How To Change Background Color In Java

Background Colour Changer in Java Program

import java.awt*;

import java.awt.event.*;

import javax.Swing.*;

public class MainClass extends JPanel implements ActionListener

{

TextField text=new TextField(20);

private int numClicks=0;

public Static void main(String args[])

{

JFrame frame=new JFrame();

frame.getContentPane().add(new MainClass());

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setTitle("Button Test");

frame.setSize(200,200);

frame.setVisible(true);

}

public MainClass()

{

JButton btn1=new JButton("Button1");

btn1.addActionListener(this);

add(btn);

}

public void actionPerformed(ActionEvent e)

{

setBackground(color.red);

}

}