1    package gui; 
2     
3    import javax.swing.*; 
4    import java.awt.*; 
5    import java.awt.event.WindowEvent; 
6    import java.awt.event.WindowListener; 
7     
8    public class JClosableFrame 
9            extends JFrame implements WindowListener { 
10   // constructor needed to pass 
11   // window title to class Frame 
12       public JClosableFrame(String name) { 
13           // call java.awt.Frame(String) constructor 
14           super(name); 
15           init(); 
16       } 
17    
18       public JClosableFrame() { 
19           init(); 
20       } 
21    
22       private void init() { 
23           setBackground(Color.white); 
24           addWindowListener(this); 
25       } 
26    
27    
28       public static void main(String args[]) { 
29           JClosableFrame cf = new JClosableFrame("Closable Frame"); 
30           cf.setSize(200, 200); 
31           cf.show(); 
32       } 
33    
34    
35       public void windowClosing(WindowEvent e) { 
36           setVisible(true); 
37           dispose(); 
38       } 
39    
40       public void windowClosed(WindowEvent e) { 
41       }; 
42       public void windowDeiconified(WindowEvent e) { 
43       }; 
44       public void windowIconified(WindowEvent e) { 
45       }; 
46       public void windowActivated(WindowEvent e) { 
47       }; 
48       public void windowDeactivated(WindowEvent e) { 
49       }; 
50       public void windowOpened(WindowEvent e) { 
51       }; 
52   }