1 files changed, 78 insertions, 0 deletions
diff --git a/sample/duplicate/Viewer.java b/sample/duplicate/Viewer.java
new file mode 100644
index 00000000..aec13f6b
--- /dev/null
+++ b/sample/duplicate/Viewer.java
@@ -0,0 +1,78 @@
+package sample.duplicate;
+
+import java.applet.*;
+import java.awt.*;
+import java.awt.event.*;
+
+public class Viewer extends Applet
+    implements MouseListener, ActionListener, WindowListener
+{
+    private static final Color[] colorList = {
+	Color.orange, Color.pink, Color.green, Color.blue };
+
+    private Ball ball;
+    private int colorNo;
+
+    public void init() {
+	colorNo = 0;
+	Button b = new Button("change");
+	b.addActionListener(this);
+	add(b);
+
+	addMouseListener(this);
+    }
+
+    public void start() {
+	ball = new Ball(50, 50);
+	ball.changeColor(colorList[0]);
+    }
+
+    public void paint(Graphics g) {
+	ball.paint(g);
+    }
+
+    public void mouseClicked(MouseEvent ev) {
+	ball.move(ev.getX(), ev.getY());
+	repaint();
+    }
+
+    public void mouseEntered(MouseEvent ev) {}
+
+    public void mouseExited(MouseEvent ev) {}
+
+    public void mousePressed(MouseEvent ev) {}
+
+    public void mouseReleased(MouseEvent ev) {}
+
+    public void actionPerformed(ActionEvent e) {
+	ball.changeColor(colorList[++colorNo % colorList.length]);
+	repaint();
+    }
+
+    public void windowOpened(WindowEvent e) {}
+
+    public void windowClosing(WindowEvent e) {
+	System.exit(0);
+    }
+
+    public void windowClosed(WindowEvent e) {}
+
+    public void windowIconified(WindowEvent e) {}
+
+    public void windowDeiconified(WindowEvent e) {}
+
+    public void windowActivated(WindowEvent e) {}
+
+    public void windowDeactivated(WindowEvent e) {}
+
+    public static void main(String[] args) {
+	Frame f = new Frame("Viewer");
+	Viewer view = new Viewer();
+	f.addWindowListener(view);
+	f.add(view);
+	f.setSize(300, 300);
+	view.init();
+	view.start();
+	f.setVisible(true);
+    }
+}