testborderlayout.java

java2 primer plus一书源程序

/*
 * TestBorderLayout.java
 *
 * Created on July 30, 2002, 11:35 AM
 */

package com.samspublishing.jpp.ch13;

import java.awt.*;
import java.awt.event.*;

/**
 *
 * @author  Stephen Potts
 * @version
 */
public class TestBorderLayout extends Frame
{
   
   TextField tfNorth;
   TextField tfCenter;
   TextField tfSouth;
   TextField tfEast;
   TextField tfWest;
   
   /** Creates new TestBorderLayout */
   public TestBorderLayout()
   {
      tfNorth = new TextField("North");
      tfCenter= new TextField("Center");
      tfSouth = new TextField("South");
      tfEast = new TextField("East");
      tfWest = new TextField("West");
      
      Panel pNorth = new Panel();
      pNorth.add(tfNorth);

      Panel pCenter = new Panel();
      pCenter.setBackground(Color.darkGray);
      pCenter.add(tfCenter);

      Panel pSouth = new Panel();
      pSouth.add(tfSouth);

      Panel pEast = new Panel();
      pEast.setBackground(Color.gray);
      pEast.add(tfEast);

      Panel pWest = new Panel();
      pWest.setBackground(Color.gray);
      pWest.add(tfWest);

      add(pNorth, BorderLayout.NORTH);
      add(pCenter, BorderLayout.CENTER);
      add(pSouth, BorderLayout.SOUTH);
      add(pEast, BorderLayout.EAST);
      add(pWest, BorderLayout.WEST);
            
      addWindowListener(new WinCloser());
      setTitle("Using a BorderLayout");
      setBounds( 100, 100, 300, 300);
      setVisible(true);
   }
   
   public static void main(String[] args)
   {
      TestBorderLayout tbl = new TestBorderLayout();
   }
   
}

class WinCloser extends WindowAdapter
{
   public void windowClosing(WindowEvent e)
   {
      System.exit(0);
   }
}