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Listens for window iconify and deiconify events, so that it can stop the animation when the window isnt visible

import java.awt.event.WindowEvent; import java.awt.event.WindowListener; import javax.swing.JFrame; public class UsingWindowListener {   public static void main(String[] args) {     JFrame aWindow = new JFrame("This is the Window Title");     aWindow.setBounds(50, 100, 300, 300);     aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);     aWindow.addWindowListener(new WindowListener() {       public void windowIconified(WindowEvent e) {         System.out.println(e);       }       public void windowDeiconified(WindowEvent e) {       }       public void windowOpened(WindowEvent e) {       }       public void windowClosing(WindowEvent e) {       }       public void windowClosed(WindowEvent e) {       }       public void windowActivated(WindowEvent e) {       }       public void windowDeactivated(WindowEvent e) {       }     });     aWindow.setVisible(true);   } }