CountDownLaunch

package com.ane56.dispatch.application;

import java.text.SimpleDateFormat;
import java.util.concurrent.CountDownLatch;

/** 
* @author 冒云龙 
* @date 2017年4月10日 上午9:13:06 
* @describe 
*/

public class CountDownLatchTest {

	final static SimpleDateFormat SIMPLE_DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss ");
	public static void main(String[] args){
		CountDownLatch latch = new CountDownLatch(2);
		Worker worker = new Worker("Tom", 1000, latch);
		Worker worker2 = new Worker("Sam", 2000, latch);
		worker.start();
		worker2.start();
	}
	static class Worker extends Thread{
		private String name;
		private int workTime;
		private CountDownLatch latch;
		public Worker(String name,int workTime,CountDownLatch latch){
			this.name=name;
			this.workTime=workTime;
			this.latch=latch;
		}
		public void run(){
			System.out.println(name+"开始工作"+SIMPLE_DATE_FORMAT.format(new java.util.Date()));
			doWork();
			System.out.println(name+"工作结束"+SIMPLE_DATE_FORMAT.format(new java.util.Date()));
			latch.countDown();
			System.out.println(latch);
		}
		private void doWork() {
			try {
				Thread.sleep(workTime);
			} catch (InterruptedException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
			
		}
	}
	
}