timer

public class Run4 {
    static int i = 0;

   static public class MyTask extends TimerTask {
       @Override
        public void run() {
          System.out.println("正常执行了" + i);
     }
    }

   public static void main(String[] args) {
     while (true) {
           try {
                i++;
             Timer timer = new Timer();
               MyTask task = new MyTask();
              SimpleDateFormat sdf = new SimpleDateFormat(
                     "yyyy-MM-dd HH:mm:ss");
              String dateString = "2014-10-12 09:08:00";

              Date dateRef = sdf.parse(dateString);
                timer.schedule(task, dateRef);
               timer.cancel();
          } catch (ParseException e) {
             e.printStackTrace();
         }
        }
    }
}