jcolorchooserdemo.java

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import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class JColorChooserDemo extends JFrame 
{
	private JButton changeColorButton;
	private Color color = Color.WHITE;
	private Container container;

	public JColorChooserDemo()
	{
		super("使用 颜色选择对话框");
		
		//获取内容窗格
		container = getContentPane();
		container.setLayout(new FlowLayout(FlowLayout.CENTER));
		
		//创建按钮,并为其注册事件处理器
		changeColorButton = new JButton("Change Color");
		changeColorButton.setFont(new Font("Serif", Font.PLAIN, 14));
		changeColorButton.setBackground(Color.WHITE);
		
		changeColorButton.addActionListener(
				new ActionListener(){         //匿名类
					//按下按钮时显示颜色选择对话框
					public void actionPerformed(ActionEvent event)
					{
						//该方法返回客户选择的颜色 
						color = JColorChooser.showDialog(JColorChooserDemo.this,
								"Choose a color", color);
						
						//如果客户没有选择颜色，则返回默认的颜色
						if(color == null)
							color = Color.WHITE;
						//改变当前容器的背景色
						container.setBackground(color);
					}
				});
		
		//把按钮添加到容器container当中
		container.add(changeColorButton);
		
		setSize(400,130);   
		setVisible(true);
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	} 
	
	public static void main(String[] args) {
		JColorChooserDemo application = new JColorChooserDemo();
	}
}