01.package com.java.myapp;
02.
03.import java.awt.Button;
04.import java.awt.EventQueue;
05.import java.awt.Frame;
06.import java.awt.MenuItem;
07.import java.awt.PopupMenu;
08.import java.awt.event.ActionEvent;
09.import java.awt.event.ActionListener;
10.import java.awt.event.MouseAdapter;
11.import java.awt.event.MouseEvent;
12.import java.awt.event.WindowEvent;
13.import javax.swing.JOptionPane;
14.
15.public class MyForm extends Frame {
16.
17. public static void main(String[] args) {
18. EventQueue.invokeLater(new Runnable() {
19. public void run() {
20. MyForm form = new MyForm();
21. form.setVisible(true);
22. }
23. });
24. }
25.
26. public MyForm() {
27.
28. super("ThaiCreate.Com Java GUI Tutorial");
29. setSize(434, 285);
30. setLocation(500, 280);
31. setLayout(null);
32.
33.
34. final Button btn = new Button("Pop-up Menu");
35. btn.setBounds(140, 120, 150, 20);
36. final CreatePopupMenu popMenu = new CreatePopupMenu(this);
37. add(popMenu);
38. btn.addActionListener(new ActionListener() {
39. public void actionPerformed(ActionEvent e) {
40. popMenu.show(btn, 20, 20);
41. }
42. });
43. add(btn);
44.
45.
46. addMouseListener(new MouseAdapter() {
47. public void mousePressed(MouseEvent e) {
48. if (e.isPopupTrigger())
49. popMenu.show(e.getComponent(), e.getX(), e.getY());
50. }
51.
52. public void mouseReleased(MouseEvent e) {
53. if (e.isPopupTrigger())
54. popMenu.show(e.getComponent(), e.getX(), e.getY());
55. }
56. });
57.
58.
59. addWindowListener(new java.awt.event.WindowAdapter() {
60. public void windowClosing(WindowEvent evt) {
61. System.exit(0);
62. }
63. });
64. }
65.
66. class CreatePopupMenu extends PopupMenu implements ActionListener {
67. MyForm ref;
68.
69. public CreatePopupMenu(MyForm ref) {
70. super("File");
71. this.ref = ref;
72. MenuItem mnItem;
73. add(mnItem = new MenuItem("Menu Item 1"));
74. mnItem.addActionListener(this);
75. add(mnItem = new MenuItem("Menu Item 2"));
76. mnItem.addActionListener(this);
77. add(mnItem = new MenuItem("Menu Item 3"));
78. mnItem.addActionListener(this);
79. add(mnItem = new MenuItem("Menu Item 4"));
80. mnItem.addActionListener(this);
81. add(mnItem = new MenuItem("Menu Item 5"));
82. mnItem.addActionListener(this);
83. }
84.
85. @Override
86. public void actionPerformed(ActionEvent e) {
87.
88. String item = e.getActionCommand();
89. JOptionPane.showMessageDialog(null,
90. "Your Selected : " + item.toString());
91. }
92.
93. }
94.}
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