diff --git a/books.json b/books.json
index e69de29..1de2a3a 100644
--- a/books.json
+++ b/books.json
@@ -0,0 +1,25 @@
+[
+  {
+    "title": "Jatuh Bangung Seorang Fullstack",
+    "author": "Kang Udin",
+    "_totalPage": 89,
+    "_readingDays": 0,
+    "isAvail": true
+  },
+  {
+    "title": "Orang Dibalik Apple",
+    "author": "Mas Bejo",
+    "_totalPage": 327,
+    "figure": "Steve Wozniak",
+    "_readingDays": 0,
+    "isAvail": true
+  },
+  {
+    "title": "Awal Peradaban Callback",
+    "author": "Bang Togar",
+    "_totalPage": 127,
+    "figure": "Middle Earth",
+    "_readingDays": 0,
+    "isAvail": true
+  }
+]
\ No newline at end of file
diff --git a/soalUjian.js b/soalUjian.js
new file mode 100644
index 0000000..4b76627
--- /dev/null
+++ b/soalUjian.js
@@ -0,0 +1,120 @@
+class Journal{
+	constructor(title,author,totalPage){		
+		this.title = title
+		this.author = author
+		this._totalPage = totalPage
+		this._readingDays = 0
+		this.isAvail = true
+	}
+	get totalPage () {
+		if (this._totalPage > 200) {
+			return `Banyak halamannya capek ngitungnya`
+		}else{
+			return this._totalPage
+		}
+	}
+	set readingDays(readingDays){
+		this.readingDays = Math.ceil(this._totalPage / 100) 
+	}
+
+	
+}
+class Biography{
+	constructor(title,author,totalPage,figure){		
+		this.title = title
+		this.author = author
+		this._totalPage = totalPage
+		this.figure = figure
+		this._readingDays = 0
+		this.isAvail = true
+	}
+	get totalPage () {
+		if (this._totalPage > 200) {
+			return `Banyak halamannya capek ngitungnya`
+		}else{
+			return this._totalPage
+		}
+	}
+	set readingDays(readingDays){
+		this.readingDays = Math.ceil(this._totalPage / 100) 
+	}
+}
+class History{
+	constructor(title,author,totalPage,figure){		
+		this.title = title
+		this.author = author
+		this._totalPage = totalPage
+		this.figure = figure
+		this._readingDays = 0
+		this.isAvail = true
+	}
+	get totalPage () {
+		if (this._totalPage > 200) {
+			return `Banyak halamannya capek ngitungnya`
+		}else{
+			return this._totalPage
+		}
+	}	
+	set readingDays(readingDays){
+		this.readingDays = Math.ceil(this._totalPage / 100) 
+	}
+	
+}
+
+class perpustakaan {
+	constructor(nama,alamat,book){		
+		this.nama = nama
+		this.alamat = alamat
+		this.book = book
+	}
+}
+var newJurnal = new Journal(
+	'Jatuh Bangung Seorang Fullstack', 
+	'Kang Udin', 
+	89)
+
+var newBiography = new Biography(
+	'Orang Dibalik Apple', 
+	'Mas Bejo', 
+	327, 
+	'Steve Wozniak')
+
+var newHistory = new History(
+	'Awal Peradaban Callback', 
+	'Bang Togar', 
+	127, 
+	'Middle Earth')
+
+let book = [newJurnal,newBiography,newHistory]
+
+var perpus = new perpustakaan(
+	'Perpustakaan Javascript', 
+	'Pondok Indah', book)
+
+console.log(perpus.book)
+
+'use strict';
+
+const fs = require('fs')
+
+
+
+let data = JSON.stringify(perpus.book, null, 2);  
+fs.writeFileSync('books.json', data);  
+
+
+// let rawData = fs.readFileSync('books.json')
+// let book = JSON.parse(rawData)
+// console.log(book)
+
+
+
+
+
+
+
+
+
+
+
+