طريقة اخيار الالوان في الجافا بثلاث طرق switches ,HSB,RGB

// Fig. 12.8: ShowColors2.java
// Choosing colors with JColorChooser.
import javax.swing.JFrame;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JColorChooser;
import javax.swing.JPanel;

public class ShowColors2
{
// execute application
public static void main( String[] args )
{
ShowColors2JFrame application = new ShowColors2JFrame();
application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
} // end main
} // end class ShowColors2
// Fig. 12.7: ShowColors2JFrame.java
// Choosing colors with JColorChooser.

class ShowColors2JFrame extends JFrame
{
private JButton changeColorJButton;
private Color color = Color.LIGHT_GRAY;
private JPanel colorJPanel;

// set up GUI
public ShowColors2JFrame()
{
super( "Using JColorChooser" );

// create JPanel for display color
colorJPanel = new JPanel();
colorJPanel.setBackground( color );

// set up changeColorJButton and register its event handler
changeColorJButton = new JButton( "Change Color" );
changeColorJButton.addActionListener(

new ActionListener() // anonymous inner class
{
// display JColorChooser when user clicks button
public void actionPerformed( ActionEvent event )
{
color = JColorChooser.showDialog(
ShowColors2JFrame.this, "Choose a color", color );

// set default color, if no color is returned
if ( color == null )
color = Color.LIGHT_GRAY;

// change content pane's background color
colorJPanel.setBackground( color );
} // end method actionPerformed
} // end anonymous inner class
); // end call to addActionListener

add( colorJPanel, BorderLayout.CENTER ); // add colorJPanel
add( changeColorJButton, BorderLayout.SOUTH ); // add button

setSize( 400, 130 ); // set frame size
setVisible( true ); // display frame
} // end ShowColor2JFrame constructor
} // end class ShowColors2JFrame