Suppose you have a button in your Java program that counts down a time. Here is the code for 10 minutes timer.

private final static long REFRESH_LIST_PERIOD=10 * 60 * 1000; //10 minutes

Timer timer = new Timer(1000, new ActionListener() {

   @Override
   public void actionPerformed(ActionEvent e) {
    if (cnt > 0) {
     cnt = cnt - 1000;
     btnCounter.setText("Remained (" + format.format(new Date(cnt)) + ")");
    } else {
     cnt = REFRESH_LIST_PERIOD;
     //TODO
    }

   }
  });

  timer.start();