlint +.idea/**/sonarlint/ + +# SonarQube Plugin +# https://plugins.jetbrains.com/plugin/7238-sonarqube-community-plugin +.idea/**/sonarIssues.xml + +# Markdown Navigator plugin +# https://plugins.jetbrains.com/plugin/7896-markdown-navigator-enhanced +.idea/**/markdown-navigator.xml +.idea/**/markdown-navigator-enh.xml +.idea/**/markdown-navigator/ + +# Cache file creation bug +# See https://youtrack.jetbrains.com/issue/JBR-2257 +.idea/$CACHE_FILE$ + +# CodeStream plugin +# https://plugins.jetbrains.com/plugin/12206-codestream +.idea/codestream.xml + +# Azure Toolkit for IntelliJ plugin +# https://plugins.jetbrains.com/plugin/8053-azure-toolkit-for-intellij +.idea/**/azureSettings.xml + +### Java ### +# Compiled class file +*.class + +# Log file +*.log + +# BlueJ files +*.ctxt + +# Mobile Tools for Java (J2ME) +.mtj.tmp/ + +# Package Files # +*.jar +*.war +*.nar +*.ear +*.zip +*.tar.gz +*.rar + +# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml +hs_err_pid* +replay_pid* + +### macOS ### +# General +.DS_Store +.AppleDouble +.LSOverride + +# Icon must end with two \r +Icon + + +# Thumbnails +._* + +# Files that might appear in the root of a volume +.DocumentRevisions-V100 +.fseventsd +.Spotlight-V100 +.TemporaryItems +.Trashes +.VolumeIcon.icns +.com.apple.timemachine.donotpresent + +# Directories potentially created on remote AFP share +.AppleDB +.AppleDesktop +Network Trash Folder +Temporary Items +.apdisk + +### macOS Patch ### +# iCloud generated files +*.icloud + +### Gradle ### +.gradle +**/build/ +!src/**/build/ + +# Ignore Gradle GUI config +gradle-app.setting + +# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored) +!gradle-wrapper.jar + +# Avoid ignore Gradle wrappper properties +!gradle-wrapper.properties + +# Cache of project +.gradletasknamecache + +# Eclipse Gradle plugin generated files +# Eclipse Core +.project +# JDT-specific (Eclipse Java Development Tools) +.classpath + +### Gradle Patch ### +# Java heap dump +*.hprof + +# Ignore Gradle build output directory +build diff --git a/app/build.gradle b/app/build.gradle new file mode 100644 index 000000000..2dc328e01 --- /dev/null +++ b/app/build.gradle @@ -0,0 +1,42 @@ +/* + * This file was generated by the Gradle 'init' task. + * + * This generated file contains a sample Java application project to get you started. + * For more details take a look at the 'Building Java & JVM projects' chapter in the Gradle + * User Manual available at https://docs.gradle.org/8.1.1/userguide/building_java_projects.html + */ + +plugins { + // Apply the application plugin to add support for building a CLI application in Java. + id 'application' +} + +repositories { + // Use Maven Central for resolving dependencies. + mavenCentral() +} + +dependencies { + // Use JUnit Jupiter for testing. + testImplementation 'org.junit.jupiter:junit-jupiter:5.9.1' + + // This dependency is used by the application. + implementation 'com.google.guava:guava:31.1-jre' +} + +// Apply a specific Java toolchain to ease working on different environments. +java { + toolchain { + languageVersion = JavaLanguageVersion.of(17) + } +} + +application { + // Define the main class for the application. + mainClass = 'calculator.App' +} + +tasks.named('test') { + // Use JUnit Platform for unit tests. + useJUnitPlatform() +} diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java new file mode 100644 index 000000000..251db76d0 --- /dev/null +++ b/app/src/main/java/calculator/App.java @@ -0,0 +1,7 @@ +package calculator; + +public class App { + + public static void main(String[] args) { + } +} diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar new file mode 100644 index 0000000000000000000000000000000000000000..c1962a79e29d3e0ab67b14947c167a862655af9b GIT binary patch literal 62076 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If your /bin/sh is +# noncompliant, but you have some other compliant shell such as ksh or +# bash, then to run this script, type that shell name before the whole +# command line, like: +# +# ksh Gradle +# +# Busybox and similar reduced shells will NOT work, because this script +# requires all of these POSIX shell features: +# * functions; +# * expansions «$var», «${var}», «${var:-default}», «${var+SET}», +# «${var#prefix}», «${var%suffix}», and «$( cmd )»; +# * compound commands having a testable exit status, especially «case»; +# * various built-in commands including «command», «set», and «ulimit». +# +# Important for patching: +# +# (2) This script targets any POSIX shell, so it avoids extensions provided +# by Bash, Ksh, etc; in particular arrays are avoided. +# +# The "traditional" practice of packing multiple parameters into a +# space-separated string is a well documented source of bugs and security +# problems, so this is (mostly) avoided, by progressively accumulating +# options in "$@", and eventually passing that to Java. +# +# Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS, +# and GRADLE_OPTS) rely on word-splitting, this is performed explicitly; +# see the in-line comments for details. +# +# There are tweaks for specific operating systems such as AIX, CygWin, +# Darwin, MinGW, and NonStop. +# +# (3) This script is generated from the Groovy template +# https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt +# within the Gradle project. +# +# You can find Gradle at https://github.com/gradle/gradle/. +# +############################################################################## + +# Attempt to set APP_HOME + +# Resolve links: $0 may be a link +app_path=$0 + +# Need this for daisy-chained symlinks. +while + APP_HOME=${app_path%"${app_path##*/}"} # leaves a trailing /; empty if no leading path + [ -h "$app_path" ] +do + ls=$( ls -ld "$app_path" ) + link=${ls#*' -> '} + case $link in #( + /*) app_path=$link ;; #( + *) app_path=$APP_HOME$link ;; + esac +done + +# This is normally unused +# shellcheck disable=SC2034 +APP_BASE_NAME=${0##*/} +APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit + +# Use the maximum available, or set MAX_FD != -1 to use that value. +MAX_FD=maximum + +warn () { + echo "$*" +} >&2 + +die () { + echo + echo "$*" + echo + exit 1 +} >&2 + +# OS specific support (must be 'true' or 'false'). +cygwin=false +msys=false +darwin=false +nonstop=false +case "$( uname )" in #( + CYGWIN* ) cygwin=true ;; #( + Darwin* ) darwin=true ;; #( + MSYS* | MINGW* ) msys=true ;; #( + NONSTOP* ) nonstop=true ;; +esac + +CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar + + +# Determine the Java command to use to start the JVM. +if [ -n "$JAVA_HOME" ] ; then + if [ -x "$JAVA_HOME/jre/sh/java" ] ; then + # IBM's JDK on AIX uses strange locations for the executables + JAVACMD=$JAVA_HOME/jre/sh/java + else + JAVACMD=$JAVA_HOME/bin/java + fi + if [ ! -x "$JAVACMD" ] ; then + die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." + fi +else + JAVACMD=java + which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. + +Please set the JAVA_HOME variable in your environment to match the +location of your Java installation." +fi + +# Increase the maximum file descriptors if we can. +if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then + case $MAX_FD in #( + max*) + # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC3045 + MAX_FD=$( ulimit -H -n ) || + warn "Could not query maximum file descriptor limit" + esac + case $MAX_FD in #( + '' | soft) :;; #( + *) + # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked. + # shellcheck disable=SC3045 + ulimit -n "$MAX_FD" || + warn "Could not set maximum file descriptor limit to $MAX_FD" + esac +fi + +# Collect all arguments for the java command, stacking in reverse order: +# * args from the command line +# * the main class name +# * -classpath +# * -D...appname settings +# * --module-path (only if needed) +# * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables. + +# For Cygwin or MSYS, switch paths to Windows format before running java +if "$cygwin" || "$msys" ; then + APP_HOME=$( cygpath --path --mixed "$APP_HOME" ) + CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" ) + + JAVACMD=$( cygpath --unix "$JAVACMD" ) + + # Now convert the arguments - kludge to limit ourselves to /bin/sh + for arg do + if + case $arg in #( + -*) false ;; # don't mess with options #( + /?*) t=${arg#/} t=/${t%%/*} # looks like a POSIX filepath + [ -e "$t" ] ;; #( + *) false ;; + esac + then + arg=$( cygpath --path --ignore --mixed "$arg" ) + fi + # Roll the args list around exactly as many times as the number of + # args, so each arg winds up back in the position where it started, but + # possibly modified. + # + # NB: a `for` loop captures its iteration list before it begins, so + # changing the positional parameters here affects neither the number of + # iterations, nor the values presented in `arg`. + shift # remove old arg + set -- "$@" "$arg" # push replacement arg + done +fi + + +# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"' + +# Collect all arguments for the java command; +# * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of +# shell script including quotes and variable substitutions, so put them in +# double quotes to make sure that they get re-expanded; and +# * put everything else in single quotes, so that it's not re-expanded. + +set -- \ + "-Dorg.gradle.appname=$APP_BASE_NAME" \ + -classpath "$CLASSPATH" \ + org.gradle.wrapper.GradleWrapperMain \ + "$@" + +# Stop when "xargs" is not available. +if ! command -v xargs >/dev/null 2>&1 +then + die "xargs is not available" +fi + +# Use "xargs" to parse quoted args. +# +# With -n1 it outputs one arg per line, with the quotes and backslashes removed. +# +# In Bash we could simply go: +# +# readarray ARGS < <( xargs -n1 <<<"$var" ) && +# set -- "${ARGS[@]}" "$@" +# +# but POSIX shell has neither arrays nor command substitution, so instead we +# post-process each arg (as a line of input to sed) to backslash-escape any +# character that might be a shell metacharacter, then use eval to reverse +# that process (while maintaining the separation between arguments), and wrap +# the whole thing up as a single "set" statement. +# +# This will of course break if any of these variables contains a newline or +# an unmatched quote. +# + +eval "set -- $( + printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" | + xargs -n1 | + sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' | + tr '\n' ' ' + )" '"$@"' + +exec "$JAVACMD" "$@" diff --git a/gradlew.bat b/gradlew.bat new file mode 100644 index 000000000..93e3f59f1 --- /dev/null +++ b/gradlew.bat @@ -0,0 +1,92 @@ +@rem +@rem Copyright 2015 the original author or authors. +@rem +@rem Licensed under the Apache License, Version 2.0 (the "License"); +@rem you may not use this file except in compliance with the License. +@rem You may obtain a copy of the License at +@rem +@rem https://www.apache.org/licenses/LICENSE-2.0 +@rem +@rem Unless required by applicable law or agreed to in writing, software +@rem distributed under the License is distributed on an "AS IS" BASIS, +@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +@rem See the License for the specific language governing permissions and +@rem limitations under the License. +@rem + +@if "%DEBUG%"=="" @echo off +@rem ########################################################################## +@rem +@rem Gradle startup script for Windows +@rem +@rem ########################################################################## + +@rem Set local scope for the variables with windows NT shell +if "%OS%"=="Windows_NT" setlocal + +set DIRNAME=%~dp0 +if "%DIRNAME%"=="" set DIRNAME=. +@rem This is normally unused +set APP_BASE_NAME=%~n0 +set APP_HOME=%DIRNAME% + +@rem Resolve any "." and ".." in APP_HOME to make it shorter. +for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi + +@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. +set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m" + +@rem Find java.exe +if defined JAVA_HOME goto findJavaFromJavaHome + +set JAVA_EXE=java.exe +%JAVA_EXE% -version >NUL 2>&1 +if %ERRORLEVEL% equ 0 goto execute + +echo. +echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:findJavaFromJavaHome +set JAVA_HOME=%JAVA_HOME:"=% +set JAVA_EXE=%JAVA_HOME%/bin/java.exe + +if exist "%JAVA_EXE%" goto execute + +echo. +echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% +echo. +echo Please set the JAVA_HOME variable in your environment to match the +echo location of your Java installation. + +goto fail + +:execute +@rem Setup the command line + +set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar + + +@rem Execute Gradle +"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %* + +:end +@rem End local scope for the variables with windows NT shell +if %ERRORLEVEL% equ 0 goto mainEnd + +:fail +rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of +rem the _cmd.exe /c_ return code! +set EXIT_CODE=%ERRORLEVEL% +if %EXIT_CODE% equ 0 set EXIT_CODE=1 +if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE% +exit /b %EXIT_CODE% + +:mainEnd +if "%OS%"=="Windows_NT" endlocal + +:omega diff --git a/settings.gradle b/settings.gradle new file mode 100644 index 000000000..24a4aa2a0 --- /dev/null +++ b/settings.gradle @@ -0,0 +1,16 @@ +/* + * This file was generated by the Gradle 'init' task. + * + * The settings file is used to specify which projects to include in your build. + * + * Detailed information about configuring a multi-project build in Gradle can be found + * in the user manual at https://docs.gradle.org/8.1.1/userguide/multi_project_builds.html + */ + +plugins { + // Apply the foojay-resolver plugin to allow automatic download of JDKs + id 'org.gradle.toolchains.foojay-resolver-convention' version '0.4.0' +} + +rootProject.name = 'java-calculator' +include('app') From b7358bf2037f78682e67205197723c4218460c11 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 8 Jun 2023 19:26:56 +0900 Subject: [PATCH 02/28] =?UTF-8?q?feat:=20=EC=82=AC=EC=9A=A9=EC=9E=90=20?= =?UTF-8?q?=EC=9E=85=EB=A0=A5=EC=9D=84=20=EB=B0=9B=EC=95=84=20=EB=A9=94?= =?UTF-8?q?=EB=89=B4=EB=A5=BC=20=EC=84=A0=ED=83=9D=ED=95=98=EB=8A=94=20?= =?UTF-8?q?=EA=B8=B0=EB=8A=A5=20=EC=B6=94=EA=B0=80=20-=20=EC=88=AB?= =?UTF-8?q?=EC=9E=90=20=EC=9D=B4=EC=99=B8=EC=9D=98=20=EB=AC=B8=EC=9E=90?= =?UTF-8?q?=EB=A5=BC=20=EC=9E=85=EB=A0=A5=ED=95=98=EB=8A=94=20=EA=B2=BD?= =?UTF-8?q?=EC=9A=B0=20=EC=98=88=EC=99=B8=20=EC=B2=98=EB=A6=AC=20-=20?