button.java~9~

java2参考大全上的例子的源码和自己的理解.

package button;

import java.awt.*;
import java.applet.Applet;

public class Button
    extends Applet {
  Font font;
  Button b1;
  int y;
  public void init() {
    font = new Font("TimesRoman", Font.BOLD, 20);
    b1 = new Button("push");
    add(b1);
    setFont(font);
  }

  public boolean action(Event evt, Object arg) {
    y += 5;
    repaint();
    return true;
  }

  public void Paint(Graphics g) {
    g.drawString("Button", 10, y);
  }
}