Yurttas/PL/OOL/Java/F/05/02/01/04/CLButtons00.java

 1/**
 2 *  Copyright(C) 1998
 3 *  All Rights Reserved. Salih Yurttas, ZCubes, BitsOfCode Software Systems, Inc..
 4 *
 5 *  Permission to use, copy, modify, and distribute this
 6 *  software and its documentation for EDUCATIONAL purposes
 7 *  and without fee is hereby granted provided that this
 8 *  copyright notice appears in all copies.
 9 *
10 *  @date   : January 1, 1998.
11 *  @author : Salih Yurttas.
12 */
13
14
15import java.awt.*;
16
17import java.awt.event.*;
18
19public class CLButtons00 extends Frame
20                         implements ActionListener {
21
22  public static void main(String[] args) {
23    Frame f = new CLButtons00();
24
25    f.setSize(400,320);
26    f.show();
27  }
28
29  private CardLayout cL;
30
31  private Panel cards;
32
33  private String[] bLabels = {"One",
34                              "Two",
35                              "Three"};
36  private int n = bLabels.length;
37
38  private Button[] b;
39
40  public CLButtons00() {
41
42    setTitle("CLButtons00");
43
44    cL = new CardLayout();
45    cards = new Panel();
46
47    cards.setLayout(cL);
48
49    b = new Button[n];
50
51    for(int i=0; i<n; i++) {
52      b[i] = new Button(bLabels[i]);
53      b[i].addActionListener(this);
54      Integer n = new Integer(i);
55      cards.add(b[i], n.toString());
56    }
57
58    add("Center", cards);
59  }
60   
61  public void actionPerformed(ActionEvent e) {
62    String arg = e.getActionCommand();
63
64    if (arg.equals("One")) cL.next(cards);
65    else if (arg.equals("Two")) cL.next(cards);
66    else if (arg.equals("Three")) cL.first(cards);
67    repaint();
68  }
69
70}