Java Code

import java.awt.*;
import javax.swing.*;
public class OpaqueEx extends JApplet
{
   
   JCheckBox cb1, cb2, cb3;
   JPanel pane;
   public void init( )
   {
		setLayout( new FlowLayout( ) );
		pane = new JPanel( );
		pane.setBackground( Color.ORANGE );

		cb1 = new JCheckBox( "periwinkle" );

		cb2 = new JCheckBox( "snowflake" );
		cb2.setBackground( Color.ORANGE );

		cb3 = new JCheckBox( "magenta" );
		cb3.setOpaque(false);

		pane.add( cb1 );
		pane.add( cb2 );
		pane.add( cb3 );
		add( pane );
   }
}