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Java > Open Source Codes > sample > duplicate > Viewer


1 package sample.duplicate;
2
3 import java.applet.*;
4 import java.awt.*;
5 import java.awt.event.*;
6
7 public class Viewer extends Applet
8     implements MouseListener, ActionListener, WindowListener
9 {
10     private static final Color[] colorList = {
11     Color.orange, Color.pink, Color.green, Color.blue };
12
13     private Ball ball;
14     private int colorNo;
15
16     public void init() {
17     colorNo = 0;
18     Button b = new Button("change");
19     b.addActionListener(this);
20     add(b);
21
22     addMouseListener(this);
23     }
24
25     public void start() {
26     ball = new Ball(50, 50);
27     ball.changeColor(colorList[0]);
28     }
29
30     public void paint(Graphics g) {
31     ball.paint(g);
32     }
33
34     public void mouseClicked(MouseEvent ev) {
35     ball.move(ev.getX(), ev.getY());
36     repaint();
37     }
38
39     public void mouseEntered(MouseEvent ev) {}
40
41     public void mouseExited(MouseEvent ev) {}
42
43     public void mousePressed(MouseEvent ev) {}
44
45     public void mouseReleased(MouseEvent ev) {}
46
47     public void actionPerformed(ActionEvent e) {
48     ball.changeColor(colorList[++colorNo % colorList.length]);
49     repaint();
50     }
51
52     public void windowOpened(WindowEvent e) {}
53
54     public void windowClosing(WindowEvent e) {
55     System.exit(0);
56     }
57
58     public void windowClosed(WindowEvent e) {}
59
60     public void windowIconified(WindowEvent e) {}
61
62     public void windowDeiconified(WindowEvent e) {}
63
64     public void windowActivated(WindowEvent e) {}
65
66     public void windowDeactivated(WindowEvent e) {}
67
68     public static void main(String JavaDoc[] args) {
69     Frame f = new Frame("Viewer");
70     Viewer view = new Viewer();
71     f.addWindowListener(view);
72     f.add(view);
73     f.setSize(300, 300);
74     view.init();
75     view.start();
76     f.setVisible(true);
77     }
78 }
79
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