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

    }

}