1    package gui.run; 
2     
3    import java.awt.Container; 
4    import java.awt.FlowLayout; 
5     
6     
7    public abstract class ThreadedRunButton extends 
8            javax.swing.JButton implements 
9            java.awt.event.ActionListener, Runnable { 
10       public ThreadedRunButton(String label) { 
11           this(label, null); 
12       } 
13    
14       public ThreadedRunButton(String l, javax.swing.Icon i) { 
15           super(l, i); 
16           addActionListener(this); 
17       } 
18    
19       public ThreadedRunButton(javax.swing.Icon i) { 
20           this(null, i); 
21       } 
22    
23       public ThreadedRunButton() { 
24           this(null, null); 
25       } 
26    
27       private Thread t = null; 
28    
29       /** 
30        *    interrupt the thread that the button started. 
31        */ 
32       public void interrupt() { 
33           t.interrupt(); 
34       } 
35    
36       public void actionPerformed(java.awt.event.ActionEvent e) { 
37           t = new Thread(this); 
38           t.start(); 
39       } 
40    
41    
42       public static void main(String args[]) { 
43           final ThreadedRunButton sleepingButton = 
44                   new ThreadedRunButton("sleep") { 
45               public void run() { 
46                   try { 
47                       Thread.sleep(2000); 
48                       System.out.println("alarm!"); 
49                   } catch (InterruptedException ie) { 
50                       System.out.println("You woke me up!"); 
51                   } 
52               } 
53           }; 
54    
55           gui.ClosableJFrame cf = 
56                   new gui.ClosableJFrame("Wake up!"); 
57           Container c = cf.getContentPane(); 
58           c.setLayout(new FlowLayout()); 
59           c.add(new ThreadedRunButton("wake the sleeper") { 
60               public void run() { 
61                   sleepingButton.interrupt(); 
62               } 
63           }); 
64           c.add(sleepingButton); 
65           cf.setSize(200, 200); 
66           cf.show(); 
67       } 
68    
69   }