写一个死锁例子，及解决死锁

来源：互联网发布：淘宝的返利机器人编辑：程序博客网时间：2024/05/17 01:02

package com.线程间通信;

public class DeadLock {

public static void main(String[] args) throws InterruptedException {    final DeadLock dd1 = new DeadLock();    final DeadLock dd2 = new DeadLock();    Thread t1 = new Thread(new Runnable() {        public void run() {            //首先获得dd1的锁            synchronized (dd1) {                //休眠                try {                    Thread.sleep(50);                    synchronized (dd2) {                        System.out.println(Thread.currentThread().getName()+"线程。。");                        dd2.notify();                    }                } catch (InterruptedException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }            }        }    },"t1");    Thread t2 = new Thread(new Runnable() {        public void run() {            synchronized (dd2) {                try {                    dd2.wait();                    synchronized (dd1) {                        System.out.println(Thread.currentThread().getName()+"线程。。");                    }                } catch (InterruptedException e) {                    // TODO Auto-generated catch block                    e.printStackTrace();                }            }        }    },"t2");    t1.start();    t2.start();}

}

程序中去掉wait()和notify()方法就会造成死锁，使用wait()和notify()解决线程之间的同步问题。

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