DeadLock.java

package ch4.s5;

public class DeadLock extends Thread {
    protected Object tool;
    static Object fork1 = new Object();
    static Object fork2 = new Object();

    public DeadLock(Object obj){
        this.tool = obj;
        if(tool == fork1){
            this.setName("哲学家A");
        }
        if(tool == fork2){
            this.setName("哲学家B");
        }
    }


    public void run() {
        if(tool == fork1){
            synchronized (fork1){
                try {
                    Thread.sleep(500);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                synchronized (fork2){
                    System.out.println("哲学家A开始吃饭了");
                }
            }
        }
        if(tool == fork2){
            synchronized (fork2){
                try {
                    Thread.sleep(500);
                } catch (InterruptedException e) {
                    e.printStackTrace();
                }
                synchronized (fork1){
                    System.out.println("哲学家B开始吃饭了");
                }
            }
        }
    }

    public static void main(String []args) throws InterruptedException {
        DeadLock 哲学家A = new DeadLock(fork1);
        DeadLock 哲学家B = new DeadLock(fork2);
        哲学家A.start();
        哲学家B.start();
        Thread.sleep(1000);
     }
}