import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
 
public class PanelDemo extends JFrame {
   private JPanel buttonPanel;
   private JButton buttons[];
 
   // set up GUI
   public PanelDemo()   {
      super( "Panel Demo" );
 
      // get content pane
      Container container = getContentPane();
 
      // create buttons array
      buttons = new JButton[ 5 ];
 
      // set up panel and set its layout
      buttonPanel = new JPanel();
      buttonPanel.setLayout(new GridLayout( 1, buttons.length ) );
 
      // create and add buttons
      for ( int count = 0; count < buttons.length; count++ ) {
         buttons[ count ] = new JButton( "Button " + ( count + 1 ) );
         buttonPanel.add( buttons[ count ] );
      }
 
      container.add( buttonPanel, BorderLayout.SOUTH );
 
      setSize( 425, 150 );
      setVisible( true );
   }
 
   public static void main( String args[] )   {
      PanelDemo application = new PanelDemo();
      application.setDefaultCloseOperation(
         JFrame.EXIT_ON_CLOSE );
   }
}  // end class PanelDemo