Slip No 30 Q B

Write a java program in multithreading using applet for moving car.

import java.applet.Applet;
import java.awt.*;
 
public class MovingCarApplet extends Applet implements Runnable {
    int x = 0;  // Initial x-coordinate of the car
    Thread t;

    public void init() {
        setBackground(Color.cyan);
        setSize(600, 200);
    }

    public void start() {
        t = new Thread(this);
        t.start();
    }

    public void run() {
        try {
            while (true) {
                x += 5; // Move car 5 pixels at a time
                if (x > getWidth()) {
                    x = -100; // Reset to start from left
                }
                repaint(); // Call paint() to redraw car
                Thread.sleep(100); // Delay for smooth animation
            }
        } catch (InterruptedException e) {
            System.out.println(e);
        }
    }

    public void paint(Graphics g) {
        // Draw the ground
        g.setColor(Color.green);
        g.fillRect(0, 150, getWidth(), 50);

        // Draw the car body
        g.setColor(Color.red);
        g.fillRect(x, 120, 100, 30); // Main body
        g.fillRect(x + 20, 100, 60, 20); // Top body

        // Draw the wheels
        g.setColor(Color.black);
        g.fillOval(x + 20, 145, 20, 20); // Left wheel
        g.fillOval(x + 60, 145, 20, 20); // Right wheel
    }
}