colorchooser.java

来自「java技术内幕源代码,配合书籍看有事半功倍的效果」· Java 代码 · 共 34 行

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

/*
<APPLET
    CODE = colorchooser.class
    WIDTH = 200
    HEIGHT = 200 >
</APPLET>
*/

public class colorchooser extends JApplet implements ActionListener
{
    JPanel jpanel = new JPanel();
    JButton jbutton;

    public void init() 
    {
        jbutton = new JButton("Click here to change colors.");
        jbutton.addActionListener(this);
        jpanel.add(jbutton);
        getContentPane().add(jpanel); //, BorderLayout.CENTER);
    }

    public void actionPerformed(ActionEvent e) 
    {
        Color color = JColorChooser.showDialog(colorchooser.this, 
            "Select a new color...", Color.white); 

        jpanel.setBackground(color);
    }
}