Game java part 1

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


//@SuppressWornings("serial")

public class Ball extends JFrame{




    final int MAX_BALL = 3;
    final int SQUERE_WIDTH = 9;
    final int SQUERE_HIGHT = 9;
    final int BALL_SIZE = 32;

    final int PANEL_WIDTH = SQUERE_WIDTH * BALL_SIZE ;

    final Color BACKGROUNG_COLOUR = new Color(225, 141, 198);
    final Color SQUERE_COLOUR = new Color(171, 225, 224);

    public Ball(JPanel panel) throws HeadlessException {
        this.panel = panel;
    }

    final Color [] BALL_COLOUR =
            {
                    Color.RED,Color.BLUE,Color.GREEN,Color.CYAN,Color.ORANGE
            };
    JPanel panel;
    JLabel lpoints;
    JButton bStart;
    GameArea gameArea;



    public Ball()
    {
        super("Ball");
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        panel = new JPanel();
        gameArea = new GameArea();
        panel.setLayout(null);
        panel.setBackground(BACKGROUNG_COLOUR);

        gameArea.setBounds(10, 10, 300, 300);
        gameArea.setBackroumnd(SQUERE_COLOUR);

        panel.add(gameArea);

        add(panel);

        setSize(400,4000);
        setLocationRelativeTo(null);
        setResizable(false);
        setVisible(true);
    }

    public static void main (String[] args) {new Ball();}
}