SWING(SelectColors)

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

public class SelectColors extends JFrame
{
private JList colorList;
private Container c;

private String colorNames[] =
{ "Black", "Blue", "Cyan", "Dark Gray", "Gray", "Green",
"Light Gray", "Magenta", "Orange", "Pink", "Red",
"White", "Yellow" };

private Color colors[] =
{ Color.black, Color.blue, Color.cyan, Color.darkGray,
Color.gray, Color.green, Color.lightGray,
Color.magenta, Color.orange, Color.pink, Color.red,
Color.white, Color.yellow };

public SelectColors()
{
super( "List Test" );

c = getContentPane();
c.setLayout( new FlowLayout() );

// create a list with the items in the colorNames array
colorList = new JList( colorNames );
colorList.setVisibleRowCount( 5 );

// do not allow multiple selections
colorList.setSelectionMode( ListSelectionModel.SINGLE_SELECTION );

// add a JScrollPane containing the JList
// to the content pane
c.add( new JScrollPane( colorList ) );

// set up event handler
colorList.addListSelectionListener( new ListSelectionListener()
{
public void valueChanged( ListSelectionEvent e )
{
c.setBackground( colors[ colorList.getSelectedIndex() ] );
}
} );

setSize( 350, 150 );
show();
}

public static void main( String args[] )
{
SelectColors app = new SelectColors();

app.addWindowListener( new WindowAdapter()
{
public void windowClosing( WindowEvent e )
{
System.exit( 0 );
}
} );
}
}