To turn on log messages : Swing Timer « Swing « Java Tutorial

1. Java Tutorial
2. Swing
3. Swing Timer

import java.awt.EventQueue;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Timer;
public class TimerSample {
  public static void main(String args[]) {
    Runnable runner = new Runnable() {
      public void run() {
        Timer.setLogTimers(true);
        ActionListener actionListener = new ActionListener() {
          public void actionPerformed(ActionEvent actionEvent) {
            System.out.println("Hello World Timer");
          }
        };
        Timer timer = new Timer(500, actionListener);
        timer.start();
      }
    };
    EventQueue.invokeLater(runner);
  }
}

14.114.Swing Timer
	14.114.1.	Swing Timers
	14.114.2.	Timer Properties: coalesce
	14.114.3.	Timer Class
	14.114.4.	To turn on log messages
	14.114.5.	Timer based animation
	14.114.6.	A rotating and scaling rectangle.
	14.114.7.	Font size animation
	14.114.8.	Fade out an image: image gradually get more transparent until it is completely invisible.
	14.114.9.	Swing Timer action