ｊａｖａ颜色控制二－－－JColorChooser

//ShowColors2.java

//Demonstrating JColorChooser.

//Java core packages

import java.awt.*;

import java.awt.event.*;

//Java extension packages

import javax.swing.*;

public class ShowColors2 extends JFrame

{

private JButton changeColorButton;

private Color color = Color.lightGray;

private Container container;

//set up GUI

public ShowColors2()

{

super("Using JColorChooser");

container = getContentPane();

container.setLayout(new FlowLayout());

//set up changeColorButton and register its event handler

changeColorButton = new JButton( "Change Color" );

changeColorButton.addActionListener(

//anonymous inner class

new ActionListener()

{

public void actionPerformed(ActionEvent event )

{

color = JColorChooser.showDialog(ShowColors2.this,"Choose a color",color);

//set default color,if no color is returned

if(color == null )

color = Color.lightGray;

//container.setBackground( color );

}//end actionPerformd

}//end of ActionListioner

);//end call to addActionListener

container.add( changeColorButton );

setSize( 400,130 );

setVisible( true );

}

//execute application

public static void main(String arges[] )

{

ShowColors2 application = new ShowColors2();

application.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );

}

}