Java定时器

import java.util.Timer;



import java.util.TimerTask;





public class TryTimer {



    public static void main(String[] args) {



       Timer timer = new Timer();



       timer.schedule(new TimerTask() {



           public void run() {



              System.out.println("haha");



           }



       }, 0, 1000);



       //0ms之后开始执行，每隔1000ms执行一次



    }



}