public class TimeTest {
public static void main(String[] args) {
  
   Timer timer = new Timer();
   timer.schedule(new MyTask(),1000,2000);
}

public class MyTask extends TimerTask{

  @Override
  public void run() {
 System.out.println("开始运行");    
  }
}

public class SerchRun {

  protected static void startRun(){
    Timer timer = new Timer();
     TimerTask task =new TimerTask(){
       public void run(){
         System.out.println("开始运行"); //在这写你要调用的方法
       }
     };
   timer.scheduleAtFixedRate(task, new Date(),2000);//当前时间开始起动 每次间隔2秒再启动
   // timer.scheduleAtFixedRate(task, 1000,2000); // 1秒后启动 每次间隔2秒再启动         
   }
  
  public static void main(String[] args) {
   SerchRun.startRun();
  }
}

SimpleDateFormat fTime = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss");
 Date d1 = fTime.parse("2005/12/30 14:10:00");
 
 t.scheduleAtFixedRate(new TimerTask(){
  public void run()
  {
    System.out.println("this is task you do6");
  }
 },d1,3*60*1000);

this is task you do6   //14:10
this is task you do6   //14:13
this is task you do6   //14:16