public class MenuAdd extends JFrame implements ActionListener
1: import javax.swing.JFrame;
2: import javax.swing.JMenu;
3: import javax.swing.JMenuBar;
4: import javax.swing.JMenuItem;
5: import javax.swing.JPanel;
6: import javax.swing.JTextArea;
7: import java.awt.Color;
8: import java.awt.Container;
9: import java.awt.BorderLayout;
10: import java.awt.event.ActionEvent;
11: import java.awt.event.ActionListener;
12:
13: public class MenuAdd extends JFrame implements ActionListener
14: {
15: public static final int WIDTH = 600;
16: public static final int HEIGHT = 300;
17: public static final int LINES = 10;
18: public static final int CHAR_PER_LINE = 40;
19:
20: private JTextArea theText;
21: private String memo1 = "No Memo 1.";
22: private String memo2 = "No Memo 2.";
23:
24: public MenuAdd()
25: {
26: setSize(WIDTH, HEIGHT);
27: addWindowListener(new WindowDestroyer());
28: setTitle("Memo Saver");
29: Container contentPane = getContentPane();
30: contentPane.setLayout(new BorderLayout());
31:
32: JMenu memoMenu = new JMenu("Memos");
33: JMenuItem m;
34:
35: m = new JMenuItem("Save Memo 1");
36: m.addActionListener(this);
37: memoMenu.add(m);
38:
39: m = new JMenuItem("Save Memo 2");
40: m.addActionListener(this);
41: memoMenu.add(m);
42:
43: m = new JMenuItem("Get Memo 1");
44: m.addActionListener(this);
45: memoMenu.add(m);
46:
47: m = new JMenuItem("Get Memo 2");
48: m.addActionListener(this);
49: memoMenu.add(m);
50:
51: m = new JMenuItem("Clear");
52: m.addActionListener(this);
53: memoMenu.add(m);
54:
55: m = new JMenuItem("Exit");
56: m.addActionListener(this);
57: memoMenu.add(m);
58:
59: JMenuBar mBar = new JMenuBar();
60: mBar.add(memoMenu);
61: contentPane.add(mBar, BorderLayout.SOUTH);
62:
63: JPanel textPanel = new JPanel();
64: textPanel.setBackground(Color.BLUE);
65: theText = new JTextArea(LINES, CHAR_PER_LINE);
66: theText.setText("Menu bar is at the bottom.");
67: theText.setBackground(Color.WHITE);
68: textPanel.add(theText);
69: contentPane.add(textPanel, BorderLayout.CENTER);
70: }
71:
72: public void actionPerformed(ActionEvent e)
73: {
74: String actionCommand = e.getActionCommand();
75: if (actionCommand.equals("Save Memo 1"))
76: memo1 = theText.getText();
77: else if (actionCommand.equals("Save Memo 2"))
78: memo2 = theText.getText();
79: else if (actionCommand.equals("Clear"))
80: theText.setText("");
81: else if (actionCommand.equals("Get Memo 1"))
82: theText.setText(memo1);
83: else if (actionCommand.equals("Get Memo 2"))
84: theText.setText(memo2);
85: else if (actionCommand.equals("Exit"))
86: System.exit(0);
87: else
88: theText.setText("Error in memo interface");
89: }
90:
91: public static void main(String[] args)
92: {
93: MenuAdd gui = new MenuAdd();
94: gui.setVisible(true);
95: }
96: }