java的一个简单死锁的例子

package com.deadlock;

/*
 * 演示死锁：（由毕向东视频所得）
 * 一种解释：Thread—0拿到lock1锁，Thread—1拿到lock2锁，Thread—0想要lock2锁而Thread-1想要lock1锁，
 * 两个线程都无法继续执行下去，产生死锁。
 * 执行结果：Thread-0 if.....lock1
 *　　　　　 Thread-1 else....lock2
 */
public class DeadLockDemo {

    public static void main(String[] args) {
        Test a = new Test(true);
        Test b = new Test(false);
        Thread t1 = new Thread(a);
        Thread t2 = new Thread(b);
        t1.start();
        t2.start();
    }

}

class MyLock {
    public static final Object lock1 = new Object();
    public static final Object lock2 = new Object();

}

class Test implements Runnable {
    private boolean flag;

    public Test(boolean flag) {
        this.flag = flag;
    }

    public void run() {
        if (flag) {
            while (true)
                synchronized (MyLock.lock1) {
                    System.out.println(Thread.currentThread().getName() + " if.....lock1");
                    synchronized (MyLock.lock2) {
                        System.out.println(Thread.currentThread().getName() + " if....lock2");
                    }
                }
        } else {
            while (true)
                synchronized (MyLock.lock2) {
                    System.out.println(Thread.currentThread().getName() + " else....lock2");

                    synchronized (MyLock.lock1) {
                        System.out.println(Thread.currentThread().getName() + " else.....lock1");
                    }
                }
        }
    }
}