Board.java

import java.awt.Color;
import java.awt.Graphics;
import java.awt.KeyEventDispatcher;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;

import javax.swing.JPanel;

public class Board extends JPanel implements Runnable {
    private static final long serialVersionUID = -6980446336015276827L;
    static int leftscore = 0;
    static int rightscore = 0;
    private Thread thread;

    public void addNotify() {
        super.addNotify();
        thread = new Thread(this);
        thread.start();
    }

    public void paint(Graphics g) {
        super.paint(g);
        setBackground(Color.BLACK);
        g.setColor(Color.WHITE);
        for (int i = 0; i < 510; i += 16) {
            g.fillRect(340, i + 2, 1, 8);
        }

        g.fillRect(151, 34, 38, 64);
        g.setColor(Color.BLACK);
        if (leftscore == 0) {
            g.fillRect(161, 44, 18, 44);
        } else if (leftscore == 1) {
            g.fillRect(151, 34, 28, 64);
        } else if (leftscore == 2) {
            g.fillRect(151, 44, 28, 17);
            g.fillRect(161, 71, 28, 17);
        } else if (leftscore == 3) {
            g.fillRect(151, 44, 28, 17);
            g.fillRect(151, 71, 28, 17);
        } else if (leftscore == 4) {
            g.fillRect(161, 34, 18, 27);
            g.fillRect(151, 71, 28, 27);
        } else if (leftscore == 5) {
            g.fillRect(161, 44, 28, 17);
            g.fillRect(151, 71, 28, 17);
        } else if (leftscore == 6) {
            g.fillRect(161, 44, 28, 17);
            g.fillRect(161, 71, 18, 17);
        } else if (leftscore == 7) {
            g.fillRect(151, 44, 28, 54);
        } else if (leftscore == 8) {
            g.fillRect(161, 44, 18, 17);
            g.fillRect(161, 71, 18, 17);
        } else if (leftscore == 9) {
            g.fillRect(161, 44, 18, 17);
            g.fillRect(151, 71, 28, 27);
        } else if (leftscore == 10) {
            g.fillRect(161, 44, 18, 44);
            g.setColor(Color.WHITE);
            g.fillRect(131, 34, 10, 64);
        }
        g.setColor(Color.WHITE);
        g.fillRect(491, 34, 38, 64);
        g.setColor(Color.BLACK);
        if (rightscore == 0) {
            g.fillRect(501, 44, 18, 44);
        } else if (rightscore == 1) {
            g.fillRect(491, 34, 28, 64);
        } else if (rightscore == 2) {
            g.fillRect(491, 44, 28, 17);
            g.fillRect(501, 71, 28, 17);
        } else if (rightscore == 3) {
            g.fillRect(491, 44, 28, 17);
            g.fillRect(491, 71, 28, 17);
        } else if (rightscore == 4) {
            g.fillRect(501, 34, 18, 27);
            g.fillRect(491, 71, 28, 27);
        } else if (rightscore == 5) {
            g.fillRect(501, 44, 28, 17);
            g.fillRect(491, 71, 28, 17);
        } else if (rightscore == 6) {
            g.fillRect(501, 44, 28, 17);
            g.fillRect(501, 71, 18, 17);
        } else if (rightscore == 7) {
            g.fillRect(491, 44, 28, 54);
        } else if (rightscore == 8) {
            g.fillRect(501, 44, 18, 17);
            g.fillRect(501, 71, 18, 17);
        } else if (rightscore == 9) {
            g.fillRect(501, 44, 18, 17);
            g.fillRect(491, 71, 28, 27);
        } else if (rightscore == 10) {
            g.fillRect(501, 44, 18, 44);
            g.setColor(Color.WHITE);
            g.fillRect(471, 34, 10, 64);
        }

        g.setColor(Color.WHITE);
        g.fillRect(80, 223, 10, 64);
        g.fillRect(600, 223, 10, 64);
    }

    public void run() {
        while (true) {
            repaint();
        }
    }
}