import java.awt.Color;
import java.awt.Dimension;

import javax.swing.JPanel;


public class ColorPanel extends JPanel {

	public ColorPanel() {
		setBackground(Color.black);
		setPreferredSize(new Dimension(200, 200));
	}
	
	public void makeRed() {
		this.setBackground(Color.red);
	}

	public void makeGreen() {
		this.setBackground(Color.green);
	}


}