java 定时器

package com.yang.stati;

import java.util.TimerTask;

public class TimerTaskTest   extends TimerTask{

@Override  public void run() {

     System.out.println("时间到！");  }

}

package com.yang.stati;

import java.util.Date;

import java.util.Timer;

import java.util.TimerTask;

public class TimerTest {

 private Timer time=new Timer();

 public void execute(

TimerTaskTest timeto,Date date){  

System.out.println(time);

  time.schedule(timeto, date);

 } }

package com.yang.stati;

 import java.text.ParseException;

import java.text.SimpleDateFormat;

import java.util.TimerTask;

public class Clock {

 /**   * @param args   *

@throws ParseException   */  

public static void main(String[] args) throws ParseException {

  TimerTest tt=new TimerTest();  

 SimpleDateFormat sdf=new SimpleDateFormat("yyyy/M/d/H/m");  

 tt.execute(new TimerTaskTest(), sdf.parse("2008/7/6/16/34"));

 }

}