Thread: Pong Overflow Error

I can't figure out this problem that I'm having in my Pong game. It's compiling fine, except when I run it, it gives me an overflow error.

Here's my code: PONG IN JAVA (CLASS/HOME) - Pastebin.com

I learned a bit in my school (about Graphics) that's helped me and over the internet but other then that, I'm doing this by myself.

Here's the code:

// Pong
import javax.swing.JFrame;
import java.awt.Color;
import java.awt.Graphics;
 
public class Pong extends JFrame
{
        private static final int WIDTH = 400;
        private static final int HEIGHT = 400;
 
        Ball b = new Ball();
        Paddle p1 = new Paddle();
        Paddle p2 = new Paddle();
 
        protected int x;
        protected int y;
 
 
        public Pong()
        {
                b.setSize(30, 30);
                b.setColor(Color.BLUE);
                b.setX(20);
                b.setY(20);
 
                p1.setSize(40, 40);
                p1.setColor(Color.RED);
                p1.setX(50);
                p1.setY(50);
 
                p2.setSize(40, 40);
                p2.setColor(Color.RED);
                p2.setX(100);
                p2.setY(100);
 
                add(b);
                add(p1);
                add(p2);
                getContentPane().repaint();
        }
 
 
        public void paint(Graphics g)
        {
 
        }
 
        public void setColor(Color c)
        {
 
        }
 
        public boolean collides(boolean a)
        {
                return a;
        }
 
        public void setSize(int width, int height)
        {
 
        }
 
        /*public void setX(int i)
        {
                x = i;
        }
 
        public void setY(int i)
        {
                y = i;
        }
 
        public int getX()
        {
                return x;
        }
 
        public int getY()
        {
                return y;
        }*/
 
        public static void main(String args[])
        {
                Pong frame = new Pong();
 
                frame.setSize(WIDTH, HEIGHT);
                frame.setTitle("Pong");
                frame.setResizable(false);
                frame.setVisible(true);
                frame.setLocationRelativeTo(null);
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        }
}

// Ball
import java.awt.Color;
import java.awt.Graphics;
 
public class Ball extends Pong
{
        public Ball()
        {
                /*
                b.setSize(30, 30);
                b.setColor(Color.BLUE);
                b.setX(20);
                b.setY(20);
                */
        }
 
        public void paint(Graphics g)
        {
 
        }
 
        public void setColor(Color c)
        {
 
        }
 
        public void setSize(int width, int height)
        {
 
        }
 
        public void setX(int i)
        {
                x = i;
        }
 
        public void setY(int i)
        {
                y = i;
        }
 
        public int getX()
        {
                return x;
        }
 
        public int getY()
        {
                return y;
        }
}

// Paddle
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.*;
 
public class Paddle extends Pong implements KeyListener
{
        public Paddle()
        {
                /*
                p1.setColor(Color.RED);
                p1.setX(50);
                p1.setY(50);
 
                p2.setSize(40, 40);
                p2.setColor(Color.RED);
                p2.setX(100);
                p2.setY(100);
                */
        }
 
        public void paint(Graphics g)
        {
 
        }
 
        public void setColor(Color c)
        {
 
        }
 
        public void setSize(int width, int height)
        {
 
        }
 
        public void setX(int i)
        {
                x = i;
        }
 
        public void setY(int i)
        {
                y = i;
        }
 
        public int getX()
        {
                return x;
        }
 
        public int getY()
        {
                return y;
        }
 
        public void keyPressed(KeyEvent e)
        {
 
        }
 
        public void keyReleased(KeyEvent e)
        {
 
        }
 
        public void keyTyped(KeyEvent e)
        {
 
        }
 
}

Here's the error:
java.lang.StackOverflowError
at sun.awt.AppContext.get(AppContext.java:604)
at com.sun.java.swing.SwingUtilities3.getDelegateRepa intManager(SwingUtilities3.java:120)
at javax.swing.RepaintManager.getDelegate(RepaintMana ger.java:1625)
at javax.swing.RepaintManager.addDirtyRegion(RepaintM anager.java:445)
at javax.swing.JComponent.repaint(JComponent.java:479 5)
at java.awt.Component.repaint(Component.java:3286)
at javax.swing.JComponent.setBackground(JComponent.ja va:2733)
at javax.swing.LookAndFeel.installColors(LookAndFeel. java:175)
at javax.swing.LookAndFeel.installColorsAndFont(LookA ndFeel.java:211)
at javax.swing.plaf.basic.BasicPanelUI.installDefault s(BasicPanelUI.java:66)
at javax.swing.plaf.basic.BasicPanelUI.installUI(Basi cPanelUI.java:56)
at javax.swing.JComponent.setUI(JComponent.java:664)
at javax.swing.JPanel.setUI(JPanel.java:153)
at javax.swing.JPanel.updateUI(JPanel.java:126)
at javax.swing.JPanel.<init>(JPanel.java:86)
at javax.swing.JPanel.<init>(JPanel.java:109)
at javax.swing.JPanel.<init>(JPanel.java:117)
at javax.swing.JRootPane.createGlassPane(JRootPane.ja va:545)
at javax.swing.JRootPane.<init>(JRootPane.java:365)
at javax.swing.JFrame.createRootPane(JFrame.java:277)
at javax.swing.JFrame.frameInit(JFrame.java:258)
at javax.swing.JFrame.<init>(JFrame.java:181)
at Pong.<init>(Pong.java:19)
at Ball.<init>(Ball.java:7)
at Pong.<init>(Pong.java:10)
at Ball.<init>(Ball.java:7)
at Pong.<init>(Pong.java:10)
at Ball.<init>(Ball.java:7)
at Pong.<init>(Pong.java:10)
at Ball.<init>(Ball.java:7)
at Pong.<init>(Pong.java:10)
at Ball.<init>(Ball.java:7)
at Pong.<init>(Pong.java:10)
at Ball.<init>(Ball.java:7)
at Pong.<init>(Pong.java:10)
at Ball.<init>(Ball.java:7)
at Pong.<init>(Pong.java:10)
at Ball.<init>(Ball.java:7)
at Pong.<init>(Pong.java:10)
------------------------------------------------------------------------------------------------------------
The error keeps going for a lot of more lines.

The line that gets highlighted is the first bracket of the Pong constructor.

Does the compiler mention which line actually causes the overflow?

Overflow can have a variety of meanings - from placing to much on a stack frame
to over-writing memory boundaries within an array.

Wishes Ada xx