package com.zbb.test.thread;public class DeadLock {	public static String obj1 = "obj1";	public static String obj2 = "obj2";	public static void main(String[] args) {		Thread a = new Thread(new Lock1());		Thread b = new Thread(new Lock2());		a.start();		b.start();	}}class Lock1 implements Runnable {	@Override	public void run() {		try {			System.out.println("Lock1 running");			while (true) {				synchronized (DeadLock.obj1) {					System.out.println("Lock1 lock obj1");					Thread.sleep(3000);// 获取obj1后先等一会儿，让Lock2有足够的时间锁住obj2					synchronized (DeadLock.obj2) {						System.out.println("Lock1 lock obj2");					}				}			}		} catch (Exception e) {			e.printStackTrace();		}	}}class Lock2 implements Runnable {	@Override	public void run() {		try {			System.out.println("Lock2 running");			while (true) {				synchronized (DeadLock.obj2) {					System.out.println("Lock2 lock obj2");					Thread.sleep(3000);					synchronized (DeadLock.obj1) {						System.out.println("Lock2 lock obj1");					}				}			}		} catch (Exception e) {			e.printStackTrace();		}	}}