basicjframe.java

Java程序设计技巧与开发实例附书源代码。

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

public class BasicJFrame
    extends JFrame
    implements ActionListener
{ // any fields go here
   public BasicJFrame()
   {
      super("Basic JFrame Program");
      setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
      // additional methods go here
      validate();
      pack();
      setVisible(true);
   }

   public void actionPerformed(ActionEvent ae)
   {
      /* event-handling code goes here */}

   public static void main(String args[])
   {
      try
      {
         String theLook = "javax.swing.plaf.metal.MetalLookAndFeel";
         UIManager.setLookAndFeel(theLook);
      }
      catch (Exception e)
      {
         System.err.println("Exception: " + e);
      }
      BasicJFrame bjf = new BasicJFrame();
   }
}