= =?UTF-8?q?=ED=98=84=EC=9E=AC=20=EC=84=9C=EB=B9=84=EC=8A=A4=20=EB=90=98?= =?UTF-8?q?=EA=B3=A0=20=EC=9E=88=EB=8A=94=20=EB=A9=94=EB=89=B4=20=EC=9D=B4?= =?UTF-8?q?=EC=99=B8=EC=9D=98=20=EC=88=AB=EC=9E=90=EB=A5=BC=20=EC=9E=85?= =?UTF-8?q?=EB=A0=A5=ED=95=98=EB=8A=94=20=EA=B2=BD=EC=9A=B0=20=EC=98=88?= =?UTF-8?q?=EC=99=B8=20=EC=B2=98=EB=A6=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/App.java | 3 ++ .../calculator/controller/MainController.java | 39 ++++++++++++++++++ app/src/main/java/calculator/entity/Menu.java | 40 +++++++++++++++++++ .../validation/MenuInputValidator.java | 23 +++++++++++ .../exception/MenuInputException.java | 8 ++++ .../main/java/calculator/view/InputView.java | 15 +++++++ .../main/java/calculator/view/OutputView.java | 25 ++++++++++++ 7 files changed, 153 insertions(+) create mode 100644 app/src/main/java/calculator/controller/MainController.java create mode 100644 app/src/main/java/calculator/entity/Menu.java create mode 100644 app/src/main/java/calculator/validation/MenuInputValidator.java create mode 100644 app/src/main/java/calculator/validation/exception/MenuInputException.java create mode 100644 app/src/main/java/calculator/view/InputView.java create mode 100644 app/src/main/java/calculator/view/OutputView.java diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java index 251db76d0..07e4c382a 100644 --- a/app/src/main/java/calculator/App.java +++ b/app/src/main/java/calculator/App.java @@ -1,7 +1,10 @@ package calculator; +import calculator.controller.MainController; + public class App { public static void main(String[] args) { + new MainController().run(); } } diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java new file mode 100644 index 000000000..d04f8cc4d --- /dev/null +++ b/app/src/main/java/calculator/controller/MainController.java @@ -0,0 +1,39 @@ +package calculator.controller; + +import static calculator.entity.Menu.getSelectedMenu; +import static calculator.validation.MenuInputValidator.validateIsNumericMenuInput; +import static calculator.view.InputView.readLine; +import static calculator.view.OutputView.printMultiple; +import static calculator.view.OutputView.printWithLineBreak; +import static calculator.view.OutputView.printWithoutLineBreak; + +import calculator.entity.Menu; + +public class MainController { + + private static final String MENU_INPUT_MESSAGE = "메뉴를 입력해주세요(숫자만 입력) : "; + + public void run() { + Menu selectedMenu = null; + + try { + showMenu(); + int menuNumber = selectMenuNumber(); + selectedMenu = getSelectedMenu(menuNumber); + } catch (Exception e) { + printWithLineBreak(e.getMessage()); + } + } + + private void showMenu() { + printMultiple(Menu.values()); + printWithLineBreak(); + } + + private int selectMenuNumber() { + printWithoutLineBreak(MENU_INPUT_MESSAGE); + String menuInput = readLine().trim(); + validateIsNumericMenuInput(menuInput); + return Integer.parseInt(menuInput); + } +} diff --git a/app/src/main/java/calculator/entity/Menu.java b/app/src/main/java/calculator/entity/Menu.java new file mode 100644 index 000000000..72e5377a3 --- /dev/null +++ b/app/src/main/java/calculator/entity/Menu.java @@ -0,0 +1,40 @@ +package calculator.entity; + +import static calculator.validation.MenuInputValidator.validateIsExistedMenu; + +public enum Menu { + + READ_HISTORY(1, "조회"), + CALCULATE(2, "계산"); + + private final int number; + private final String name; + + Menu(int number, String name) { + this.number = number; + this.name = name; + } + + public static Menu getSelectedMenu(int selectedMenuNumber) { + Menu selectedMenu = null; + + for (Menu menu : Menu.values()) { + if (selectedMenuNumber == menu.getNumber()) { + selectedMenu = menu; + break; + } + } + + validateIsExistedMenu(selectedMenu); + return selectedMenu; + } + + public int getNumber() { + return number; + } + + @Override + public String toString() { + return number + "." + name; + } +} diff --git a/app/src/main/java/calculator/validation/MenuInputValidator.java b/app/src/main/java/calculator/validation/MenuInputValidator.java new file mode 100644 index 000000000..4edf7dbc4 --- /dev/null +++ b/app/src/main/java/calculator/validation/MenuInputValidator.java @@ -0,0 +1,23 @@ +package calculator.validation; + +import calculator.entity.Menu; +import calculator.validation.exception.MenuInputException; + +public class MenuInputValidator { + + private static final String MENU_INPUT_REGEX = "\\d+"; + private static final String NOT_NUMERIC_MENU_INPUT_MESSAGE = "메뉴는 숫자만 입력 가능합니다."; + private static final String NOT_EXIST_MENU_MESSAGE = "존재하지 않는 메뉴입니다."; + + public static void validateIsNumericMenuInput(String menuInput) { + if (!menuInput.matches(MENU_INPUT_REGEX)) { + throw new MenuInputException(NOT_NUMERIC_MENU_INPUT_MESSAGE); + } + } + + public static void validateIsExistedMenu(Menu selectedMenu) { + if (selectedMenu == null) { + throw new MenuInputException(NOT_EXIST_MENU_MESSAGE); + } + } +} diff --git a/app/src/main/java/calculator/validation/exception/MenuInputException.java b/app/src/main/java/calculator/validation/exception/MenuInputException.java new file mode 100644 index 000000000..bf33f1095 --- /dev/null +++ b/app/src/main/java/calculator/validation/exception/MenuInputException.java @@ -0,0 +1,8 @@ +package calculator.validation.exception; + +public class MenuInputException extends RuntimeException { + + public MenuInputException(String message) { + super(message); + } +} diff --git a/app/src/main/java/calculator/view/InputView.java b/app/src/main/java/calculator/view/InputView.java new file mode 100644 index 000000000..22cf1391f --- /dev/null +++ b/app/src/main/java/calculator/view/InputView.java @@ -0,0 +1,15 @@ +package calculator.view; + +import java.util.Scanner; + +public class InputView { + + private static final Scanner SCANNER = new Scanner(System.in); + + private InputView() { + } + + public static String readLine() { + return SCANNER.nextLine(); + } +} diff --git a/app/src/main/java/calculator/view/OutputView.java b/app/src/main/java/calculator/view/OutputView.java new file mode 100644 index 000000000..b5332a222 --- /dev/null +++ b/app/src/main/java/calculator/view/OutputView.java @@ -0,0 +1,25 @@ +package calculator.view; + +public class OutputView { + + private OutputView() { + } + + public static void printWithLineBreak() { + System.out.println(); + } + + public static void printWithLineBreak(String output) { + System.out.println(output); + } + + public static void printWithoutLineBreak(String output) { + System.out.print(output); + } + + public static void printMultiple(T[] outputs) { + for (T output : outputs) { + System.out.println(output); + } + } +} From 99c00fd6333b872ac751d714d9ada70a516ffbbd Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 8 Jun 2023 19:30:01 +0900 Subject: [PATCH 03/28] =?UTF-8?q?feat:=20=ED=94=84=EB=A1=9C=EA=B7=B8?= =?UTF-8?q?=EB=9E=A8=20=EC=A2=85=EB=A3=8C=20=EA=B8=B0=EB=8A=A5=20=EC=B6=94?= =?UTF-8?q?=EA=B0=80?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../calculator/controller/MainController.java | 19 ++++++++++++------- app/src/main/java/calculator/entity/Menu.java | 3 ++- 2 files changed, 14 insertions(+), 8 deletions(-) diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index d04f8cc4d..451744067 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -12,17 +12,22 @@ public class MainController { private static final String MENU_INPUT_MESSAGE = "메뉴를 입력해주세요(숫자만 입력) : "; + private static final String QUIT_MESSAGE = "프로그램을 종료합니다."; public void run() { Menu selectedMenu = null; - try { - showMenu(); - int menuNumber = selectMenuNumber(); - selectedMenu = getSelectedMenu(menuNumber); - } catch (Exception e) { - printWithLineBreak(e.getMessage()); - } + do { + try { + showMenu(); + int menuNumber = selectMenuNumber(); + selectedMenu = getSelectedMenu(menuNumber); + } catch (Exception e) { + printWithLineBreak(e.getMessage()); + } + } while (selectedMenu != Menu.QUIT); + + printWithLineBreak(QUIT_MESSAGE); } private void showMenu() { diff --git a/app/src/main/java/calculator/entity/Menu.java b/app/src/main/java/calculator/entity/Menu.java index 72e5377a3..b6ae4e164 100644 --- a/app/src/main/java/calculator/entity/Menu.java +++ b/app/src/main/java/calculator/entity/Menu.java @@ -5,7 +5,8 @@ public enum Menu { READ_HISTORY(1, "조회"), - CALCULATE(2, "계산"); + CALCULATE(2, "계산"), + QUIT(3, "종료"); private final int number; private final String name; From a4a53faa07bb1da8175628ebc0ecead9499ca50a Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Mon, 12 Jun 2023 02:49:58 +0900 Subject: [PATCH 04/28] =?UTF-8?q?refactor:=20=EB=A9=94=EB=89=B4=20?= =?UTF-8?q?=EC=9E=85=EC=B6=9C=EB=A0=A5=EC=9D=84=20MainController=EC=97=90?= =?UTF-8?q?=EC=84=9C=20InputView,=20OutputView=EB=A1=9C=20=EC=9D=B4?= =?UTF-8?q?=EA=B4=80=20-=20=EA=B0=9D=EC=B2=B4=20=EC=B1=85=EC=9E=84=20?= =?UTF-8?q?=EB=B6=84=EB=A6=AC=EB=A5=BC=20=EC=9C=84=ED=95=B4=20=EC=9E=85?= =?UTF-8?q?=EC=B6=9C=EB=A0=A5=20=EA=B8=B0=EB=8A=A5=EC=9D=80=20View?= =?UTF-8?q?=EB=A1=9C=20=EB=AA=A8=EB=91=90=20=EC=9D=B4=EA=B4=80=20-=20?= =?UTF-8?q?=EB=B3=84=EB=8F=84=EC=9D=98=20Validator=EB=A5=BC=20=EC=82=AD?= =?UTF-8?q?=EC=A0=9C=ED=95=98=EA=B3=A0,=20=EA=B0=81=20=EA=B0=9D=EC=B2=B4?= =?UTF-8?q?=EC=97=90=EC=84=9C=20=EC=98=88=EC=99=B8=EC=B2=98=EB=A6=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../calculator/controller/MainController.java | 26 +++---------------- app/src/main/java/calculator/entity/Menu.java | 10 ++++++- .../validation/MenuInputValidator.java | 23 ---------------- .../main/java/calculator/view/InputView.java | 21 ++++++++++++++- .../main/java/calculator/view/OutputView.java | 17 +++++++++++- 5 files changed, 49 insertions(+), 48 deletions(-) delete mode 100644 app/src/main/java/calculator/validation/MenuInputValidator.java diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index 451744067..64987ce8d 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -1,44 +1,26 @@ package calculator.controller; import static calculator.entity.Menu.getSelectedMenu; -import static calculator.validation.MenuInputValidator.validateIsNumericMenuInput; -import static calculator.view.InputView.readLine; -import static calculator.view.OutputView.printMultiple; +import static calculator.view.InputView.inputMenuNumber; import static calculator.view.OutputView.printWithLineBreak; -import static calculator.view.OutputView.printWithoutLineBreak; +import static calculator.view.OutputView.showQuitMessage; import calculator.entity.Menu; public class MainController { - private static final String MENU_INPUT_MESSAGE = "메뉴를 입력해주세요(숫자만 입력) : "; - private static final String QUIT_MESSAGE = "프로그램을 종료합니다."; - public void run() { Menu selectedMenu = null; do { try { - showMenu(); - int menuNumber = selectMenuNumber(); + int menuNumber = inputMenuNumber(); selectedMenu = getSelectedMenu(menuNumber); } catch (Exception e) { printWithLineBreak(e.getMessage()); } } while (selectedMenu != Menu.QUIT); - printWithLineBreak(QUIT_MESSAGE); - } - - private void showMenu() { - printMultiple(Menu.values()); - printWithLineBreak(); - } - - private int selectMenuNumber() { - printWithoutLineBreak(MENU_INPUT_MESSAGE); - String menuInput = readLine().trim(); - validateIsNumericMenuInput(menuInput); - return Integer.parseInt(menuInput); + showQuitMessage(); } } diff --git a/app/src/main/java/calculator/entity/Menu.java b/app/src/main/java/calculator/entity/Menu.java index b6ae4e164..9dcb650ac 100644 --- a/app/src/main/java/calculator/entity/Menu.java +++ b/app/src/main/java/calculator/entity/Menu.java @@ -1,6 +1,6 @@ package calculator.entity; -import static calculator.validation.MenuInputValidator.validateIsExistedMenu; +import calculator.validation.exception.MenuInputException; public enum Menu { @@ -8,6 +8,7 @@ public enum Menu { CALCULATE(2, "계산"), QUIT(3, "종료"); + private static final String NOT_EXIST_MENU_MESSAGE = "존재하지 않는 메뉴입니다."; private final int number; private final String name; @@ -27,9 +28,16 @@ public static Menu getSelectedMenu(int selectedMenuNumber) { } validateIsExistedMenu(selectedMenu); + return selectedMenu; } + private static void validateIsExistedMenu(Menu selectedMenu) { + if (selectedMenu == null) { + throw new MenuInputException(NOT_EXIST_MENU_MESSAGE); + } + } + public int getNumber() { return number; } diff --git a/app/src/main/java/calculator/validation/MenuInputValidator.java b/app/src/main/java/calculator/validation/MenuInputValidator.java deleted file mode 100644 index 4edf7dbc4..000000000 --- a/app/src/main/java/calculator/validation/MenuInputValidator.java +++ /dev/null @@ -1,23 +0,0 @@ -package calculator.validation; - -import calculator.entity.Menu; -import calculator.validation.exception.MenuInputException; - -public class MenuInputValidator { - - private static final String MENU_INPUT_REGEX = "\\d+"; - private static final String NOT_NUMERIC_MENU_INPUT_MESSAGE = "메뉴는 숫자만 입력 가능합니다."; - private static final String NOT_EXIST_MENU_MESSAGE = "존재하지 않는 메뉴입니다."; - - public static void validateIsNumericMenuInput(String menuInput) { - if (!menuInput.matches(MENU_INPUT_REGEX)) { - throw new MenuInputException(NOT_NUMERIC_MENU_INPUT_MESSAGE); - } - } - - public static void validateIsExistedMenu(Menu selectedMenu) { - if (selectedMenu == null) { - throw new MenuInputException(NOT_EXIST_MENU_MESSAGE); - } - } -} diff --git a/app/src/main/java/calculator/view/InputView.java b/app/src/main/java/calculator/view/InputView.java index 22cf1391f..f6c83bccd 100644 --- a/app/src/main/java/calculator/view/InputView.java +++ b/app/src/main/java/calculator/view/InputView.java @@ -1,15 +1,34 @@ package calculator.view; +import static calculator.view.OutputView.showMenu; + +import calculator.validation.exception.MenuInputException; import java.util.Scanner; -public class InputView { +public final class InputView { private static final Scanner SCANNER = new Scanner(System.in); + private static final String NUMERIC_REGEX = "\\d+"; + private static final String NOT_NUMERIC_MENU_INPUT_MESSAGE = "메뉴는 숫자만 입력 가능합니다."; private InputView() { } + public static int inputMenuNumber() { + showMenu(); + String menuInput = readLine().trim(); + validateIsNumericMenuInput(menuInput); + + return Integer.parseInt(menuInput); + } + public static String readLine() { return SCANNER.nextLine(); } + + private static void validateIsNumericMenuInput(String menuInput) { + if (!menuInput.matches(NUMERIC_REGEX)) { + throw new MenuInputException(NOT_NUMERIC_MENU_INPUT_MESSAGE); + } + } } diff --git a/app/src/main/java/calculator/view/OutputView.java b/app/src/main/java/calculator/view/OutputView.java index b5332a222..daa6f3e5e 100644 --- a/app/src/main/java/calculator/view/OutputView.java +++ b/app/src/main/java/calculator/view/OutputView.java @@ -1,10 +1,25 @@ package calculator.view; -public class OutputView { +import calculator.entity.Menu; + +public final class OutputView { + + private static final String MENU_INPUT_MESSAGE = "메뉴를 입력해주세요(숫자만 입력) : "; + private static final String QUIT_MESSAGE = "프로그램을 종료합니다."; private OutputView() { } + public static void showMenu() { + printMultiple(Menu.values()); + printWithLineBreak(); + printWithoutLineBreak(MENU_INPUT_MESSAGE); + } + + public static void showQuitMessage() { + printWithLineBreak(QUIT_MESSAGE); + } + public static void printWithLineBreak() { System.out.println(); } From aacebd7f401cb4ba4554e5210ef9d5d007324bc0 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Mon, 12 Jun 2023 03:00:31 +0900 Subject: [PATCH 05/28] =?UTF-8?q?refactor:=20=EB=A9=94=EB=89=B4=EC=9D=98?