java wait

 package com.citi.test.mutiplethread.demo0503;
 
 import java.util.Date;
 
 public class WaitTest {
     public static void main(String[] args) {
         ThreadA t1=new ThreadA("t1");
         System.out.println("t1:"+t1);
         synchronized (t1) {
             try {
                 //启动线程
                 System.out.println(Thread.currentThread().getName()+" start t1");
                 t1.start();
                 //主线程等待t1通过notify唤醒。
                 System.out.println(Thread.currentThread().getName()+" wait()"+ new Date());
                 t1.wait();// 不是使t1线程等待，而是当前执行wait的线程等待
                 System.out.println(Thread.currentThread().getName()+" continue"+ new Date());
             } catch (Exception e) {
                 e.printStackTrace();
             }
         }
     }
 }
 
 class ThreadA extends Thread{
     public ThreadA(String name) {
         super(name);
     }
     @Override
     public void run() {
         synchronized (this) {
             System.out.println("this:"+this);
             try {
                 Thread.sleep(2000);//使当前线程阻塞1秒
             } catch (InterruptedException e) {
                 // TODO Auto-generated catch block
                 e.printStackTrace();
             }
             System.out.println(Thread.currentThread().getName()+" call notify()");
             this.notify();
         }
     }
 }