tryborderlayout.java

Java Classic Examples是我买的两本书：《JAVA经典实例》和《java入门经典源代码》里边附送光盘里带的源码

import javax.swing.*;
import java.awt.*; 
import javax.swing.border.*;               // For the border classes

public class TryBorderLayout
{
  // The window object
  static JFrame aWindow = new JFrame("This is a Border Layout"); 

  public static void main(String[] args)
  {
    Toolkit theKit = aWindow.getToolkit();       // Get the window toolkit
    Dimension wndSize = theKit.getScreenSize();  // Get screen size

    // Set the position to screen center & size to half screen size
    aWindow.setBounds(wndSize.width/4, wndSize.height/4,   // Position
                      wndSize.width/2, wndSize.height/2);  // Size
    aWindow.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);

    BorderLayout border = new BorderLayout();        // Create a layout manager
    Container content = aWindow.getContentPane();    // Get the content pane
    content. setLayout(border);                     // Set the container layout mgr

    EtchedBorder edge = new EtchedBorder(EtchedBorder.RAISED);  // Button border   

    // Now add five JButton components and set their borders
    JButton button;
    content.add(button = new JButton("EAST"), BorderLayout.EAST); 
    button.setBorder(edge);
    content.add(button = new JButton("WEST"), BorderLayout.WEST); 
    button.setBorder(edge);
    content.add(button = new JButton("NORTH"), BorderLayout.NORTH); 
    button.setBorder(edge);
    content.add(button = new JButton("SOUTH"), BorderLayout.SOUTH); 
    button.setBorder(edge);
    content.add(button = new JButton("CENTER"), BorderLayout.CENTER);
    button.setBorder(edge);

    aWindow.setVisible(true);                              // Display the window
  }
}