= =?UTF-8?q?=20=EC=B4=88=EA=B8=B0=EA=B0=92=EC=9D=84=20null=EC=97=90?= =?UTF-8?q?=EC=84=9C=20Optional=EB=A1=9C=20=EB=B3=80=EA=B2=BD=20-=20null?= =?UTF-8?q?=20=EA=B0=92=20=EC=B4=88=EA=B8=B0=ED=99=94=EB=A1=9C=20=EC=9D=B8?= =?UTF-8?q?=ED=95=9C=20NPE=EB=A5=BC=20=EB=B0=A9=EC=A7=80=20-=20Stream=20?= =?UTF-8?q?=EC=82=AC=EC=9A=A9=EC=9D=84=20=ED=86=B5=ED=95=9C=20=EA=B0=80?= =?UTF-8?q?=EB=8F=85=EC=84=B1=20=ED=96=A5=EC=83=81?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../calculator/controller/MainController.java | 8 ++++--- app/src/main/java/calculator/entity/Menu.java | 21 ++++++++++--------- 2 files changed, 16 insertions(+), 13 deletions(-) diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index 64987ce8d..2bfcee699 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -1,25 +1,27 @@ package calculator.controller; import static calculator.entity.Menu.getSelectedMenu; +import static calculator.entity.Menu.isQuit; import static calculator.view.InputView.inputMenuNumber; import static calculator.view.OutputView.printWithLineBreak; import static calculator.view.OutputView.showQuitMessage; import calculator.entity.Menu; +import java.util.Optional; public class MainController { public void run() { - Menu selectedMenu = null; + Optional

selectedMenu = Optional.empty(); - do { + while (!isQuit(selectedMenu)) { try { int menuNumber = inputMenuNumber(); selectedMenu = getSelectedMenu(menuNumber); } catch (Exception e) { printWithLineBreak(e.getMessage()); } - } while (selectedMenu != Menu.QUIT); + } showQuitMessage(); } diff --git a/app/src/main/java/calculator/entity/Menu.java b/app/src/main/java/calculator/entity/Menu.java index 9dcb650ac..b8187b47c 100644 --- a/app/src/main/java/calculator/entity/Menu.java +++ b/app/src/main/java/calculator/entity/Menu.java @@ -1,6 +1,8 @@ package calculator.entity; import calculator.validation.exception.MenuInputException; +import java.util.Arrays; +import java.util.Optional; public enum Menu { @@ -17,23 +19,22 @@ public enum Menu { this.name = name; } - public static Menu getSelectedMenu(int selectedMenuNumber) { - Menu selectedMenu = null; + public static boolean isQuit(Optional selectedMenu) { + return selectedMenu.equals(Optional.of(Menu.QUIT)); + } - for (Menu menu : Menu.values()) { - if (selectedMenuNumber == menu.getNumber()) { - selectedMenu = menu; - break; - } - } + public static Optional getSelectedMenu(int selectedMenuNumber) { + Optional selectedMenu = Arrays.stream(Menu.values()) + .filter(menu -> selectedMenuNumber == menu.getNumber()) + .findFirst(); validateIsExistedMenu(selectedMenu); return selectedMenu; } - private static void validateIsExistedMenu(Menu selectedMenu) { - if (selectedMenu == null) { + private static void validateIsExistedMenu(Optional selectedMenu) { + if (selectedMenu.isEmpty()) { throw new MenuInputException(NOT_EXIST_MENU_MESSAGE); } } From 8c7203bb87558edef6839e8ac1e43c6eb87805df Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Mon, 12 Jun 2023 03:03:56 +0900 Subject: [PATCH 06/28] =?UTF-8?q?refactor:=20try-catch=EB=A5=BC=20MainCont?= =?UTF-8?q?roller=EC=97=90=EC=84=9C=20App=EC=9C=BC=EB=A1=9C=20=EC=9D=B4?= =?UTF-8?q?=EB=8F=99=20-=20=EB=8B=A8=EC=88=9C=20=EC=98=88=EC=99=B8=20?= =?UTF-8?q?=EB=AC=B8=EA=B5=AC=20=ED=94=84=EB=A6=B0=ED=8A=B8=20=EC=9A=A9?= =?UTF-8?q?=EC=9D=B4=EB=AF=80=EB=A1=9C=20=EC=B5=9C=EC=83=81=EB=8B=A8=20App?= =?UTF-8?q?=EC=97=90=EC=84=9C=20=EC=98=88=EC=99=B8=EC=B2=98=EB=A6=AC=20-?= =?UTF-8?q?=20=EC=A0=95=EC=83=81=EA=B3=BC=20=EC=98=88=EC=99=B8=20=EC=83=81?= =?UTF-8?q?=ED=99=A9=20=EB=AA=A8=EB=91=90=20=EC=A2=85=EB=A3=8C=20=EB=A9=94?= =?UTF-8?q?=EC=8B=9C=EC=A7=80=20=EC=B6=9C=EB=A0=A5=20-=20MainController?= =?UTF-8?q?=EC=9D=98=20=EC=9D=B8=EB=8D=B4=ED=8A=B8=20=EA=B9=8A=EC=9D=B4?= =?UTF-8?q?=EA=B0=80=202=EC=97=90=EC=84=9C=201=EB=A1=9C=20=EA=B0=90?= =?UTF-8?q?=EC=86=8C?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/App.java | 11 ++++++++++- .../java/calculator/controller/MainController.java | 12 ++---------- 2 files changed, 12 insertions(+), 11 deletions(-) diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java index 07e4c382a..c59257d4e 100644 --- a/app/src/main/java/calculator/App.java +++ b/app/src/main/java/calculator/App.java @@ -1,10 +1,19 @@ package calculator; +import static calculator.view.OutputView.printWithLineBreak; +import static calculator.view.OutputView.showQuitMessage; + import calculator.controller.MainController; public class App { public static void main(String[] args) { - new MainController().run(); + try { + new MainController().run(); + } catch (Exception e) { + printWithLineBreak(e.getMessage()); + } finally { + showQuitMessage(); + } } } diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index 2bfcee699..4c1047ca7 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -3,8 +3,6 @@ import static calculator.entity.Menu.getSelectedMenu; import static calculator.entity.Menu.isQuit; import static calculator.view.InputView.inputMenuNumber; -import static calculator.view.OutputView.printWithLineBreak; -import static calculator.view.OutputView.showQuitMessage; import calculator.entity.Menu; import java.util.Optional; @@ -15,14 +13,8 @@ public void run() { Optional selectedMenu = Optional.empty(); while (!isQuit(selectedMenu)) { - try { - int menuNumber = inputMenuNumber(); - selectedMenu = getSelectedMenu(menuNumber); - } catch (Exception e) { - printWithLineBreak(e.getMessage()); - } + int menuNumber = inputMenuNumber(); + selectedMenu = getSelectedMenu(menuNumber); } - - showQuitMessage(); } } From 9de3ddf827f7b6c62520d6e538aa8563447d15b6 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Mon, 12 Jun 2023 19:30:22 +0900 Subject: [PATCH 07/28] =?UTF-8?q?refactor:=20Optional=20=EA=B4=80=EB=A0=A8?= =?UTF-8?q?=ED=95=9C=20=EC=95=88=ED=8B=B0=ED=8C=A8=ED=84=B4=20=EA=B0=9C?= =?UTF-8?q?=EC=84=A0=20-=20Menu.isQuit()=EC=9D=98=20=EB=A7=A4=EA=B0=9C?= =?UTF-8?q?=EB=B3=80=EC=88=98=EB=A5=BC=20=EA=B8=B0=EC=A1=B4=20Optional?= =?UTF-8?q?=EC=97=90=EC=84=9C=20Menu=20=ED=83=80=EC=9E=85=EC=9C=BC?= =?UTF-8?q?=EB=A1=9C=20=EB=B3=80=EA=B2=BD=20-=20Menu.getSelectedMenu()?= =?UTF-8?q?=EC=9D=98=20=EC=98=88=EC=99=B8=EC=B2=98=EB=A6=AC=EB=A5=BC=20Opt?= =?UTF-8?q?ional=EC=9D=98=20orElseThrow()=EB=A5=BC=20=ED=86=B5=ED=95=B4=20?= =?UTF-8?q?=EC=A7=84=ED=96=89?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../calculator/controller/MainController.java | 12 ++++++---- app/src/main/java/calculator/entity/Menu.java | 22 +++++-------------- .../main/java/calculator/view/InputView.java | 9 +++----- 3 files changed, 17 insertions(+), 26 deletions(-) diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index 4c1047ca7..8c5122d13 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -3,18 +3,22 @@ import static calculator.entity.Menu.getSelectedMenu; import static calculator.entity.Menu.isQuit; import static calculator.view.InputView.inputMenuNumber; +import static calculator.view.OutputView.showMenu; import calculator.entity.Menu; -import java.util.Optional; public class MainController { public void run() { - Optional selectedMenu = Optional.empty(); + while (true) { + showMenu(); - while (!isQuit(selectedMenu)) { int menuNumber = inputMenuNumber(); - selectedMenu = getSelectedMenu(menuNumber); + Menu selectedMenu = getSelectedMenu(menuNumber); + + if (isQuit(selectedMenu)) { + break; + } } } } diff --git a/app/src/main/java/calculator/entity/Menu.java b/app/src/main/java/calculator/entity/Menu.java index b8187b47c..78e9caac5 100644 --- a/app/src/main/java/calculator/entity/Menu.java +++ b/app/src/main/java/calculator/entity/Menu.java @@ -2,7 +2,6 @@ import calculator.validation.exception.MenuInputException; import java.util.Arrays; -import java.util.Optional; public enum Menu { @@ -19,24 +18,15 @@ public enum Menu { this.name = name; } - public static boolean isQuit(Optional selectedMenu) { - return selectedMenu.equals(Optional.of(Menu.QUIT)); + public static boolean isQuit(Menu selectedMenu) { + return selectedMenu == Menu.QUIT; } - public static Optional getSelectedMenu(int selectedMenuNumber) { - Optional selectedMenu = Arrays.stream(Menu.values()) + public static Menu getSelectedMenu(int selectedMenuNumber) { + return Arrays.stream(Menu.values()) .filter(menu -> selectedMenuNumber == menu.getNumber()) - .findFirst(); - - validateIsExistedMenu(selectedMenu); - - return selectedMenu; - } - - private static void validateIsExistedMenu(Optional selectedMenu) { - if (selectedMenu.isEmpty()) { - throw new MenuInputException(NOT_EXIST_MENU_MESSAGE); - } + .findFirst() + .orElseThrow(() -> new MenuInputException(NOT_EXIST_MENU_MESSAGE)); } public int getNumber() { diff --git a/app/src/main/java/calculator/view/InputView.java b/app/src/main/java/calculator/view/InputView.java index f6c83bccd..260747961 100644 --- a/app/src/main/java/calculator/view/InputView.java +++ b/app/src/main/java/calculator/view/InputView.java @@ -1,7 +1,5 @@ package calculator.view; -import static calculator.view.OutputView.showMenu; - import calculator.validation.exception.MenuInputException; import java.util.Scanner; @@ -15,9 +13,8 @@ private InputView() { } public static int inputMenuNumber() { - showMenu(); String menuInput = readLine().trim(); - validateIsNumericMenuInput(menuInput); + validateMenuInput(menuInput); return Integer.parseInt(menuInput); } @@ -26,8 +23,8 @@ public static String readLine() { return SCANNER.nextLine(); } - private static void validateIsNumericMenuInput(String menuInput) { - if (!menuInput.matches(NUMERIC_REGEX)) { + private static void validateMenuInput(String menu) { + if (!menu.matches(NUMERIC_REGEX)) { throw new MenuInputException(NOT_NUMERIC_MENU_INPUT_MESSAGE); } } From ec9a1932e2308b078bc843d08099be97abcbe2c0 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Mon, 12 Jun 2023 23:20:50 +0900 Subject: [PATCH 08/28] =?UTF-8?q?feat:=20=EA=B3=84=EC=82=B0=EC=8B=9D=20?= =?UTF-8?q?=EC=9E=85=EB=A0=A5=20=EA=B8=B0=EB=8A=A5=20=EC=B6=94=EA=B0=80=20?= =?UTF-8?q?-=20=EC=9E=90=EC=97=B0=EC=88=98=EC=99=80=20=EC=82=AC=EC=B9=99?= =?UTF-8?q?=EC=97=B0=EC=82=B0=20=EA=B8=B0=ED=98=B8=20=EC=9D=B4=EC=99=B8?= =?UTF-8?q?=EC=9D=98=20=EC=9E=85=EB=A0=A5=EC=97=90=20=EB=8C=80=ED=95=9C=20?= =?UTF-8?q?=EC=98=88=EC=99=B8=EC=B2=98=EB=A6=AC=20-=20=EA=B3=B5=EB=B0=B1?= =?UTF-8?q?=EC=9D=84=20=EA=B8=B0=EC=A4=80=EC=9C=BC=EB=A1=9C=20=EA=B5=AC?= =?UTF-8?q?=EB=B6=84=EB=90=98=EC=A7=80=20=EC=95=8A=EB=8A=94=20=EC=9E=85?= =?UTF-8?q?=EB=A0=A5=EC=97=90=20=EB=8C=80=ED=95=9C=20=EC=98=88=EC=99=B8?= =?UTF-8?q?=EC=B2=98=EB=A6=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/App.java | 3 ++- .../calculator/controller/MainController.java | 16 +++++++++++++ app/src/main/java/calculator/entity/Menu.java | 4 ++++ .../java/calculator/service/Calculator.java | 13 ++++++++++ .../exception/ExpressionInputException.java | 8 +++++++ .../main/java/calculator/view/InputView.java | 24 +++++++++++++++++-- .../main/java/calculator/view/OutputView.java | 6 +++++ 7 files changed, 71 insertions(+), 3 deletions(-) create mode 100644 app/src/main/java/calculator/service/Calculator.java create mode 100644 app/src/main/java/calculator/validation/exception/ExpressionInputException.java diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java index c59257d4e..cc003b8f1 100644 --- a/app/src/main/java/calculator/App.java +++ b/app/src/main/java/calculator/App.java @@ -4,12 +4,13 @@ import static calculator.view.OutputView.showQuitMessage; import calculator.controller.MainController; +import calculator.service.Calculator; public class App { public static void main(String[] args) { try { - new MainController().run(); + new MainController(new Calculator()).run(); } catch (Exception e) { printWithLineBreak(e.getMessage()); } finally { diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index 8c5122d13..df1200a48 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -1,14 +1,22 @@ package calculator.controller; import static calculator.entity.Menu.getSelectedMenu; +import static calculator.entity.Menu.isCalculate; import static calculator.entity.Menu.isQuit; import static calculator.view.InputView.inputMenuNumber; import static calculator.view.OutputView.showMenu; import calculator.entity.Menu; +import calculator.service.Calculator; public class MainController { + private final Calculator calculator; + + public MainController(Calculator calculator) { + this.calculator = calculator; + } + public void run() { while (true) { showMenu(); @@ -19,6 +27,14 @@ public void run() { if (isQuit(selectedMenu)) { break; } + + execute(selectedMenu); + } + } + + private void execute(Menu selectedMenu) { + if (isCalculate(selectedMenu)) { + calculator.calculate(); } } } diff --git a/app/src/main/java/calculator/entity/Menu.java b/app/src/main/java/calculator/entity/Menu.java index 78e9caac5..45f9878f9 100644 --- a/app/src/main/java/calculator/entity/Menu.java +++ b/app/src/main/java/calculator/entity/Menu.java @@ -18,6 +18,10 @@ public enum Menu { this.name = name; } + public static boolean isCalculate(Menu selectedMenu) { + return selectedMenu == Menu.CALCULATE; + } + public static boolean isQuit(Menu selectedMenu) { return selectedMenu == Menu.QUIT; } diff --git a/app/src/main/java/calculator/service/Calculator.java b/app/src/main/java/calculator/service/Calculator.java new file mode 100644 index 000000000..9d2604649 --- /dev/null +++ b/app/src/main/java/calculator/service/Calculator.java @@ -0,0 +1,13 @@ +package calculator.service; + +import static calculator.view.InputView.inputExpression; +import static calculator.view.OutputView.showExpressionInputMessage; + +public class Calculator { + + public void calculate() { + showExpressionInputMessage(); + + String infixExpression = inputExpression(); + } +} diff --git a/app/src/main/java/calculator/validation/exception/ExpressionInputException.java b/app/src/main/java/calculator/validation/exception/ExpressionInputException.java new file mode 100644 index 000000000..657862b73 --- /dev/null +++ b/app/src/main/java/calculator/validation/exception/ExpressionInputException.java @@ -0,0 +1,8 @@ +package calculator.validation.exception; + +public class ExpressionInputException extends RuntimeException { + + public ExpressionInputException(String message) { + super(message); + } +} diff --git a/app/src/main/java/calculator/view/InputView.java b/app/src/main/java/calculator/view/InputView.java index 260747961..33e9fba46 100644 --- a/app/src/main/java/calculator/view/InputView.java +++ b/app/src/main/java/calculator/view/InputView.java @@ -1,5 +1,6 @@ package calculator.view; +import calculator.validation.exception.ExpressionInputException; import calculator.validation.exception.MenuInputException; import java.util.Scanner; @@ -7,19 +8,32 @@ public final class InputView { private static final Scanner SCANNER = new Scanner(System.in); private static final String NUMERIC_REGEX = "\\d+"; + private static final String EXPRESSION_REGEX = "^\\d+(\\s[+\\-*/]\\s\\d+)*"; private static final String NOT_NUMERIC_MENU_INPUT_MESSAGE = "메뉴는 숫자만 입력 가능합니다."; + private static final String INVALID_EXPRESSION_MESSAGE = "올바르지 않은 계산식이 입력되었습니다."; private InputView() { } public static int inputMenuNumber() { - String menuInput = readLine().trim(); + String menuInput = readLineWithTrimming(); validateMenuInput(menuInput); return Integer.parseInt(menuInput); } - public static String readLine() { + public static String inputExpression() { + String expression = readLineWithTrimming(); + validateExpression(expression); + + return expression; + } + + private static String readLineWithTrimming() { + return readLine().trim(); + } + + private static String readLine() { return SCANNER.nextLine(); } @@ -28,4 +42,10 @@ private static void validateMenuInput(String menu) { throw new MenuInputException(NOT_NUMERIC_MENU_INPUT_MESSAGE); } } + + private static void validateExpression(String infixExpression) { + if (!infixExpression.matches(EXPRESSION_REGEX)) { + throw new ExpressionInputException(INVALID_EXPRESSION_MESSAGE); + } + } } diff --git a/app/src/main/java/calculator/view/OutputView.java b/app/src/main/java/calculator/view/OutputView.java index daa6f3e5e..f9776aa72 100644 --- a/app/src/main/java/calculator/view/OutputView.java +++ b/app/src/main/java/calculator/view/OutputView.java @@ -5,6 +5,7 @@ public final class OutputView { private static final String MENU_INPUT_MESSAGE = "메뉴를 입력해주세요(숫자만 입력) : "; + private static final String EXPRESSION_INPUT_MESSAGE = "계산식을 입력하세요(자연수, 사칙연산, 공백 기준) : "; private static final String QUIT_MESSAGE = "프로그램을 종료합니다."; private OutputView() { @@ -16,6 +17,11 @@ public static void showMenu() { printWithoutLineBreak(MENU_INPUT_MESSAGE); } + public static void showExpressionInputMessage() { + printWithLineBreak(); + printWithoutLineBreak(EXPRESSION_INPUT_MESSAGE); + } + public static void showQuitMessage() { printWithLineBreak(QUIT_MESSAGE); } From 7bc84f5873cd38288d8df75452385c45c4a3b2ff Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Tue, 13 Jun 2023 00:57:14 +0900 Subject: [PATCH 09/28] =?UTF-8?q?feat:=20=EC=A4=91=EC=9C=84=ED=91=9C?= =?UTF-8?q?=ED=98=84=EC=8B=9D=20=EA=B3=84=EC=82=B0=20=EA=B8=B0=EB=8A=A5=20?= =?UTF-8?q?=EC=B6=94=EA=B0=80=20(=EB=8D=A7=EC=85=88,=20=EB=BA=84=EC=85=88,?= =?UTF-8?q?=20=EA=B3=B1=EC=85=88,=20=EB=82=98=EB=88=97=EC=85=88)=20-=20?= =?UTF-8?q?=EB=82=98=EB=88=97=EC=85=88=20=EC=97=B0=EC=82=B0=20=EC=8B=9C,?= =?UTF-8?q?=20=EC=A0=9C=EC=88=98=EC=97=90=200=EC=9D=B4=20=EB=93=A4?= =?UTF-8?q?=EC=96=B4=EC=98=A4=EB=8A=94=20=EA=B2=BD=EC=9A=B0=20=EC=98=88?= =?UTF-8?q?=EC=99=B8=EC=B2=98=EB=A6=AC=20-=20=EC=97=B0=EC=82=B0=EC=9E=90?= =?UTF-8?q?=20=EC=9A=B0=EC=84=A0=EC=88=9C=EC=9C=84=EB=8A=94=20=EA=B3=A0?= =?UTF-8?q?=EB=A0=A4=ED=95=98=EC=A7=80=20=EC=95=8A=EC=9D=8C?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../main/java/calculator/entity/Operator.java | 59 +++++++++++++++++++ .../java/calculator/service/Calculator.java | 54 ++++++++++++++++- .../main/java/calculator/view/OutputView.java | 6 ++ 3 files changed, 118 insertions(+), 1 deletion(-) create mode 100644 app/src/main/java/calculator/entity/Operator.java diff --git a/app/src/main/java/calculator/entity/Operator.java b/app/src/main/java/calculator/entity/Operator.java new file mode 100644 index 000000000..c77c85093 --- /dev/null +++ b/app/src/main/java/calculator/entity/Operator.java @@ -0,0 +1,59 @@ +package calculator.entity; + +import java.util.Arrays; + +public enum Operator { + ADD("+") { + @Override + public int evaluate(int operand1, int operand2) { + return operand1 + operand2; + } + }, + SUBTRACT("-") { + @Override + public int evaluate(int operand1, int operand2) { + return operand1 - operand2; + } + }, + MULTIPLY("*") { + @Override + public int evaluate(int operand1, int operand2) { + return operand1 * operand2; + } + }, + DIVIDE("/") { + private static final int ZERO = 0; + private static final String DIVISION_BY_ZERO_MESSAGE = "0으로 나눌 수 없습니다."; + + @Override + public int evaluate(int operand1, int operand2) { + validateIsDivisorNotZero(operand2); + return operand1 / operand2; + } + + private void validateIsDivisorNotZero(int divisor) { + if (divisor == ZERO) { + throw new ArithmeticException(DIVISION_BY_ZERO_MESSAGE); + } + } + }; + + private final String symbol; + + Operator(String symbol) { + this.symbol = symbol; + } + + public static Operator getOperatorWithSameSymbol(String elementSymbol) { + return Arrays.stream(Operator.values()) + .filter(operator -> elementSymbol.equals(operator.getSymbol())) + .findFirst() + .get(); + } + + public String getSymbol() { + return symbol; + } + + public abstract int evaluate(int operand1, int operand2); +} diff --git a/app/src/main/java/calculator/service/Calculator.java b/app/src/main/java/calculator/service/Calculator.java index 9d2604649..7900411c1 100644 --- a/app/src/main/java/calculator/service/Calculator.java +++ b/app/src/main/java/calculator/service/Calculator.java @@ -1,13 +1,65 @@ package calculator.service; +import static calculator.entity.Operator.getOperatorWithSameSymbol; import static calculator.view.InputView.inputExpression; +import static calculator.view.OutputView.showCalculationResult; import static calculator.view.OutputView.showExpressionInputMessage; +import calculator.entity.Operator; +import java.util.Stack; + public class Calculator { public void calculate() { showExpressionInputMessage(); - String infixExpression = inputExpression(); + String expression = inputExpression(); + int calculationResult = solve(expression); + + showCalculationResult(calculationResult); + } + + private int solve(String expression) { + String[] elements = splitToElements(expression); + Stack operands = new Stack<>(); + Stack operators = new Stack<>(); + + for (String element : elements) { + savePartialEvaluationResult(operands, operators, element); + } + + return operands.pop(); + } + + private void savePartialEvaluationResult(Stack operands, Stack operators, + String element) { + if (!isNumeric(element)) { + Operator operator = getOperatorWithSameSymbol(element); + operators.push(operator); + + return; + } + + if (operators.isEmpty()) { + int operand = Integer.parseInt(element); + operands.push(operand); + + return; + } + + Operator operator = operators.pop(); + int operand1 = operands.pop(); + int operand2 = Integer.parseInt(element); + + int evaluationResult = operator.evaluate(operand1, operand2); + operands.push(evaluationResult); + } + + private String[] splitToElements(String expression) { + return expression.split(" "); + } + + private boolean isNumeric(String element) { + return element.matches("\\d+"); } } diff --git a/app/src/main/java/calculator/view/OutputView.java b/app/src/main/java/calculator/view/OutputView.java index f9776aa72..b71efca17 100644 --- a/app/src/main/java/calculator/view/OutputView.java +++ b/app/src/main/java/calculator/view/OutputView.java @@ -7,6 +7,7 @@ public final class OutputView { private static final String MENU_INPUT_MESSAGE = "메뉴를 입력해주세요(숫자만 입력) : "; private static final String EXPRESSION_INPUT_MESSAGE = "계산식을 입력하세요(자연수, 사칙연산, 공백 기준) : "; private static final String QUIT_MESSAGE = "프로그램을 종료합니다."; + private static final String CALCULATION_RESULT_MESSAGE = "계산 결과 : "; private OutputView() { } @@ -26,6 +27,11 @@ public static void showQuitMessage() { printWithLineBreak(QUIT_MESSAGE); } + public static void showCalculationResult(int calculationResult) { + printWithLineBreak(CALCULATION_RESULT_MESSAGE + calculationResult); + printWithLineBreak(); + } + public static void printWithLineBreak() { System.out.println(); } From 5f863aeb7f65f14228c974436d38e74155d9b734 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Tue, 13 Jun 2023 01:08:11 +0900 Subject: [PATCH 10/28] =?UTF-8?q?refactor:=20=EC=A0=95=EA=B7=9C=EC=8B=9D?= =?UTF-8?q?=20=EA=B2=80=EC=82=AC=20=EB=B0=8F=20=EB=AC=B8=EC=9E=90=EC=97=B4?= =?UTF-8?q?=20split=20=EA=B4=80=EB=A0=A8=20=EB=A1=9C=EC=A7=81=EC=9D=84=20S?= =?UTF-8?q?tringUtils=EB=A1=9C=20=EC=9D=B4=EA=B4=80=20-=20=EC=97=AC?= =?UTF-8?q?=EB=9F=AC=20=ED=81=B4=EB=9E=98=EC=8A=A4=EC=97=90=EC=84=9C=20?= =?UTF-8?q?=EA=B3=B5=ED=86=B5=EC=9C=BC=EB=A1=9C=20=EC=82=AC=EC=9A=A9?= =?UTF-8?q?=ED=95=A0=20=EC=88=98=20=EC=9E=88=EB=8A=94=20=EA=B8=B0=EB=8A=A5?= =?UTF-8?q?=EC=9D=80=20utils=EB=A1=9C=20=EB=B6=84=EB=A6=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../java/calculator/service/Calculator.java | 15 +++----------- .../java/calculator/utils/StringUtils.java | 20 +++++++++++++++++++ .../main/java/calculator/view/InputView.java | 11 +++++----- 3 files changed, 29 insertions(+), 17 deletions(-) create mode 100644 app/src/main/java/calculator/utils/StringUtils.java diff --git a/app/src/main/java/calculator/service/Calculator.java b/app/src/main/java/calculator/service/Calculator.java index 7900411c1..dbb6a0719 100644 --- a/app/src/main/java/calculator/service/Calculator.java +++ b/app/src/main/java/calculator/service/Calculator.java @@ -1,6 +1,8 @@ package calculator.service; import static calculator.entity.Operator.getOperatorWithSameSymbol; +import static calculator.utils.StringUtils.isNumeric; +import static calculator.utils.StringUtils.splitToElements; import static calculator.view.InputView.inputExpression; import static calculator.view.OutputView.showCalculationResult; import static calculator.view.OutputView.showExpressionInputMessage; @@ -12,10 +14,7 @@ public class Calculator { public void calculate() { showExpressionInputMessage(); - - String expression = inputExpression(); - int calculationResult = solve(expression); - + int calculationResult = solve(inputExpression()); showCalculationResult(calculationResult); } @@ -54,12 +53,4 @@ private void savePartialEvaluationResult(Stack operands, Stack Date: Tue, 13 Jun 2023 01:12:05 +0900 Subject: [PATCH 11/28] =?UTF-8?q?refactor:=20exception=20=ED=8C=A8?= =?UTF-8?q?=ED=82=A4=EC=A7=80=EB=A5=BC=20calculator=20=ED=8C=A8=ED=82=A4?= =?UTF-8?q?=EC=A7=80=20=ED=95=98=EC=9C=84=EB=A1=9C=20=EC=9D=B4=EB=8F=99=20?= =?UTF-8?q?-=20validation=EC=9D=84=20=EA=B0=81=20=ED=81=B4=EB=9E=98?= =?UTF-8?q?=EC=8A=A4=EC=97=90=EC=84=9C=20=EC=A7=84=ED=96=89=ED=95=98?= =?UTF-8?q?=EB=AF=80=EB=A1=9C=20validation=20=ED=8C=A8=ED=82=A4=EC=A7=80?= =?UTF-8?q?=EB=A5=BC=20=EC=A0=9C=EA=B1=B0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/entity/Menu.java | 2 +- .../{validation => }/exception/ExpressionInputException.java | 2 +- .../{validation => }/exception/MenuInputException.java | 2 +- app/src/main/java/calculator/view/InputView.java | 4 ++-- 4 files changed, 5 insertions(+), 5 deletions(-) rename app/src/main/java/calculator/{validation => }/exception/ExpressionInputException.java (78%) rename app/src/main/java/calculator/{validation => }/exception/MenuInputException.java (77%) diff --git a/app/src/main/java/calculator/entity/Menu.java b/app/src/main/java/calculator/entity/Menu.java index 45f9878f9..07aa34c08 100644 --- a/app/src/main/java/calculator/entity/Menu.java +++ b/app/src/main/java/calculator/entity/Menu.java @@ -1,6 +1,6 @@ package calculator.entity; -import calculator.validation.exception.MenuInputException; +import calculator.exception.MenuInputException; import java.util.Arrays; public enum Menu { diff --git a/app/src/main/java/calculator/validation/exception/ExpressionInputException.java b/app/src/main/java/calculator/exception/ExpressionInputException.java similarity index 78% rename from app/src/main/java/calculator/validation/exception/ExpressionInputException.java rename to app/src/main/java/calculator/exception/ExpressionInputException.java index 657862b73..7a7c30aa5 100644 --- a/app/src/main/java/calculator/validation/exception/ExpressionInputException.java +++ b/app/src/main/java/calculator/exception/ExpressionInputException.java @@ -1,4 +1,4 @@ -package calculator.validation.exception; +package calculator.exception; public class ExpressionInputException extends RuntimeException { diff --git a/app/src/main/java/calculator/validation/exception/MenuInputException.java b/app/src/main/java/calculator/exception/MenuInputException.java similarity index 77% rename from app/src/main/java/calculator/validation/exception/MenuInputException.java rename to app/src/main/java/calculator/exception/MenuInputException.java index bf33f1095..cc9905008 100644 --- a/app/src/main/java/calculator/validation/exception/MenuInputException.java +++ b/app/src/main/java/calculator/exception/MenuInputException.java @@ -1,4 +1,4 @@ -package calculator.validation.exception; +package calculator.exception; public class MenuInputException extends RuntimeException { diff --git a/app/src/main/java/calculator/view/InputView.java b/app/src/main/java/calculator/view/InputView.java index eb39719a8..5f8c81803 100644 --- a/app/src/main/java/calculator/view/InputView.java +++ b/app/src/main/java/calculator/view/InputView.java @@ -3,8 +3,8 @@ import static calculator.utils.StringUtils.isMatchingExpressionRegex; import static calculator.utils.StringUtils.isNumeric; -import calculator.validation.exception.ExpressionInputException; -import calculator.validation.exception.MenuInputException; +import calculator.exception.ExpressionInputException; +import calculator.exception.MenuInputException; import java.util.Scanner; public final class InputView { From 366e2d5c450c64f9ee475d1c5976bfe0270bfe48 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Tue, 13 Jun 2023 01:17:09 +0900 Subject: [PATCH 12/28] =?UTF-8?q?refactor:=20Menu=20=ED=81=B4=EB=9E=98?