Question

I want my program to start off using a countdown timer that will be displayed to the user. The only way I can think to do that is to label.setText() and Thread.sleep(). I’ve tried for about 20min trying to get it to work, but can’t seem to crack it. Help?

Answer 1

Use a Swing timer. Basically you create a class that implements ActionListener, create a javax.swing.Timer, and the actionPerformed method of the ActionListener gets called at an interval you specify. In your actionPerformed method, check the time, and update the value to be displayed when appropropriate, and call repaint(). Use an interval of 0.1 second, and your countdown will be smooth and accurate enough.