usejroundbutton.java

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package jroundbutton;

import java.awt.*;
import javax.swing.JFrame;
import java.awt.event.*;

/**
 * <p>Title: Swing按钮</p>
 * <p>Description: 应用java.awt.geom包中的类制作Swing按钮</p>
 * <p>Copyright: Copyright (c) 2004</p>
 * <p>Company: 北京师范大学计算机系</p>
 * @author 张庆利
 * @version 1.0
 */

public class UseJRoundButton extends JFrame {

  public static final int DEFAULT_WIDTH = 300;
  public static final int DEFAULT_HEIGHT = 200;

  JRoundButton jRoundButton1 = new JRoundButton();

  public UseJRoundButton() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  public static void main(String[] args) {
    UseJRoundButton useJRoundButton = new UseJRoundButton();
    useJRoundButton.setSize(DEFAULT_WIDTH,DEFAULT_HEIGHT);
    useJRoundButton.show();
  }
  private void jbInit() throws Exception {
    jRoundButton1.setText("单击按钮退出程序");
    jRoundButton1.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(ActionEvent e) {
        jRoundButton1_actionPerformed(e);
      }
    });
    this.setTitle("应用geom包中的类制作Swing按钮");
    this.getContentPane().add(jRoundButton1, BorderLayout.CENTER);
  }

  void jRoundButton1_actionPerformed(ActionEvent e) {
    System.exit(1);
  }

  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      System.exit(0);
    }
  }
}