c#与Java事件定义的不同

C#:

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Text;
 4 
 5 namespace Test1
 6 {
 7     class Program
 8     {
 9         /// <summary>
10         /// 主函数
11         /// </summary>
12         /// <param name="args">参数</param>
13         static void Main(string[] args)
14         {
15             EventSourceObject obj = new EventSourceObject();
16             obj.Name = "Child";
17             obj.Wakeup += new WakeupEventDelegate(obj_Wakeup);
18             obj.DoWakeup();
19             System.Console.Read();
20         }
21 
22         static void obj_Wakeup(object sender)
23         {
24             System.Console.WriteLine(((EventSourceObject)sender).Name + " wakeup.");
25         }
26     }
27 
28     /// <summary>
29     /// 唤醒事件委托
30     /// </summary>
31     /// <param name="sender">发送源</param>
32     public delegate void WakeupEventDelegate(object sender);
33 
34     /// <summary>
35     /// 事件源对象
36     /// </summary>
37     public class EventSourceObject
38     {
39         /// <summary>
40         /// 名称
41         /// </summary>
42         public string Name { get; set; }
43 
44         /// <summary>
45         /// 唤醒事件
46         /// </summary>
47         public event WakeupEventDelegate Wakeup;
48 
49         /// <summary>
50         /// 唤醒（触发事件）
51         /// </summary>
52         public void DoWakeup()
53         {
54             System.Console.WriteLine("Parent wakeup.");
55             if (Wakeup != null)
56             {
57                 Wakeup(this);
58             }
59         }
60     }
61 }

Java:

 1 import java.util.EventListener;
 2 import java.util.EventObject;
 3 
 4 public class Main {
 5     /*
 6      * 主函数
 7      */
 8     public static void main(String[] args){
 9         EventSourceObject obj = new EventSourceObject();
10         obj.setName("Child");
11         // 注册事件
12         obj.setWakeupListener(new WakeupEventListener(){
13             @Override
14             public void fireEvent(WakeupEvent e){
15                 super.fireEvent(e);
16                 System.out.println(((EventSourceObject)e.getSource()).getName() + " wakeup.");
17             }
18         });
19         // 触发事件
20         obj.wakeup();
21     }
22 }
23 /*
24  * 定义唤醒事件
25  */
26 class WakeupEvent extends EventObject{
27     private static final long serialVersionUID = 1L;
28     public WakeupEvent(Object source){
29         super(source);
30     }
31 }
32 /*
33  * 定义唤醒事件监听
34  */
35 class WakeupEventListener implements EventListener{    
36     public void fireEvent(WakeupEvent e){
37         System.out.println("Parent wakeup.");
38     }
39 }
40 /*
41  * 定义事件源对象
42  */
43 class EventSourceObject{
44     private String name;
45     private WakeupEventListener listener;
46     /*
47      * 获取名称
48      */
49     public String getName(){
50         return this.name;
51     }
52     /*
53      * 设置名称
54      */
55     public void setName(String name){
56         this.name = name;
57     }
58     /*
59      * 设置唤醒事件监听
60      */
61     public void setWakeupListener(WakeupEventListener listener){
62         this.listener = listener;
63     }
64     /*
65      * 唤醒（触发事件）
66      */
67     public void wakeup(){
68         this.listener.fireEvent(new WakeupEvent(this));
69     }
70 }