Java捕獲窗口狀態事件

Java捕獲窗口狀態事件：

1. package com.han;
3. import java.awt.Frame;
4. import java.awt.event.WindowEvent;
5. import java.awt.event.WindowStateListener;
7. import javax.swing.JFrame;
9. /**
10. * 捕獲窗口狀態事件
11. * @author HAN
12. *
13. */
14. public class WindowEvent_2 extends JFrame {
16. /**
17. *
18. */
19. private static final long serialVersionUID = -2809729177140674307L;
21. public WindowEvent_2() {
22. // TODO Auto-generated constructor stub
23. addWindowStateListener(new WindowStateListener() {
25. @Override
26. public void windowStateChanged(WindowEvent e) {
27. // TODO Auto-generated method stub
28. int oldState = e.getOldState();
29. int newState = e.getNewState();
30. String from = null;
31. String to;
32. switch (oldState) {
33. case Frame.NORMAL:
34. from = "正常化";
35. break;
36. case Frame.MAXIMIZED_BOTH:
37. from = "最大化";
38. break;
39. case Frame.ICONIFIED:
40. from = "圖標化";
41. break;
42. }
43. switch (newState) {
44. case Frame.NORMAL:
45. to = "正常化";
46. break;
47. case Frame.MAXIMIZED_BOTH:
48. to = "最大化";
49. break;
50. default:
51. to = "圖標化";
52. break;
53. }
54. System.out.println(from + "---->" + to);
55. }
57. });
58. }
60. /**
61. * @param args
62. */
63. public static void main(String[] args) {
64. // TODO Auto-generated method stub
65. WindowEvent_2 frame = new WindowEvent_2();
66. frame.setTitle("捕獲窗口狀態事件");
67. frame.setVisible(true);
68. frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
69. frame.setBounds(0, 0, 300, 100);
70. }
72. }