ADVANCED GUIS AND GRAPHICS - Java Programming: From Problem Analysis to Program Design - page 843

BorderLayout
The BorderLayout manager allows you to place items in specific regions. This layout
manager divides the container into five regions: NORTH , SOUTH , EAST , WEST , and CENTER .
Components placed in the NORTH and SOUTH regions extend horizontally, completely
spanning one edge to the other. EAST and WEST components extend vertically between
the components in the NORTH and SOUTH regions. The component placed at the CENTER
expands to occupy any unused regions.
In the following example, we create five components and place them in the content pane
using the BorderLayout manager:
//Program to illustrate BorderLayout

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

public class BorderLayoutExample extends JFrame
{

private static int WIDTH = 350;
private static int HEIGHT = 300;

//GUI components
private JLabel labelJL;
private JTextField textFieldTF;
private JButton buttonJB;
private JCheckBox checkboxCB;
private JRadioButton radioButtonRB;
private JTextArea textAreaTA;

private BorderLayout borderLayoutMgr;

public BorderLayoutExample()
{

setTitle("BorderLayout Manager");
Container pane = getContentPane();
setSize(WIDTH, HEIGHT);

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borderLayoutMgr = new BorderLayout(10, 10);
pane.setLayout(borderLayoutMgr);

labelJL = new JLabel("North Component");
textAreaTA = new JTextArea(10, 20);
textAreaTA.setText("South Component.\n");
textAreaTA.append(
"Use the mouse to change the size of the window.");
buttonJB = new JButton("West Component");
checkboxCB = new JCheckBox("East Component");
radioButtonRB = new JRadioButton("Center Component");