= =?UTF-8?q?=EC=8A=A4=EC=9D=98=20isQuit(),=20isCalculate()=EB=A5=BC=20?= =?UTF-8?q?=EC=9D=B8=EC=8A=A4=ED=84=B4=EC=8A=A4=20=EB=A9=94=EC=84=9C?= =?UTF-8?q?=EB=93=9C=EB=A1=9C=20=EB=B3=80=EA=B2=BD=20-=20=EB=A7=A4?= =?UTF-8?q?=EA=B0=9C=EB=B3=80=EC=88=98=EB=A5=BC=20=EB=B0=9B=EC=A7=80=20?= =?UTF-8?q?=EC=95=8A=EA=B3=A0=20this=20=ED=82=A4=EC=9B=8C=EB=93=9C?= =?UTF-8?q?=EB=A5=BC=20=EC=9D=B4=EC=9A=A9=ED=95=B4=20=EC=9D=B8=EC=8A=A4?= =?UTF-8?q?=ED=84=B4=EC=8A=A4=20=EC=9E=90=EC=8B=A0=EA=B3=BC=20=EB=A9=94?= =?UTF-8?q?=EB=89=B4=EB=A5=BC=20=EB=B9=84=EA=B5=90?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../calculator/controller/MainController.java | 6 ++---- app/src/main/java/calculator/entity/Menu.java | 16 ++++++++-------- 2 files changed, 10 insertions(+), 12 deletions(-) diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index df1200a48..b3e79afc6 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -1,8 +1,6 @@ package calculator.controller; import static calculator.entity.Menu.getSelectedMenu; -import static calculator.entity.Menu.isCalculate; -import static calculator.entity.Menu.isQuit; import static calculator.view.InputView.inputMenuNumber; import static calculator.view.OutputView.showMenu; @@ -24,7 +22,7 @@ public void run() { int menuNumber = inputMenuNumber(); Menu selectedMenu = getSelectedMenu(menuNumber); - if (isQuit(selectedMenu)) { + if (selectedMenu.isQuit()) { break; } @@ -33,7 +31,7 @@ public void run() { } private void execute(Menu selectedMenu) { - if (isCalculate(selectedMenu)) { + if (selectedMenu.isCalculate()) { calculator.calculate(); } } diff --git a/app/src/main/java/calculator/entity/Menu.java b/app/src/main/java/calculator/entity/Menu.java index 07aa34c08..a07394d56 100644 --- a/app/src/main/java/calculator/entity/Menu.java +++ b/app/src/main/java/calculator/entity/Menu.java @@ -18,14 +18,6 @@ public enum Menu { this.name = name; } - public static boolean isCalculate(Menu selectedMenu) { - return selectedMenu == Menu.CALCULATE; - } - - public static boolean isQuit(Menu selectedMenu) { - return selectedMenu == Menu.QUIT; - } - public static Menu getSelectedMenu(int selectedMenuNumber) { return Arrays.stream(Menu.values()) .filter(menu -> selectedMenuNumber == menu.getNumber()) @@ -33,6 +25,14 @@ public static Menu getSelectedMenu(int selectedMenuNumber) { .orElseThrow(() -> new MenuInputException(NOT_EXIST_MENU_MESSAGE)); } + public boolean isCalculate() { + return this == Menu.CALCULATE; + } + + public boolean isQuit() { + return this == Menu.QUIT; + } + public int getNumber() { return number; } From fcefe825c8e3ad87cd237720d8fa707a35f23273 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Tue, 13 Jun 2023 23:09:15 +0900 Subject: [PATCH 13/28] =?UTF-8?q?refactor:=20getOperatorWithSameSymbol()?= =?UTF-8?q?=EC=9D=98=20=EB=B0=98=ED=99=98=20=EB=B0=A9=EC=8B=9D=EC=9D=84=20?= =?UTF-8?q?=EA=B8=B0=EC=A1=B4=20get()=EC=97=90=EC=84=9C=20orElseThrow()?= =?UTF-8?q?=EB=A1=9C=20=EB=B3=80=EA=B2=BD=20-=20NPE=20=EB=B0=A9=EC=A7=80?= =?UTF-8?q?=EB=A5=BC=20=EC=9C=84=ED=95=B4=20=EB=8F=99=EC=9D=BC=20=EC=97=B0?= =?UTF-8?q?=EC=82=B0=EC=9E=90=EA=B0=80=20=EC=97=86=EC=9C=BC=EB=A9=B4=20?= =?UTF-8?q?=EC=98=88=EC=99=B8=20=EC=B2=98=EB=A6=AC=ED=95=98=EB=8F=84?= =?UTF-8?q?=EB=A1=9D=20=EB=B3=80=EA=B2=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/entity/Operator.java | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/app/src/main/java/calculator/entity/Operator.java b/app/src/main/java/calculator/entity/Operator.java index c77c85093..72849c851 100644 --- a/app/src/main/java/calculator/entity/Operator.java +++ b/app/src/main/java/calculator/entity/Operator.java @@ -1,5 +1,6 @@ package calculator.entity; +import calculator.exception.ExpressionInputException; import java.util.Arrays; public enum Operator { @@ -38,6 +39,8 @@ private void validateIsDivisorNotZero(int divisor) { } }; + private static final String NOT_MATCHING_ANY_SYMBOL_MESSAGE = "일치하는 연산자가 없습니다."; + private final String symbol; Operator(String symbol) { @@ -48,7 +51,7 @@ public static Operator getOperatorWithSameSymbol(String elementSymbol) { return Arrays.stream(Operator.values()) .filter(operator -> elementSymbol.equals(operator.getSymbol())) .findFirst() - .get(); + .orElseThrow(() -> new ExpressionInputException(NOT_MATCHING_ANY_SYMBOL_MESSAGE)); } public String getSymbol() { From f87f0546a74b90f2122087541bf1d42a3b123f82 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Tue, 13 Jun 2023 23:24:57 +0900 Subject: [PATCH 14/28] =?UTF-8?q?refactor:=20=ED=94=BC=EC=97=B0=EC=82=B0?= =?UTF-8?q?=EC=9E=90=202=EA=B0=9C=EC=99=80=20=EC=97=B0=EC=82=B0=EC=9E=90?= =?UTF-8?q?=201=EA=B0=9C=EB=A5=BC=20=EC=9D=B4=EC=9A=A9=ED=95=B4=20?= =?UTF-8?q?=EA=B3=84=EC=82=B0=ED=95=98=EB=8A=94=20=EB=A1=9C=EC=A7=81?= =?UTF-8?q?=EC=9D=84=20=EB=A9=94=EC=84=9C=EB=93=9C=EB=A1=9C=20=EB=B6=84?= =?UTF-8?q?=EB=A6=AC=20-=20savePartialEvaluationResult()=EC=9D=98=20?= =?UTF-8?q?=EC=B1=85=EC=9E=84=EC=9D=84=20=EC=A4=84=EC=9D=B4=EA=B8=B0=20?= =?UTF-8?q?=EC=9C=84=ED=95=A8?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../java/calculator/controller/MainController.java | 2 +- .../main/java/calculator/service/Calculator.java | 14 +++++++++++--- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index b3e79afc6..7aabbf4f8 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -32,7 +32,7 @@ public void run() { private void execute(Menu selectedMenu) { if (selectedMenu.isCalculate()) { - calculator.calculate(); + calculator.execute(); } } } diff --git a/app/src/main/java/calculator/service/Calculator.java b/app/src/main/java/calculator/service/Calculator.java index dbb6a0719..72d513a94 100644 --- a/app/src/main/java/calculator/service/Calculator.java +++ b/app/src/main/java/calculator/service/Calculator.java @@ -12,13 +12,16 @@ public class Calculator { - public void calculate() { + public void execute() { showExpressionInputMessage(); - int calculationResult = solve(inputExpression()); + + String expression = inputExpression(); + int calculationResult = calculate(expression); + showCalculationResult(calculationResult); } - private int solve(String expression) { + private int calculate(String expression) { String[] elements = splitToElements(expression); Stack operands = new Stack<>(); Stack operators = new Stack<>(); @@ -46,6 +49,11 @@ private void savePartialEvaluationResult(Stack operands, Stack operands, Stack operators, + String element) { Operator operator = operators.pop(); int operand1 = operands.pop(); int operand2 = Integer.parseInt(element); From 74abb5d325e9f2a48a60508d0be15402a9edc363 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Tue, 13 Jun 2023 23:30:14 +0900 Subject: [PATCH 15/28] =?UTF-8?q?refactor:=20App=EC=97=90=EC=84=9C=20MainC?= =?UTF-8?q?ontroller,=20Calculator=20=EC=9D=B8=EC=8A=A4=ED=84=B4=EC=8A=A4?= =?UTF-8?q?=EB=A5=BC=20=EB=B3=80=EC=88=98=EB=A1=9C=20=ED=95=A0=EB=8B=B9=20?= =?UTF-8?q?-=20=EA=B0=80=EB=8F=85=EC=84=B1=20=EC=B8=A1=EB=A9=B4=EC=97=90?= =?UTF-8?q?=EC=84=9C=20=EB=B3=80=EC=88=98=EB=A1=9C=20=ED=95=A0=EB=8B=B9?= =?UTF-8?q?=ED=95=98=EC=97=AC=20run()=20=EB=A9=94=EC=84=9C=EB=93=9C=20?= =?UTF-8?q?=EC=8B=A4=ED=96=89?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/App.java | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java index cc003b8f1..58199a854 100644 --- a/app/src/main/java/calculator/App.java +++ b/app/src/main/java/calculator/App.java @@ -9,8 +9,11 @@ public class App { public static void main(String[] args) { + Calculator calculator = new Calculator(); + MainController mainController = new MainController(calculator); + try { - new MainController(new Calculator()).run(); + mainController.run(); } catch (Exception e) { printWithLineBreak(e.getMessage()); } finally { From 4ee0ce01896343e5770211aabc73e8af09226471 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Wed, 14 Jun 2023 01:18:08 +0900 Subject: [PATCH 16/28] =?UTF-8?q?feat:=20=EA=B3=84=EC=82=B0=EC=8B=9D?= =?UTF-8?q?=EC=9D=84=20=EB=B3=84=EB=8F=84=20=EC=A0=80=EC=9E=A5=EC=86=8C?= =?UTF-8?q?=EC=97=90=20=EC=A0=80=EC=9E=A5=ED=95=98=EB=8A=94=20=EA=B8=B0?= =?UTF-8?q?=EB=8A=A5=20=EC=B6=94=EA=B0=80?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/App.java | 4 +++- .../main/java/calculator/service/Calculator.java | 11 +++++++++++ .../java/calculator/storage/HistoryStorage.java | 14 ++++++++++++++ .../main/java/calculator/utils/StringUtils.java | 5 +++++ 4 files changed, 33 insertions(+), 1 deletion(-) create mode 100644 app/src/main/java/calculator/storage/HistoryStorage.java diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java index 58199a854..d406a5aea 100644 --- a/app/src/main/java/calculator/App.java +++ b/app/src/main/java/calculator/App.java @@ -5,11 +5,13 @@ import calculator.controller.MainController; import calculator.service.Calculator; +import calculator.storage.HistoryStorage; public class App { public static void main(String[] args) { - Calculator calculator = new Calculator(); + HistoryStorage historyStorage = new HistoryStorage(); + Calculator calculator = new Calculator(historyStorage); MainController mainController = new MainController(calculator); try { diff --git a/app/src/main/java/calculator/service/Calculator.java b/app/src/main/java/calculator/service/Calculator.java index 72d513a94..a9866f38d 100644 --- a/app/src/main/java/calculator/service/Calculator.java +++ b/app/src/main/java/calculator/service/Calculator.java @@ -2,22 +2,33 @@ import static calculator.entity.Operator.getOperatorWithSameSymbol; import static calculator.utils.StringUtils.isNumeric; +import static calculator.utils.StringUtils.makeHistory; import static calculator.utils.StringUtils.splitToElements; import static calculator.view.InputView.inputExpression; import static calculator.view.OutputView.showCalculationResult; import static calculator.view.OutputView.showExpressionInputMessage; import calculator.entity.Operator; +import calculator.storage.HistoryStorage; import java.util.Stack; public class Calculator { + private final HistoryStorage historyStorage; + + public Calculator(HistoryStorage historyStorage) { + this.historyStorage = historyStorage; + } + public void execute() { showExpressionInputMessage(); String expression = inputExpression(); int calculationResult = calculate(expression); + String history = makeHistory(expression, calculationResult); + historyStorage.save(history); + showCalculationResult(calculationResult); } diff --git a/app/src/main/java/calculator/storage/HistoryStorage.java b/app/src/main/java/calculator/storage/HistoryStorage.java new file mode 100644 index 000000000..ba532d4d6 --- /dev/null +++ b/app/src/main/java/calculator/storage/HistoryStorage.java @@ -0,0 +1,14 @@ +package calculator.storage; + +import java.util.ArrayList; +import java.util.List; + +public class HistoryStorage { + + private final List storage = new ArrayList<>(); + + public void save(String history) { + storage.add(history); + System.out.println(storage); + } +} diff --git a/app/src/main/java/calculator/utils/StringUtils.java b/app/src/main/java/calculator/utils/StringUtils.java index bfd06b467..4ef2ddf6c 100644 --- a/app/src/main/java/calculator/utils/StringUtils.java +++ b/app/src/main/java/calculator/utils/StringUtils.java @@ -5,6 +5,7 @@ public class StringUtils { private static final String NUMERIC_REGEX = "\\d+"; private static final String EXPRESSION_REGEX = "^\\d+(\\s[+\\-*/]\\s\\d+)*"; private static final String EMPTY = " "; + private static final String EQUAL = " = "; public static boolean isNumeric(String numericString) { return numericString.matches(NUMERIC_REGEX); @@ -17,4 +18,8 @@ public static boolean isMatchingExpressionRegex(String expression) { public static String[] splitToElements(String expression) { return expression.split(EMPTY); } + + public static String makeHistory(String expression, int calculationResult) { + return expression + EQUAL + calculationResult; + } } From f95965c985d3a9f315037cf45156cb69d73b8fda Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Wed, 14 Jun 2023 01:39:58 +0900 Subject: [PATCH 17/28] =?UTF-8?q?feat:=20=EC=A0=84=EC=B2=B4=20=EA=B3=84?= =?UTF-8?q?=EC=82=B0=20=EB=82=B4=EC=97=AD=EC=9D=84=20=EC=A1=B0=ED=9A=8C?= =?UTF-8?q?=ED=95=98=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20=EC=B6=94=EA=B0=80=20?= =?UTF-8?q?-=20=EA=B3=84=EC=82=B0=20=EB=82=B4=EC=97=AD=EC=9D=B4=20?= =?UTF-8?q?=EC=97=86=EB=8A=94=20=EA=B2=BD=EC=9A=B0=20=EB=82=B4=EC=97=AD=20?= =?UTF-8?q?=EB=8C=80=EC=8B=A0=20=EB=B3=84=EB=8F=84=EC=9D=98=20=EB=AC=B8?= =?UTF-8?q?=EA=B5=AC=20=EC=B6=9C=EB=A0=A5?