import javax.swing.JPanel;

import javax.swing.JFrame;

import javax.swing.JButton;

import java.awt.event.ActionListener;

import java.awt.event.ActionEvent;

import java.awt.Color;

public class ButtonFrame extends JFrame{

private JPanel panel;

private JButton button;

ButtonFrame(){

setSize(200,100);

panel = new JPanel();

button = new JButton();

ButtonListener a = new ButtonListener(Color.RED);

button.addActionListener(a);

panel.add(button);

add(panel);

}

private class ButtonListener implements ActionListener{

private Color backgroundColor;

ButtonListener(Color c){

backgroundColor = c;

}

public void actionPerformed(ActionEvent e){

panel.setBackground(backgroundColor);

}

}

}

class ButtonFrameTest{

public static void main(String[] args){

ButtonFrame a = new ButtonFrame();

a.setVisible(true);

}

}