java 定时任务 TimerTask Timer

package com.test.tasket;

import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.Locale;
import java.util.Timer;
import java.util.TimerTask;

public class TestTasket extends TimerTask{
 private int count = 0;
 private static SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
 

/**
  * @param args
  */
 public static void main(String[] args) {
  TestTasket tt = new TestTasket();
  tt.testTime();

 }

 public void testTime()
 {
  try {
   TestTasket tasket = new TestTasket();
   Timer timer = new Timer();
   String timeNow = "2011-10-31 11:25:00";
   Date timeDate = sdf.parse(timeNow);
    timer.schedule(tasket,timeDate, 1000);
   } catch (ParseException e) {
    // TODO Auto-generated catch block
    e.printStackTrace();
   }
 }
 @Override
 public void run() {
  System.out.println("时间：" + sdf.format(new Date()) + "已经执行任务"+count+"次");
  count ++ ;
  
 }