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/App.java | 4 ++- .../calculator/controller/MainController.java | 10 ++++++- app/src/main/java/calculator/entity/Menu.java | 4 +++ .../calculator/service/HistoryReader.java | 29 +++++++++++++++++++ .../calculator/storage/HistoryStorage.java | 5 +++- .../main/java/calculator/view/OutputView.java | 12 ++++++++ 6 files changed, 61 insertions(+), 3 deletions(-) create mode 100644 app/src/main/java/calculator/service/HistoryReader.java diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java index d406a5aea..c08231771 100644 --- a/app/src/main/java/calculator/App.java +++ b/app/src/main/java/calculator/App.java @@ -5,14 +5,16 @@ import calculator.controller.MainController; import calculator.service.Calculator; +import calculator.service.HistoryReader; import calculator.storage.HistoryStorage; public class App { public static void main(String[] args) { HistoryStorage historyStorage = new HistoryStorage(); + HistoryReader historyReader = new HistoryReader(historyStorage); Calculator calculator = new Calculator(historyStorage); - MainController mainController = new MainController(calculator); + MainController mainController = new MainController(historyReader, calculator); try { mainController.run(); diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index 7aabbf4f8..10bf7ac21 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -6,12 +6,15 @@ import calculator.entity.Menu; import calculator.service.Calculator; +import calculator.service.HistoryReader; public class MainController { + private final HistoryReader historyReader; private final Calculator calculator; - public MainController(Calculator calculator) { + public MainController(HistoryReader historyReader, Calculator calculator) { + this.historyReader = historyReader; this.calculator = calculator; } @@ -31,6 +34,11 @@ public void run() { } private void execute(Menu selectedMenu) { + if (selectedMenu.isReadHistory()) { + historyReader.execute(); + return; + } + if (selectedMenu.isCalculate()) { calculator.execute(); } diff --git a/app/src/main/java/calculator/entity/Menu.java b/app/src/main/java/calculator/entity/Menu.java index a07394d56..e2d8e8090 100644 --- a/app/src/main/java/calculator/entity/Menu.java +++ b/app/src/main/java/calculator/entity/Menu.java @@ -25,6 +25,10 @@ public static Menu getSelectedMenu(int selectedMenuNumber) { .orElseThrow(() -> new MenuInputException(NOT_EXIST_MENU_MESSAGE)); } + public boolean isReadHistory() { + return this == Menu.READ_HISTORY; + } + public boolean isCalculate() { return this == Menu.CALCULATE; } diff --git a/app/src/main/java/calculator/service/HistoryReader.java b/app/src/main/java/calculator/service/HistoryReader.java new file mode 100644 index 000000000..77f0c3e83 --- /dev/null +++ b/app/src/main/java/calculator/service/HistoryReader.java @@ -0,0 +1,29 @@ +package calculator.service; + +import static calculator.view.OutputView.showAllHistory; +import static calculator.view.OutputView.showEmptyHistoryMessage; + +import calculator.storage.HistoryStorage; + +public class HistoryReader { + + private static final int EMPTY_LENGTH = 0; + + private final HistoryStorage historyStorage; + + public HistoryReader(HistoryStorage historyStorage) { + this.historyStorage = historyStorage; + } + + public void execute() { + String[] allHistory = historyStorage.readAllHistory(); + + if (allHistory.length == EMPTY_LENGTH) { + showEmptyHistoryMessage(); + + return; + } + + showAllHistory(allHistory); + } +} diff --git a/app/src/main/java/calculator/storage/HistoryStorage.java b/app/src/main/java/calculator/storage/HistoryStorage.java index ba532d4d6..78e808eaf 100644 --- a/app/src/main/java/calculator/storage/HistoryStorage.java +++ b/app/src/main/java/calculator/storage/HistoryStorage.java @@ -9,6 +9,9 @@ public class HistoryStorage { public void save(String history) { storage.add(history); - System.out.println(storage); + } + + public String[] readAllHistory() { + return storage.toArray(String[]::new); } } diff --git a/app/src/main/java/calculator/view/OutputView.java b/app/src/main/java/calculator/view/OutputView.java index b71efca17..6e5506d43 100644 --- a/app/src/main/java/calculator/view/OutputView.java +++ b/app/src/main/java/calculator/view/OutputView.java @@ -8,6 +8,7 @@ public final class OutputView { private static final String EXPRESSION_INPUT_MESSAGE = "계산식을 입력하세요(자연수, 사칙연산, 공백 기준) : "; private static final String QUIT_MESSAGE = "프로그램을 종료합니다."; private static final String CALCULATION_RESULT_MESSAGE = "계산 결과 : "; + private static final String EMPTY_HISTORY_MESSAGE = "계산 내역이 존재하지 않습니다."; private OutputView() { } @@ -24,6 +25,7 @@ public static void showExpressionInputMessage() { } public static void showQuitMessage() { + printWithLineBreak(); printWithLineBreak(QUIT_MESSAGE); } @@ -32,6 +34,16 @@ public static void showCalculationResult(int calculationResult) { printWithLineBreak(); } + public static void showEmptyHistoryMessage() { + printWithLineBreak(EMPTY_HISTORY_MESSAGE); + printWithLineBreak(); + } + + public static void showAllHistory(String[] allHistory) { + printMultiple(allHistory); + printWithLineBreak(); + } + public static void printWithLineBreak() { System.out.println(); } From 8282ea6d470359e5b57374d187f308e18ecabf3f Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Wed, 14 Jun 2023 12:40:07 +0900 Subject: [PATCH 18/28] =?UTF-8?q?refactor:=20run()=20=EB=A9=94=EC=84=9C?= =?UTF-8?q?=EB=93=9C=EC=97=90=20isRunning=20=ED=94=8C=EB=9E=98=EA=B7=B8?= =?UTF-8?q?=EB=A5=BC=20=EC=B6=94=EA=B0=80=ED=95=98=EC=97=AC,=20if=EB=AC=B8?= =?UTF-8?q?=20=EC=A0=9C=EA=B1=B0?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../main/java/calculator/controller/MainController.java | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index 10bf7ac21..b3f8ea2a6 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -19,15 +19,15 @@ public MainController(HistoryReader historyReader, Calculator calculator) { } public void run() { - while (true) { + boolean isRunning = true; + + while (isRunning) { showMenu(); int menuNumber = inputMenuNumber(); Menu selectedMenu = getSelectedMenu(menuNumber); - if (selectedMenu.isQuit()) { - break; - } + isRunning = !selectedMenu.isQuit(); execute(selectedMenu); } From 17f04b22ab78c1a76e310716e4c55b904e9b8b9a Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Wed, 14 Jun 2023 23:18:22 +0900 Subject: [PATCH 19/28] =?UTF-8?q?refactor:=20HistoryReader=20=ED=81=B4?= =?UTF-8?q?=EB=9E=98=EC=8A=A4=20=EC=A0=9C=EA=B1=B0=20=ED=9B=84=20=EC=A7=81?= =?UTF-8?q?=EC=A0=91=20HistoryStorage=EC=97=90=EC=84=9C=20=EB=82=B4?= =?UTF-8?q?=EC=97=AD=20=EC=A1=B0=ED=9A=8C=20-=20=EA=B8=B0=EC=A1=B4=20Histo?= =?UTF-8?q?ryReader=EB=8A=94=20=EB=B9=84=EC=A6=88=EB=8B=88=EC=8A=A4=20?= =?UTF-8?q?=EB=A1=9C=EC=A7=81=20=EC=97=86=EC=9D=B4=20=EB=8B=A8=EC=88=9C=20?= =?UTF-8?q?View=20=EA=B8=B0=EB=8A=A5=EC=9D=84=20=EB=8B=B4=EB=8B=B9=20-=20H?= =?UTF-8?q?istoryReader=EC=9D=98=20=EB=A1=9C=EC=A7=81=EC=9D=84=20OutputVie?= =?UTF-8?q?w=EB=A1=9C=20=EC=9D=B4=EA=B4=80=ED=95=98=EA=B3=A0,=20MainContro?= =?UTF-8?q?ller=EC=97=90=EC=84=9C=20=EB=8B=A8=EC=88=9C=20=ED=98=B8?= =?UTF-8?q?=EC=B6=9C?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/App.java | 4 +-- .../calculator/controller/MainController.java | 13 +++++---- .../calculator/service/HistoryReader.java | 29 ------------------- .../main/java/calculator/view/OutputView.java | 13 +++++---- 4 files changed, 17 insertions(+), 42 deletions(-) delete mode 100644 app/src/main/java/calculator/service/HistoryReader.java diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java index c08231771..387306d53 100644 --- a/app/src/main/java/calculator/App.java +++ b/app/src/main/java/calculator/App.java @@ -5,16 +5,14 @@ import calculator.controller.MainController; import calculator.service.Calculator; -import calculator.service.HistoryReader; import calculator.storage.HistoryStorage; public class App { public static void main(String[] args) { HistoryStorage historyStorage = new HistoryStorage(); - HistoryReader historyReader = new HistoryReader(historyStorage); Calculator calculator = new Calculator(historyStorage); - MainController mainController = new MainController(historyReader, calculator); + MainController mainController = new MainController(historyStorage, calculator); try { mainController.run(); diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index b3f8ea2a6..7c2debe85 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -2,19 +2,20 @@ import static calculator.entity.Menu.getSelectedMenu; import static calculator.view.InputView.inputMenuNumber; +import static calculator.view.OutputView.showAllHistory; import static calculator.view.OutputView.showMenu; import calculator.entity.Menu; import calculator.service.Calculator; -import calculator.service.HistoryReader; +import calculator.storage.HistoryStorage; public class MainController { - private final HistoryReader historyReader; + private final HistoryStorage historyStorage; private final Calculator calculator; - public MainController(HistoryReader historyReader, Calculator calculator) { - this.historyReader = historyReader; + public MainController(HistoryStorage historyStorage, Calculator calculator) { + this.historyStorage = historyStorage; this.calculator = calculator; } @@ -35,7 +36,9 @@ public void run() { private void execute(Menu selectedMenu) { if (selectedMenu.isReadHistory()) { - historyReader.execute(); + String[] allHistory = historyStorage.readAllHistory(); + showAllHistory(allHistory); + return; } diff --git a/app/src/main/java/calculator/service/HistoryReader.java b/app/src/main/java/calculator/service/HistoryReader.java deleted file mode 100644 index 77f0c3e83..000000000 --- a/app/src/main/java/calculator/service/HistoryReader.java +++ /dev/null @@ -1,29 +0,0 @@ -package calculator.service; - -import static calculator.view.OutputView.showAllHistory; -import static calculator.view.OutputView.showEmptyHistoryMessage; - -import calculator.storage.HistoryStorage; - -public class HistoryReader { - - private static final int EMPTY_LENGTH = 0; - - private final HistoryStorage historyStorage; - - public HistoryReader(HistoryStorage historyStorage) { - this.historyStorage = historyStorage; - } - - public void execute() { - String[] allHistory = historyStorage.readAllHistory(); - - if (allHistory.length == EMPTY_LENGTH) { - showEmptyHistoryMessage(); - - return; - } - - showAllHistory(allHistory); - } -} diff --git a/app/src/main/java/calculator/view/OutputView.java b/app/src/main/java/calculator/view/OutputView.java index 6e5506d43..b4abea1ea 100644 --- a/app/src/main/java/calculator/view/OutputView.java +++ b/app/src/main/java/calculator/view/OutputView.java @@ -9,6 +9,7 @@ public final class OutputView { private static final String QUIT_MESSAGE = "프로그램을 종료합니다."; private static final String CALCULATION_RESULT_MESSAGE = "계산 결과 : "; private static final String EMPTY_HISTORY_MESSAGE = "계산 내역이 존재하지 않습니다."; + private static final int EMPTY_LENGTH = 0; private OutputView() { } @@ -34,12 +35,14 @@ public static void showCalculationResult(int calculationResult) { printWithLineBreak(); } - public static void showEmptyHistoryMessage() { - printWithLineBreak(EMPTY_HISTORY_MESSAGE); - printWithLineBreak(); - } - public static void showAllHistory(String[] allHistory) { + if (allHistory.length == EMPTY_LENGTH) { + printWithLineBreak(EMPTY_HISTORY_MESSAGE); + printWithLineBreak(); + + return; + } + printMultiple(allHistory); printWithLineBreak(); } From afbc5b8268e1aa40ca0d0d230027cc316af42a2a Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 15 Jun 2023 04:08:57 +0900 Subject: [PATCH 20/28] =?UTF-8?q?refactor:=20Expression=20=ED=81=B4?= =?UTF-8?q?=EB=9E=98=EC=8A=A4=EB=A5=BC=20=EC=83=88=EB=A1=9C=20=EC=A0=95?= =?UTF-8?q?=EC=9D=98=ED=95=98=EC=97=AC,=20=EB=8B=A8=EC=9C=84=20=EA=B3=84?= =?UTF-8?q?=EC=82=B0=20=EB=A1=9C=EC=A7=81=EC=9D=84=20=EC=9D=B4=EA=B4=80=20?= =?UTF-8?q?-=20=EC=97=B0=EC=82=B0=EC=9E=90=201=EA=B0=9C,=20=ED=94=BC?= =?UTF-8?q?=EC=97=B0=EC=82=B0=EC=9E=90=202=EA=B0=9C=EB=A1=9C=20=EC=9D=B4?= =?UTF-8?q?=EB=A3=A8=EC=96=B4=EC=A7=84=20Expression=20=ED=81=B4=EB=9E=98?= =?UTF-8?q?=EC=8A=A4=EB=A5=BC=20=EC=A0=95=EC=9D=98=20-=20Calculator?= =?UTF-8?q?=EB=8A=94=20Expression=EC=9D=84=20=EB=A7=8C=EB=93=9C=EB=8A=94?= =?UTF-8?q?=20=EC=97=AD=ED=95=A0=EB=A7=8C=20=ED=95=98=EA=B3=A0,=20?= =?UTF-8?q?=EA=B3=84=EC=82=B0=EC=9D=80=20Expression=EC=97=90=EC=84=9C=20?= =?UTF-8?q?=EC=8B=A4=ED=96=89?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../java/calculator/entity/Expression.java | 18 +++++++++++ .../java/calculator/service/Calculator.java | 30 +++++++++---------- 2 files changed, 32 insertions(+), 16 deletions(-) create mode 100644 app/src/main/java/calculator/entity/Expression.java diff --git a/app/src/main/java/calculator/entity/Expression.java b/app/src/main/java/calculator/entity/Expression.java new file mode 100644 index 000000000..0cbb6854c --- /dev/null +++ b/app/src/main/java/calculator/entity/Expression.java @@ -0,0 +1,18 @@ +package calculator.entity; + +public class Expression { + + private final Operator operator; + private final int operand1; + private final int operand2; + + public Expression(Operator operator, int operand1, int operand2) { + this.operator = operator; + this.operand1 = operand1; + this.operand2 = operand2; + } + + public int evaluate() { + return operator.evaluate(operand1, operand2); + } +} diff --git a/app/src/main/java/calculator/service/Calculator.java b/app/src/main/java/calculator/service/Calculator.java index a9866f38d..ababdeef4 100644 --- a/app/src/main/java/calculator/service/Calculator.java +++ b/app/src/main/java/calculator/service/Calculator.java @@ -8,8 +8,10 @@ import static calculator.view.OutputView.showCalculationResult; import static calculator.view.OutputView.showExpressionInputMessage; +import calculator.entity.Expression; import calculator.entity.Operator; import calculator.storage.HistoryStorage; +import java.util.Optional; import java.util.Stack; public class Calculator { @@ -23,53 +25,49 @@ public Calculator(HistoryStorage historyStorage) { public void execute() { showExpressionInputMessage(); - String expression = inputExpression(); - int calculationResult = calculate(expression); + String infixExpression = inputExpression(); + int calculationResult = calculate(infixExpression); - String history = makeHistory(expression, calculationResult); + String history = makeHistory(infixExpression, calculationResult); historyStorage.save(history); showCalculationResult(calculationResult); } - private int calculate(String expression) { - String[] elements = splitToElements(expression); + private int calculate(String infixExpression) { + String[] elements = splitToElements(infixExpression); Stack operands = new Stack<>(); Stack operators = new Stack<>(); for (String element : elements) { - savePartialEvaluationResult(operands, operators, element); + makeExpression(operands, operators, element) + .map(Expression::evaluate) + .ifPresent(operands::push); } return operands.pop(); } - private void savePartialEvaluationResult(Stack operands, Stack operators, + private Optional makeExpression(Stack operands, Stack operators, String element) { if (!isNumeric(element)) { Operator operator = getOperatorWithSameSymbol(element); operators.push(operator); - return; + return Optional.empty(); } if (operators.isEmpty()) { int operand = Integer.parseInt(element); operands.push(operand); - return; + return Optional.empty(); } - pushEvaluationResult(operands, operators, element); - } - - private void pushEvaluationResult(Stack operands, Stack operators, - String element) { Operator operator = operators.pop(); int operand1 = operands.pop(); int operand2 = Integer.parseInt(element); - int evaluationResult = operator.evaluate(operand1, operand2); - operands.push(evaluationResult); + return Optional.of(new Expression(operator, operand1, operand2)); } } From a72b9eb14eae57a6bae5797cdf8981bb3637083c Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 15 Jun 2023 04:22:01 +0900 Subject: [PATCH 21/28] =?UTF-8?q?style:=20Calculator=EC=9D=98=20execute=20?