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

import javax.swing.*;
import javax.swing.border.*;
import javax.swing.event.*;

public class CommonLayouts extends JFrame 
{
  public CommonLayouts() {
    super("Common Layout Managers");
    setSize(500, 380);

    JDesktopPane desktop = new JDesktopPane();
    getContentPane().add(desktop);

    JInternalFrame fr1 = 
      new JInternalFrame("FlowLayout", true, true);
    fr1.setBounds(10, 10, 150, 150);
    Container c = fr1.getContentPane();
    c.setLayout(new FlowLayout());
    c.add(new JButton("1"));
    c.add(new JButton("2"));
    c.add(new JButton("3"));
    c.add(new JButton("4"));
    desktop.add(fr1, 0);

    JInternalFrame fr2 = 
      new JInternalFrame("GridLayout", true, true);
    fr2.setBounds(170, 10, 150, 150);
    c = fr2.getContentPane();
    c.setLayout(new GridLayout(2, 2));
    c.add(new JButton("1"));
    c.add(new JButton("2"));
    c.add(new JButton("3"));
    c.add(new JButton("4"));
    desktop.add(fr2, 0);

    JInternalFrame fr3 = 
      new JInternalFrame("BorderLayout", true, true);
    fr3.setBounds(330, 10, 150, 150);
    c = fr3.getContentPane();
    c.add(new JButton("1"), BorderLayout.NORTH);
    c.add(new JButton("2"), BorderLayout.EAST);
    c.add(new JButton("3"), BorderLayout.SOUTH);
    c.add(new JButton("4"), BorderLayout.WEST);
    desktop.add(fr3, 0);

    JInternalFrame fr4 = new JInternalFrame("BoxLayout - X", 
      true, true);
    fr4.setBounds(10, 170, 250, 120);
    c = fr4.getContentPane();
    c.setLayout(new BoxLayout(c, BoxLayout.X_AXIS));
    c.add(new JButton("1"));
    c.add(Box.createHorizontalStrut(12));
    c.add(new JButton("2"));
    c.add(Box.createGlue());
    c.add(new JButton("3"));
    c.add(Box.createHorizontalGlue());
    c.add(new JButton("4"));
    desktop.add(fr4, 0);

    JInternalFrame fr5 = new JInternalFrame("BoxLayout - Y", 
      true, true);
    fr5.setBounds(330, 170, 150, 180);
    c = fr5.getContentPane();
    c.setLayout(new BoxLayout(c, BoxLayout.Y_AXIS));
    c.add(new JButton("1"));
    c.add(Box.createVerticalStrut(10));
    c.add(new JButton("2"));
    c.add(Box.createGlue());
    c.add(new JButton("3"));
    c.add(Box.createVerticalGlue());
    c.add(new JButton("4"));
    desktop.add(fr5, 0);
        
    try { 
      fr1.setSelected(true); 
    } 
    catch (java.beans.PropertyVetoException ex) {}

    WindowListener wndCloser = new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    };
    addWindowListener(wndCloser);
        
    setVisible(true);
  }

  public static void main(String argv[]) {
    new CommonLayouts();
  }
}