1    /** 
2     * Bean1.java 
3     * 
4     * Description:     <describe the Bean1 class here> 
5     * @author 
6     * @version 
7     */ 
8     
9    package bookExamples.ch34BeanProperties; 
10    
11   import java.beans.PropertyChangeListener; 
12   import java.beans.PropertyChangeSupport; 
13    
14    
15   public class Bean1 { 
16    
17       private String title = "Bean1"; 
18    
19       private String customers[] = {"tom", "dick", "harry"}; 
20    
21       private String getCustomer(int i) { 
22           if (i < 0) return null; 
23           if (i >= customers.length) return null; 
24           return customers[i]; 
25       } 
26    
27       public String getTitle() { 
28           return title; 
29       } 
30    
31       public void setTitle(String _title) { 
32           title = _title; 
33           pcs.firePropertyChange("Title", _title, title); 
34           // arguments are property name, oldValue, NewValue. 
35       } 
36    
37       PropertyChangeSupport pcs 
38               = new PropertyChangeSupport(this); 
39    
40       // The listener list wrapper methods 
41       public synchronized void addPropertyChangeListener( 
42               PropertyChangeListener pcl) { 
43           pcs.addPropertyChangeListener(pcl); 
44       } 
45    
46    
47   } 
48    
49    
50   /* @(#)Bean1.java */ 
51