= =?UTF-8?q?=EB=A9=94=EC=84=9C=EB=93=9C=EB=AA=85=EC=9D=84=20calculate?= =?UTF-8?q?=EB=A1=9C=20=EB=B3=80=EA=B2=BD=20-=20=EA=B3=84=EC=82=B0?= =?UTF-8?q?=EA=B8=B0=EC=9D=98=20=ED=96=89=EC=9C=84=EC=9D=B8=20=EA=B3=84?= =?UTF-8?q?=EC=82=B0=ED=95=98=EB=8B=A4=EC=97=90=20=EC=B4=88=EC=A0=90?= =?UTF-8?q?=EC=9D=84=20=EB=A7=9E=EC=B6=94=EC=96=B4=20=EB=A9=94=EC=84=9C?= =?UTF-8?q?=EB=93=9C=EB=AA=85=20=EB=B3=80=EA=B2=BD=20-=20Calculator=20?= =?UTF-8?q?=EB=82=B4=EC=9D=98=20calculate=20=EB=A9=94=EC=84=9C=EB=93=9C?= =?UTF-8?q?=EB=8A=94=20evaluate=EB=A1=9C=20=EB=A9=94=EC=84=9C=EB=93=9C?= =?UTF-8?q?=EB=AA=85=20=EB=B3=80=EA=B2=BD?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../java/calculator/controller/MainController.java | 2 +- app/src/main/java/calculator/service/Calculator.java | 10 +++++----- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index 7c2debe85..582cf5347 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -43,7 +43,7 @@ private void execute(Menu selectedMenu) { } if (selectedMenu.isCalculate()) { - calculator.execute(); + calculator.calculate(); } } } diff --git a/app/src/main/java/calculator/service/Calculator.java b/app/src/main/java/calculator/service/Calculator.java index ababdeef4..72e6a6606 100644 --- a/app/src/main/java/calculator/service/Calculator.java +++ b/app/src/main/java/calculator/service/Calculator.java @@ -22,19 +22,19 @@ public Calculator(HistoryStorage historyStorage) { this.historyStorage = historyStorage; } - public void execute() { + public void calculate() { showExpressionInputMessage(); String infixExpression = inputExpression(); - int calculationResult = calculate(infixExpression); + int result = evaluate(infixExpression); - String history = makeHistory(infixExpression, calculationResult); + String history = makeHistory(infixExpression, result); historyStorage.save(history); - showCalculationResult(calculationResult); + showCalculationResult(result); } - private int calculate(String infixExpression) { + private int evaluate(String infixExpression) { String[] elements = splitToElements(infixExpression); Stack operands = new Stack<>(); Stack operators = new Stack<>(); From ece675e397a28b6ec61c3034172d844a6457e6fe Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 15 Jun 2023 16:21:54 +0900 Subject: [PATCH 22/28] =?UTF-8?q?refactor:=20Calculator=EC=97=90=EC=84=9C?= =?UTF-8?q?=20View=20=ED=98=B8=EC=B6=9C=ED=95=98=EB=8A=94=20=EB=B6=80?= =?UTF-8?q?=EB=B6=84=EC=9D=84=20=EB=B6=84=EB=A6=AC=20-=20Calculator?= =?UTF-8?q?=EB=8A=94=20=EC=8B=9D=EC=97=90=20=EB=8C=80=ED=95=9C=20=EA=B2=B0?= =?UTF-8?q?=EA=B3=BC=EB=A5=BC=20=EA=B3=84=EC=82=B0=ED=95=98=EB=8A=94=20?= =?UTF-8?q?=EC=B1=85=EC=9E=84=EB=A7=8C=20=ED=95=A0=20=EC=88=98=20=EC=9E=88?= =?UTF-8?q?=EB=8F=84=EB=A1=9D=20View=20=EB=B6=80=EB=B6=84=EC=9D=80=20?= =?UTF-8?q?=EC=83=81=EC=9C=84=EB=A1=9C=20=EB=B6=84=EB=A6=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../calculator/controller/MainController.java | 9 ++++++++- .../java/calculator/service/Calculator.java | 18 ++++++------------ 2 files changed, 14 insertions(+), 13 deletions(-) diff --git a/app/src/main/java/calculator/controller/MainController.java b/app/src/main/java/calculator/controller/MainController.java index 582cf5347..1d08fc2b7 100644 --- a/app/src/main/java/calculator/controller/MainController.java +++ b/app/src/main/java/calculator/controller/MainController.java @@ -1,8 +1,11 @@ package calculator.controller; import static calculator.entity.Menu.getSelectedMenu; +import static calculator.view.InputView.inputExpression; import static calculator.view.InputView.inputMenuNumber; import static calculator.view.OutputView.showAllHistory; +import static calculator.view.OutputView.showCalculationResult; +import static calculator.view.OutputView.showExpressionInputMessage; import static calculator.view.OutputView.showMenu; import calculator.entity.Menu; @@ -43,7 +46,11 @@ private void execute(Menu selectedMenu) { } if (selectedMenu.isCalculate()) { - calculator.calculate(); + showExpressionInputMessage(); + String expression = inputExpression(); + + int result = calculator.calculate(expression); + showCalculationResult(result); } } } diff --git a/app/src/main/java/calculator/service/Calculator.java b/app/src/main/java/calculator/service/Calculator.java index 72e6a6606..13024c578 100644 --- a/app/src/main/java/calculator/service/Calculator.java +++ b/app/src/main/java/calculator/service/Calculator.java @@ -4,9 +4,6 @@ import static calculator.utils.StringUtils.isNumeric; import static calculator.utils.StringUtils.makeHistory; import static calculator.utils.StringUtils.splitToElements; -import static calculator.view.InputView.inputExpression; -import static calculator.view.OutputView.showCalculationResult; -import static calculator.view.OutputView.showExpressionInputMessage; import calculator.entity.Expression; import calculator.entity.Operator; @@ -22,20 +19,17 @@ public Calculator(HistoryStorage historyStorage) { this.historyStorage = historyStorage; } - public void calculate() { - showExpressionInputMessage(); + public int calculate(String expression) { + int result = evaluate(expression); - String infixExpression = inputExpression(); - int result = evaluate(infixExpression); - - String history = makeHistory(infixExpression, result); + String history = makeHistory(expression, result); historyStorage.save(history); - showCalculationResult(result); + return result; } - private int evaluate(String infixExpression) { - String[] elements = splitToElements(infixExpression); + private int evaluate(String expression) { + String[] elements = splitToElements(expression); Stack operands = new Stack<>(); Stack operators = new Stack<>(); From 767e99fd7e3168bb42aca7f49bca79a434df8a47 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 15 Jun 2023 18:58:21 +0900 Subject: [PATCH 23/28] =?UTF-8?q?refactor:=20=ED=9B=84=EC=9C=84=EC=97=B0?= =?UTF-8?q?=EC=82=B0=20=EA=B8=B0=EB=8A=A5=20=EC=B6=94=EA=B0=80=EB=A5=BC=20?= =?UTF-8?q?=EC=9C=84=ED=95=B4,=20=ED=91=9C=EA=B8=B0=EC=8B=9D=20=EC=9E=90?= =?UTF-8?q?=EC=B2=B4=EB=A5=BC=20=EC=83=81=EC=9C=84=20=EC=9D=B8=ED=84=B0?= =?UTF-8?q?=ED=8E=98=EC=9D=B4=EC=8A=A4=EB=A1=9C=20=EC=B6=94=EC=83=81?= =?UTF-8?q?=ED=99=94=20-=20InfixNotation,=20PostfixNotation=20=EA=B5=AC?= =?UTF-8?q?=ED=98=84=EC=B2=B4=EB=A5=BC=20=ED=86=B5=ED=95=B4=20=EC=97=AC?= =?UTF-8?q?=EB=9F=AC=20=ED=91=9C=EA=B8=B0=EC=8B=9D=EC=9D=84=20=EC=A7=80?= =?UTF-8?q?=EC=9B=90=20=EC=98=88=EC=A0=95?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/App.java | 5 ++- .../java/calculator/entity/InfixNotation.java | 40 +++++++++++++++++++ .../main/java/calculator/entity/Notation.java | 12 ++++++ .../java/calculator/service/Calculator.java | 40 ++++--------------- 4 files changed, 64 insertions(+), 33 deletions(-) create mode 100644 app/src/main/java/calculator/entity/InfixNotation.java create mode 100644 app/src/main/java/calculator/entity/Notation.java diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java index 387306d53..1fad00a2a 100644 --- a/app/src/main/java/calculator/App.java +++ b/app/src/main/java/calculator/App.java @@ -4,6 +4,8 @@ import static calculator.view.OutputView.showQuitMessage; import calculator.controller.MainController; +import calculator.entity.InfixNotation; +import calculator.entity.Notation; import calculator.service.Calculator; import calculator.storage.HistoryStorage; @@ -11,7 +13,8 @@ public class App { public static void main(String[] args) { HistoryStorage historyStorage = new HistoryStorage(); - Calculator calculator = new Calculator(historyStorage); + Notation notation = new InfixNotation(); + Calculator calculator = new Calculator(historyStorage, notation); MainController mainController = new MainController(historyStorage, calculator); try { diff --git a/app/src/main/java/calculator/entity/InfixNotation.java b/app/src/main/java/calculator/entity/InfixNotation.java new file mode 100644 index 000000000..56ecb2408 --- /dev/null +++ b/app/src/main/java/calculator/entity/InfixNotation.java @@ -0,0 +1,40 @@ +package calculator.entity; + +import static calculator.entity.Operator.getOperatorWithSameSymbol; +import static calculator.utils.StringUtils.isNumeric; +import static calculator.utils.StringUtils.splitToElements; + +import java.util.Optional; +import java.util.Stack; + +public class InfixNotation implements Notation { + + @Override + public String[] makeElements(String expression) { + return splitToElements(expression); + } + + @Override + public Optional makeExpression(Stack operands, Stack operators, + String element) { + if (!isNumeric(element)) { + Operator operator = getOperatorWithSameSymbol(element); + operators.push(operator); + + return Optional.empty(); + } + + if (operators.isEmpty()) { + int operand = Integer.parseInt(element); + operands.push(operand); + + return Optional.empty(); + } + + Operator operator = operators.pop(); + int operand1 = operands.pop(); + int operand2 = Integer.parseInt(element); + + return Optional.of(new Expression(operator, operand1, operand2)); + } +} diff --git a/app/src/main/java/calculator/entity/Notation.java b/app/src/main/java/calculator/entity/Notation.java new file mode 100644 index 000000000..db3cf22ae --- /dev/null +++ b/app/src/main/java/calculator/entity/Notation.java @@ -0,0 +1,12 @@ +package calculator.entity; + +import java.util.Optional; +import java.util.Stack; + +public interface Notation { + + String[] makeElements(String expression); + + Optional makeExpression(Stack operands, Stack operators, + String element); +} diff --git a/app/src/main/java/calculator/service/Calculator.java b/app/src/main/java/calculator/service/Calculator.java index 13024c578..7e0d679bb 100644 --- a/app/src/main/java/calculator/service/Calculator.java +++ b/app/src/main/java/calculator/service/Calculator.java @@ -1,26 +1,26 @@ package calculator.service; -import static calculator.entity.Operator.getOperatorWithSameSymbol; -import static calculator.utils.StringUtils.isNumeric; import static calculator.utils.StringUtils.makeHistory; -import static calculator.utils.StringUtils.splitToElements; import calculator.entity.Expression; +import calculator.entity.Notation; import calculator.entity.Operator; import calculator.storage.HistoryStorage; -import java.util.Optional; import java.util.Stack; public class Calculator { private final HistoryStorage historyStorage; + private final Notation notation; - public Calculator(HistoryStorage historyStorage) { + public Calculator(HistoryStorage historyStorage, Notation notation) { this.historyStorage = historyStorage; + this.notation = notation; } public int calculate(String expression) { - int result = evaluate(expression); + String[] elements = notation.makeElements(expression); + int result = evaluate(elements); String history = makeHistory(expression, result); historyStorage.save(history); @@ -28,40 +28,16 @@ public int calculate(String expression) { return result; } - private int evaluate(String expression) { - String[] elements = splitToElements(expression); + private int evaluate(String[] elements) { Stack operands = new Stack<>(); Stack operators = new Stack<>(); for (String element : elements) { - makeExpression(operands, operators, element) + notation.makeExpression(operands, operators, element) .map(Expression::evaluate) .ifPresent(operands::push); } return operands.pop(); } - - private Optional makeExpression(Stack operands, Stack operators, - String element) { - if (!isNumeric(element)) { - Operator operator = getOperatorWithSameSymbol(element); - operators.push(operator); - - return Optional.empty(); - } - - if (operators.isEmpty()) { - int operand = Integer.parseInt(element); - operands.push(operand); - - return Optional.empty(); - } - - Operator operator = operators.pop(); - int operand1 = operands.pop(); - int operand2 = Integer.parseInt(element); - - return Optional.of(new Expression(operator, operand1, operand2)); - } } From 989f7eae9c39ea81a01e987c5cc39de8f99561ec Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 15 Jun 2023 22:11:43 +0900 Subject: [PATCH 24/28] =?UTF-8?q?feat:=20=EC=A4=91=EC=9C=84=ED=91=9C?= =?UTF-8?q?=ED=98=84=EC=8B=9D=EC=97=90=EC=84=9C=20=ED=9B=84=EC=9C=84?= =?UTF-8?q?=ED=91=9C=ED=98=84=EC=8B=9D=EC=9C=BC=EB=A1=9C=20=EB=B3=80?= =?UTF-8?q?=EA=B2=BD=ED=95=98=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20=EC=B6=94?= =?UTF-8?q?=EA=B0=80?