Connecting colour to the ball

I don't know how to connect the color to make it change the
ball...any
help???

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Formatter;
import javax.swing.*;
import java.io.File;
import javax.sound.sampled.*;
import helpers.GlobalProperties;
import java.awt.Color;
import java.util.Random;
//private Color ballColor = null;
public class AnimationSound extends JPanel {
    private static final int BOX_WIDTH = 640;
    private static final int BOX_HEIGHT = 480;
    private static final int RATE = 30;
    private File soundFile = new File("resources/snd16.wav");
    private Clip clip;
    private float ballRadius = 50;
    private float ballX = 250 - ballRadius;
    private float ballY = 250 - ballRadius;
    private float ballSpeedX = 10;
    private boolean randomColorMode = false;
    private Color ballColor = null, numberColor = null;
    private Color backgroundColor;
    public AnimationSound() {
        this.setPreferredSize(new Dimension(BOX_WIDTH, BOX_HEIGHT));
        // Prepare a Clip
        try {
            AudioInputStream audioInputStream =
                AudioSystem.getAudioInputStream(soundFile);
            AudioFormat audioFormat = audioInputStream.getFormat();
            DataLine.Info dataLineInfo =
                new DataLine.Info(Clip.class, audioFormat);
            clip = (Clip) AudioSystem.getLine(dataLineInfo);
            clip.open(audioInputStream);
        } catch (Exception e) {
            e.printStackTrace(System.err);
        }
        Timer timer = new Timer(1000 / RATE, new ActionListener() {
            @Override
            public void actionPerformed(ActionEvent e) {
                ballX += ballSpeedX;
                if (ballX - ballRadius < 0) {
                    ballSpeedX = -ballSpeedX;
                    ballX = ballRadius;
                    playSound();
                    //getParameters();
                } else if (ballX + ballRadius > BOX_WIDTH) {
                    ballSpeedX = -ballSpeedX;
                    ballX = BOX_WIDTH - ballRadius;
                    playSound();
                    //getParameters();
                }
                repaint();
            }
        });
        timer.start();
    }
    // Play the sound in a separate thread.
    private void playSound() {
        Runnable soundPlayer = new Runnable() {
            @Override
            public void run() {
                try {
                    clip.setMicrosecondPosition(0);
                    clip.start();
                } catch (Exception e) {
                    e.printStackTrace();
                }
            }
        };
        new Thread(soundPlayer).start();
    }
    private void getColors() {
                if(randomColorMode){
                        Random ran = new Random();
                        int ranInt = ran.nextInt(4);
                        switch(ranInt){
                        case 0: ballColor = Color.white;break;
                        case 1: ballColor = Color.blue;break;
                        case 2: ballColor = Color.yellow;break;
                        default: ballColor = Color.red;break;
                        }
                }
                if(ballColor.equals(Color.white)){
                        numberColor = Color.red;
                        backgroundColor = Color.black;
                }
                else if(ballColor.equals(Color.blue)){
                        numberColor = Color.yellow;
                        backgroundColor = Color.black;
                }
                else if(ballColor.equals(Color.yellow)){
                        numberColor = Color.black;
                        backgroundColor = Color.black;
                }
                else{
                        numberColor = Color.white;
                        backgroundColor = Color.black;
                }
        }
    private void getParameters() {
        if(ballColor.equals(Color.black))
                        randomColorMode = true;
                else
                        randomColorMode = false;
                getColors();
    }
    @Override
    public void paintComponent(Graphics g) {
        super.paintComponent(g); // Paint background
        //getParameters();
        g.setColor(backgroundColor);
        g.fillRect(0, 0, BOX_WIDTH, BOX_HEIGHT);
        g.setColor(ballColor);
        //this.getParameters();
        g.fillOval(
            (int) (ballX - ballRadius),
            (int) (ballY - ballRadius),
            (int) (2 * ballRadius), (int) (2 * ballRadius));
        g.setColor(ballColor);
        g.setFont(new Font("Dialog", Font.PLAIN, 12));
        StringBuilder sb = new StringBuilder();
        Formatter formatter = new Formatter(sb);
        formatter.format(
            "Ball @(%3.0f) Speed=(%2.0f)", ballX, ballSpeedX);
        g.drawString(sb.toString(), 20, 30);
    }
    public static void main(String[] args) {
        javax.swing.SwingUtilities.invokeLater(new Runnable() {
            @Override
            public void run() {
                JFrame frame = new JFrame("A Moving Ball");
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setContentPane(new AnimationSound());
                frame.pack();
                frame.setVisible(true);
            }
        });
    }
}