Java sixteen weeks work set

I, entitled

Write an application using Java multi-threading mechanism to achieve synchronization output time display.

Second, the source code

package com;
import java.util.Date;
public class ThreadTime extends Thread {
    public void run(){//重写run方法
        Date date;
        while(true){
            date=new Date();
            System.out.println(date);//输出当前时间
            try {
                this.sleep(2000);//休眠2秒
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }
    public static void main(String[] args) {
        ThreadTime threadTime=new ThreadTime();
        threadTime.start();//启动Thread线程
    }
}

Third, the operating results