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- app/src/main/java/calculator/App.java | 4 +- .../main/java/calculator/entity/Operator.java | 20 +++-- .../calculator/entity/PostfixNotation.java | 81 +++++++++++++++++++ 3 files changed, 98 insertions(+), 7 deletions(-) create mode 100644 app/src/main/java/calculator/entity/PostfixNotation.java diff --git a/app/src/main/java/calculator/App.java b/app/src/main/java/calculator/App.java index 1fad00a2a..3f43c7edc 100644 --- a/app/src/main/java/calculator/App.java +++ b/app/src/main/java/calculator/App.java @@ -4,8 +4,8 @@ import static calculator.view.OutputView.showQuitMessage; import calculator.controller.MainController; -import calculator.entity.InfixNotation; import calculator.entity.Notation; +import calculator.entity.PostfixNotation; import calculator.service.Calculator; import calculator.storage.HistoryStorage; @@ -13,7 +13,7 @@ public class App { public static void main(String[] args) { HistoryStorage historyStorage = new HistoryStorage(); - Notation notation = new InfixNotation(); + Notation notation = new PostfixNotation(); Calculator calculator = new Calculator(historyStorage, notation); MainController mainController = new MainController(historyStorage, calculator); diff --git a/app/src/main/java/calculator/entity/Operator.java b/app/src/main/java/calculator/entity/Operator.java index 72849c851..da77cf4f6 100644 --- a/app/src/main/java/calculator/entity/Operator.java +++ b/app/src/main/java/calculator/entity/Operator.java @@ -4,25 +4,25 @@ import java.util.Arrays; public enum Operator { - ADD("+") { + ADD("+", 1) { @Override public int evaluate(int operand1, int operand2) { return operand1 + operand2; } }, - SUBTRACT("-") { + SUBTRACT("-", 1) { @Override public int evaluate(int operand1, int operand2) { return operand1 - operand2; } }, - MULTIPLY("*") { + MULTIPLY("*", 2) { @Override public int evaluate(int operand1, int operand2) { return operand1 * operand2; } }, - DIVIDE("/") { + DIVIDE("/", 2) { private static final int ZERO = 0; private static final String DIVISION_BY_ZERO_MESSAGE = "0으로 나눌 수 없습니다."; @@ -42,9 +42,11 @@ private void validateIsDivisorNotZero(int divisor) { private static final String NOT_MATCHING_ANY_SYMBOL_MESSAGE = "일치하는 연산자가 없습니다."; private final String symbol; + private final int priority; - Operator(String symbol) { + Operator(String symbol, int priority) { this.symbol = symbol; + this.priority = priority; } public static Operator getOperatorWithSameSymbol(String elementSymbol) { @@ -54,9 +56,17 @@ public static Operator getOperatorWithSameSymbol(String elementSymbol) { .orElseThrow(() -> new ExpressionInputException(NOT_MATCHING_ANY_SYMBOL_MESSAGE)); } + public boolean isLowerOrSamePriorityThan(Operator otherOperator) { + return priority <= otherOperator.getPriority(); + } + public String getSymbol() { return symbol; } + public int getPriority() { + return priority; + } + public abstract int evaluate(int operand1, int operand2); } diff --git a/app/src/main/java/calculator/entity/PostfixNotation.java b/app/src/main/java/calculator/entity/PostfixNotation.java new file mode 100644 index 000000000..7e2d2f537 --- /dev/null +++ b/app/src/main/java/calculator/entity/PostfixNotation.java @@ -0,0 +1,81 @@ +package calculator.entity; + +import static calculator.entity.Operator.getOperatorWithSameSymbol; +import static calculator.utils.StringUtils.isNumeric; +import static calculator.utils.StringUtils.splitToElements; + +import java.util.ArrayList; +import java.util.List; +import java.util.Optional; +import java.util.Stack; + +public class PostfixNotation implements Notation { + + @Override + public String[] makeElements(String expression) { + String[] infixElements = splitToElements(expression); + + return convertToPostfix(infixElements); + } + + @Override + public Optional makeExpression(Stack operands, Stack operators, + String element) { + return Optional.empty(); + } + + private String[] convertToPostfix(String[] elements) { + List postfixElements = new ArrayList<>(); + Stack operators = new Stack<>(); + + for (String element : elements) { + saveElement(postfixElements, operators, element); + } + + while (!operators.isEmpty()) { + addTopOfOperatorStackToPostfixElements(postfixElements, operators); + } + + return postfixElements.toArray(new String[0]); + } + + private void saveElement(List postfixElements, Stack operators, + String element) { + if (isNumeric(element)) { + postfixElements.add(element); + + return; + } + + pushOperator(postfixElements, operators, element); + } + + private void pushOperator(List postfixElements, Stack operators, + String element) { + Operator operator = getOperatorWithSameSymbol(element); + + while (isLowerOrSamePriorityThanTop(operators, operator)) { + addTopOfOperatorStackToPostfixElements(postfixElements, operators); + } + + operators.push(operator); + } + + private boolean isLowerOrSamePriorityThanTop(Stack operators, Operator operator) { + if (operators.isEmpty()) { + return false; + } + + Operator topOfStack = operators.peek(); + + return operator.isLowerOrSamePriorityThan(topOfStack); + } + + private void addTopOfOperatorStackToPostfixElements(List postfixElements, + Stack operators) { + Operator topOfStack = operators.pop(); + String symbol = topOfStack.getSymbol(); + + postfixElements.add(symbol); + } +} From e2efa429f338c39918aa05d21e4491df74585a4f Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 15 Jun 2023 22:13:10 +0900 Subject: [PATCH 25/28] =?UTF-8?q?feat:=20=ED=9B=84=EC=9C=84=ED=91=9C?= =?UTF-8?q?=ED=98=84=EC=8B=9D=20=EA=B3=84=EC=82=B0=20=EC=8B=9C=20=EC=9E=91?= =?UTF-8?q?=EC=9D=80=20=EB=8B=A8=EC=9C=84=EC=9D=98=20=EC=8B=9D=EC=9D=84=20?= =?UTF-8?q?=EB=A7=8C=EB=93=9C=EB=8A=94=20=EA=B8=B0=EB=8A=A5=20=EC=B6=94?= =?UTF-8?q?=EA=B0=80=20-=20PostfixNotation=20=ED=81=B4=EB=9E=98=EC=8A=A4?= =?UTF-8?q?=EC=9D=98=20makeExpression=20=EB=A9=94=EC=84=9C=EB=93=9C=20?= =?UTF-8?q?=EA=B5=AC=ED=98=84?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../java/calculator/entity/PostfixNotation.java | 13 ++++++++++++- 1 file changed, 12 insertions(+), 1 deletion(-) diff --git a/app/src/main/java/calculator/entity/PostfixNotation.java b/app/src/main/java/calculator/entity/PostfixNotation.java index 7e2d2f537..789c399da 100644 --- a/app/src/main/java/calculator/entity/PostfixNotation.java +++ b/app/src/main/java/calculator/entity/PostfixNotation.java @@ -21,7 +21,18 @@ public String[] makeElements(String expression) { @Override public Optional makeExpression(Stack operands, Stack operators, String element) { - return Optional.empty(); + if (isNumeric(element)) { + int operand = Integer.parseInt(element); + operands.push(operand); + + return Optional.empty(); + } + + Operator operator = getOperatorWithSameSymbol(element); + int operand2 = operands.pop(); + int operand1 = operands.pop(); + + return Optional.of(new Expression(operator, operand1, operand2)); } private String[] convertToPostfix(String[] elements) { From b2e6326b3472afadbb9585538afa69dadb0398d2 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 15 Jun 2023 23:04:45 +0900 Subject: [PATCH 26/28] =?UTF-8?q?test:=20=EC=A4=91=EC=9C=84=ED=91=9C?= =?UTF-8?q?=ED=98=84=EC=8B=9D=20=EA=B3=84=EC=82=B0=EA=B8=B0=20=ED=86=B5?= =?UTF-8?q?=ED=95=A9=20=ED=85=8C=EC=8A=A4=ED=8A=B8=20=EC=9E=91=EC=84=B1?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../service/InfixCalculatorTest.java | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 app/src/test/java/calculator/service/InfixCalculatorTest.java diff --git a/app/src/test/java/calculator/service/InfixCalculatorTest.java b/app/src/test/java/calculator/service/InfixCalculatorTest.java new file mode 100644 index 000000000..037bc7a00 --- /dev/null +++ b/app/src/test/java/calculator/service/InfixCalculatorTest.java @@ -0,0 +1,43 @@ +package calculator.service; + +import static org.junit.jupiter.api.Assertions.assertEquals; + +import calculator.entity.InfixNotation; +import calculator.entity.Notation; +import calculator.storage.HistoryStorage; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.DisplayName; +import org.junit.jupiter.params.ParameterizedTest; +import org.junit.jupiter.params.provider.CsvSource; + +public class InfixCalculatorTest { + + private Calculator calculator; + private HistoryStorage historyStorage; + private Notation notation; + + @BeforeEach + void init() { + historyStorage = new HistoryStorage(); + notation = new InfixNotation(); + calculator = new Calculator(historyStorage, notation); + } + + @DisplayName("중위표현식으로 계산할 때 정상적으로 결과 값이 나오는지 테스트") + @ParameterizedTest(name = "{0} = {1}") + @CsvSource({ + "3 + 5, 8", + "4 - 2, 2", + "3 * 6, 18", + "20 / 5, 4", + "3 + 4 * 5 - 2 / 6 + 8, 13", + "10 + 2 * 7 - 3 / 5 - 1, 15", + "1 - 2 / 3 + 4 * 5, 20", + "5 * 4 / 2 + 3 - 1, 12" + }) + void integrationTestWithInfixNotation(String expression, int answer) { + int result = calculator.calculate(expression); + + assertEquals(result, answer); + } +} From a435e9b99e1ca710c6c591045d434ab192d94bc9 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Thu, 15 Jun 2023 23:05:28 +0900 Subject: [PATCH 27/28] =?UTF-8?q?test:=20=ED=9B=84=EC=9C=84=ED=91=9C?= =?UTF-8?q?=ED=98=84=EC=8B=9D=20=EA=B3=84=EC=82=B0=EA=B8=B0=20=ED=86=B5?= =?UTF-8?q?=ED=95=A9=20=ED=85=8C=EC=8A=A4=ED=8A=B8=20=EC=9E=91=EC=84=B1?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- .../service/PostfixCalculatorTest.java | 43 +++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 app/src/test/java/calculator/service/PostfixCalculatorTest.java diff --git a/app/src/test/java/calculator/service/PostfixCalculatorTest.java b/app/src/test/java/calculator/service/PostfixCalculatorTest.java new file mode 100644 index 000000000..b77c5fe88 --- /dev/null +++ b/app/src/test/java/calculator/service/PostfixCalculatorTest.java @@ -0,0 +1,43 @@ +package calculator.service; + +import static org.junit.jupiter.api.Assertions.assertEquals; + +import calculator.entity.Notation; +import calculator.entity.PostfixNotation; +import calculator.storage.HistoryStorage; +import org.junit.jupiter.api.BeforeEach; +import org.junit.jupiter.api.DisplayName; +import org.junit.jupiter.params.ParameterizedTest; +import org.junit.jupiter.params.provider.CsvSource; + +public class PostfixCalculatorTest { + + private Calculator calculator; + private HistoryStorage historyStorage; + private Notation notation; + + @BeforeEach + void init() { + historyStorage = new HistoryStorage(); + notation = new PostfixNotation(); + calculator = new Calculator(historyStorage, notation); + } + + @DisplayName("후위표현식으로 계산할 때 정상적으로 결과 값이 나오는지 테스트") + @ParameterizedTest(name = "{0} = {1}") + @CsvSource({ + "3 + 5, 8", + "4 - 2, 2", + "3 * 6, 18", + "20 / 5, 4", + "3 + 4 * 5 - 2 / 6 + 8, 31", + "10 + 2 * 7 - 3 / 5 - 1, 23", + "1 - 2 / 3 + 4 * 5, 21", + "5 * 4 / 2 + 3 - 1, 12" + }) + void integrationTestWithPostfixNotation(String expression, int answer) { + int result = calculator.calculate(expression); + + assertEquals(result, answer); + } +} From f65b2898ff34326f5902880d03aa12cc89128927 Mon Sep 17 00:00:00 2001 From: kylekim2123 Date: Fri, 16 Jun 2023 01:29:41 +0900 Subject: [PATCH 28/28] =?UTF-8?q?docs:=20README=EC=97=90=20=ED=94=84?= =?UTF-8?q?=EB=A1=9C=EC=A0=9D=ED=8A=B8=20=EB=AA=85=EC=84=B8=20=EC=9E=91?= =?UTF-8?q?=EC=84=B1?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- README.md | 217 ++++++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 162 insertions(+), 55 deletions(-) diff --git a/README.md b/README.md index c1c982e55..8743e2d87 100644 --- a/README.md +++ b/README.md @@ -1,69 +1,176 @@ # java_calculator -자바 계산기 구현 미션 Repository입니다. - -### 이곳은 공개 Repo입니다. -1. 여러분의 포트폴리오로 사용하셔도 됩니다. -2. 때문에 이 repo를 fork한 뒤 -3. 여러분의 개인 Repo에 작업하며 -4. 이 Repo에 PR을 보내어 멘토의 코드 리뷰와 피드백을 받으세요. - -### Branch 명명 규칙 + 팀의 PR규칙 정하기 -1. 여러분 repo는 알아서 해주시고 😀(본인 레포니 main으로 하셔두 되져) -2. prgrms-be-devcourse/spring-board 레포로 PR시 branch는 gituser_id을 적어주세요 :) - - base repo : `여기repo` base : `username` ← head repo : `여러분repo` compare : `main`또는 `github_id` -3. 실제 진행할 PR규칙은 멘토+팀원들과 정하여 진행해주세요 :) - - ← head repo : `여러분repo` compare : `main`로 할지 - - 또는 ← head repo : `여러분repo` compare : `github_id`로 할지 -- 참고 : [Github 위치 및 피드백 기준 가이드](https://www.notion.so/backend-devcourse/Github-e1a0908a6bbf4aeaa5a62981499bb215) - -### 과제를 통해 기대하는 역량 - -- 깃허브를 통한 코드리뷰를 경험해보자 -- 기본적인 테스트 코드 작성 및 활용하는 능력해보자 -- 스스로 OOP를 생각하고 코드로 옮길 수 있는 능력해보자 - -### 요구사항 -- 콘솔로 구현입니다.(스윙으로 구현하시는 분들 계실까봐) -- 객체지향적인 코드로 계산기 구현하기 - - [ ] 더하기 - - [ ] 빼기 - - [ ] 곱하기 - - [ ] 나누기 - - [ ] 우선순위(사칙연산) -- [ ] 테스트 코드 구현하기 -- [ ] 계산 이력을 맵으로 데이터 저장기능 만들기 - - 애플리케이션이 동작하는 동안 데이터베이스 외에 데이터를 저장할 수 있는 방법을 고안해보세요. -- (선택) 정규식 사용 - -### 실행결과(콘솔) +> 순수 자바로 OOP를 적용하여 계산기 만들기 - 김영주 + +## 요구사항 + +- [x] 사용자 입력으로 메뉴를 선택 +- [x] 식을 입력받아 후위 연산식으로 변경 +- [x] 덧셈 +- [x] 뺄셈 +- [x] 곱셈 +- [x] 나눗셈 +- [x] 단일 내역을 저장하는 기능 +- [x] 전체 내역을 조회하는 기능 + + + + +## 실행결과(콘솔) ``` -1. 조회 -2. 계산 +1.조회 +2.계산 +3.종료 + +메뉴를 입력해주세요(숫자만 입력) : 2 + +계산식을 입력하세요(자연수, 사칙연산, 공백 기준) : 3 + 5 * 2 +계산 결과 : 13 + +1.조회 +2.계산 +3.종료 + +메뉴를 입력해주세요(숫자만 입력) : 2 -선택 : 2 +계산식을 입력하세요(자연수, 사칙연산, 공백 기준) : 4 - 2 / 2 + 4 * 2 +계산 결과 : 11 -1 + 2 -3 +1.조회 +2.계산 +3.종료 -1. 조회 -2. 계산 +메뉴를 입력해주세요(숫자만 입력) : 1 +3 + 5 * 2 = 13 +4 - 2 / 2 + 4 * 2 = 11 -선택 : 2 +1.조회 +2.계산 +3.종료 + +메뉴를 입력해주세요(숫자만 입력) : 3 + +프로그램을 종료합니다. +``` + + + +## 주요 객체 목록 + +1. `클라이언트(view/)` + - 입력(InputView.java) + - 메뉴 입력 + - 계산식 입력 + - 출력(OutputView.java) + - 응답받은 결과(내역 혹은 계산 값) 출력 +2. `컨트롤러(controller/)` + - 메뉴(MainController.java) + - 메뉴 선택(조회 서비스, 계산 서비스) +3. `서비스(service/)` + - 계산(Calculator.java) + - 단일 계산 내역을 저장 + - 계산식 결과를 반환 +4. `저장소(storage/)` + - 계산 내역 저장소(HistoryStorage.java) + - Map을 이용해 저장 + - 정상과 예외 내역 모두 저장 + - 조회 시, 전체 계산 내역 반환 +5. `엔티티(entity/)` + - 메뉴(Menu.java) + - 조회, 계산, 종료 + - 선택한 메뉴 번호에 따라 메뉴를 반환 + - 연산자(Operator.java) + - 사칙연산(+, -, *, /) + - 연산자 우선순위에 따라 연산 + - 나눗셈을 할 때 제수가 0이면 안됨 + - 식(Expression.java) + - 피연산자 2개 + - 연산자 1개 + - 작은 식(ex. 3 + 5) 단위의 결과값 반환 + - 표기법(Notation.java) + - 중위표현식(InfixNotation.java) + - 후위표현식(PostfixNotation.java) +6. `예외처리(exception/)` + - 메뉴 예외 + - 존재하지 않는 메뉴 선택 + - 아무것도 입력하지 않음 (입력값을 trim 처리했을 때 공백인 경우) + - 수식 예외 + - 연산자 개수 부족 + - 피연산자 개수 부족 + - 연산자 값이 올바르지 않음 (사칙연산 이외의 기호가 입력된 경우) + - 피연산자 값이 올바르지 않음 (숫자가 아닌 경우, 피연산자와 연산자가 붙어있는 경우) + - 너무 큰 숫자일 경우 (추후 추가 사항) + - 괄호 짝이 맞지 않음(추후 추가 사항) + - 계산 예외 + - 나눗셈의 제수가 0인 경우 + + + +## 프로그램 구조도 + +![image](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2Fb33dec55-c288-45fc-9c6c-20bd669ca9c6%2FUntitled.png?table=block&id=143ebc12-a4d1-49aa-ad0c-0599926d6299&spaceId=a592f9c1-ca11-4018-a4f6-7dbbcd6b008e&width=2000&userId=55d7c337-b594-4735-9e25-4588aa133d55&cache=v2) + +![image](https://www.notion.so/image/https%3A%2F%2Fs3-us-west-2.amazonaws.com%2Fsecure.notion-static.com%2F81cb2325-93dc-430b-bc82-31b85f7c52e0%2FUntitled.png?table=block&id=4caeb1b6-1ed3-402e-955c-0f002c7277fc&spaceId=a592f9c1-ca11-4018-a4f6-7dbbcd6b008e&width=2000&userId=55d7c337-b594-4735-9e25-4588aa133d55&cache=v2) + + + +## 패키지 구조 + +``` +src/main/java/calculator/ +- view/ + - InputView.java + - OutputView.java + +- controller/ + - MainController.java + +- service/ + - Calculator.java + +- storage/ + - HistoryStorage.java + +- entity/ + - Menu.java + - Operator.java + - Expression.java + - Notation.java + - InfixNotation.java + - PostfixNotation.java + +- exception/ + - MenuInputException.java + - ExpressionInputException.java + +- utils/ + - StringUtils.java +``` -1 + 2 * 3 -7 -1. 조회 -2. 계산 -선택 : 1 +## Git commit convention -1 + 2 = 3 -1 + 2 * 3 = 7 +> [Angular JS commit convention](https://velog.io/@outstandingboy/Git-커밋-메시지-규약-정리-the-AngularJS-commit-conventions)를 참고 -선택 : 2 +```markdown +[커밋 메시지 헤더] +(): + │ │ │ + │ │ └─⫸ 현재 시제로 작성한다. 마침표로 끝내지 않는다. + │ │ + │ └─⫸ Commit Scope: 어느 부분을 수정했는지 작성한다.(생략 가능) + │ + └─⫸ Commit Type: build|docs|feat|fix|refactor|test|style -3 - 2 * 2 --1 +[커밋 메시지 바디] +- 현재 시제로 작성한다. +- 변경 전과 후의 차이점과 이유에 대해 작성한다. ``` +- `feat` : 새로운 기능 추가 +- `fix` : 버그 수정 +- `docs` : 문서 관련 +- `style` : 스타일 변경 (포매팅 수정, 들여쓰기 추가, …) +- `refactor` : 코드 리팩토링 +- `test` : 테스트 관련 코드 +- `build` : 빌드 관련 파일 수정