Need help with java mini game

[Dan Bois]

Every time i try and run this program it gives me an error saying "cannot find symbol constructor AnimationThread" The error occures on line 26

I was woundering if someone could please please help me with this
Thx!!

import java.awt.*;
import java.applet.*;
import javax.swing.*;
import java.awt.geom.*;
import java.util.concurrent.*;
import java.awt.event.*;



public class Pong extends Applet 
{
    public static final int WIDTH = 400;
    public static final int HEIGHT = 400;

    private PaintSurface canvas;

    public void init() 
    {
        this.setSize(WIDTH, HEIGHT);

        canvas = new PaintSurface();

        this.add(canvas, BorderLayout.CENTER);
        ScheduledThreadPoolExecutor executor =
                new ScheduledThreadPoolExecutor(3);
        executor.scheduleAtFixedRate(new AnimationThread(this),
                0L, 20L, TimeUnit.MILLISECONDS);

    }
}

class AnimationThread implements Runnable
{
    JApplet c;

    public AnimationThread(JApplet c)
    {
        this.c = c;
    }

    public void run()
    {
        c.repaint();
    }
}

    class PaintSurface extends JComponent
    {
        int paddle_x = 0;
        int paddle_y = 360;

        int score = 0;
        float english = 1.0f;

        Ball ball;

        Color[] color = {Color.RED, Color.ORANGE, Color.MAGENTA, 
                            Color.ORANGE, Color.CYAN, Color.BLUE};
        int colorIndex;


        public PaintSurface()
        {
            addMouseMotionListener(new MouseMotionAdapter()
                {
                    public void mouseMoved(MouseEvent e)
                    {
                        if (e.getX() - 30 - paddle_x > 5)
                            english = 1.5f;
                        else if (e.getX() - 30 - paddle_x < -5)
                            english = -1.5f;
                        else 
                            english = 1.0f;
                        paddle_x = e.getX()- 30;
                    }
                });
            ball = new Ball(20);
        }


    public void paint (Graphics g)
    {
        Graphics2D g2 = (Graphics2D)g;
        g2.setRenderingHint(
        RenderingHints.KEY_ANTIALIASING,
        RenderingHints.VALUE_ANTIALIAS_ON);
        Shape paddle = new Rectangle2D.Float(
            paddle_x, paddle_y, 60, 8);

        g2.setColor(color[colorIndex % 6]);

        if (ball.intersects(paddle_x, paddle_y, 60, 8)
            && ball.y_speed > 0)
        {
            ball.y_speed = -ball.y_speed;
            ball.x_speed = (int)(ball.x_speed * english);
            if (english != 1.0f)
                colorIndex++;
            score += Math.abs(ball.x_speed * 10);
        }

        if (ball.getY() + ball.getHeight()
            >= Pong.HEIGHT)
        {
            ball = new Ball(20);
            score -= 1000;
            colorIndex = 0;
        }
        ball.move();
        g2.fill(ball);

        g2.setColor(Color.BLACK);
        g2.fill(paddle);
        g2.drawString("Score: " + score, 250, 20);


    }
}

class Ball extends Ellipse2D.Float
{
    public int x_speed, y_speed;
    private int d;
    private int width = Pong.WIDTH;
    private int height = Pong.HEIGHT;

    public Ball(int diameter)
    {
        super((int)(Math.random() * (Pong.WIDTH - 20) +1), 
            0, diameter, diameter);

        this.d = diameter;
        this.x_speed = (int)(Math.random() * 5 + 5);
        this.y_speed = (int)(Math.random() * 5 + 5);
    }

    public void move()
    {
        {
            if(super.x < 0 || super.x > width - d)
            {
                x_speed = -x_speed;
            }

            if(super.y < 0 || super.y > height - d)
            {
                y_speed = -y_speed;
            }

            super.x += x_speed;
            super.y += y_speed;
        }
    }
}

[quuba]

public class Pong extends JApplet {

quuba