package com.brianway.learning.java.multithread.timer.example4;

/**

* Created by brian on 2016/4/15.

*/

import java.util.Timer;

import java.util.TimerTask;

/**

* P259

* scheduleAtFixedRate(TimerTask task, long delay, long period)方法

* long类型

* 在延时的情况下，若执行任务被延时，下次执行任务的开始时间是上一次任务的开始时间作为参考点

*/

public class Run4_scheduleAtFixedRate4 {

static public class MyTask extends TimerTask {

@Override

public void run() {

try {

System.out.println("begin timer=" + System.currentTimeMillis());

Thread.sleep(5000);

System.out.println("end timer=" + System.currentTimeMillis());

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

public static void main(String[] args) {

MyTask task = new MyTask();

System.out.println("当前时间：" + System.currentTimeMillis());

Timer timer = new Timer();

timer.scheduleAtFixedRate(task, 3000, 2000);

}

}

/*

输出：

当前时间：1460738720674

begin timer=1460738723676

end timer=1460738728676

begin timer=1460738728676

end timer=1460738733676

begin timer=1460738733676

*/