Thread: Animation in JApplet

Hi everyone,

I'm trying to create a very simple animation applet, but it doesn't seem to be working very well. For some reason, the background color isn't changing and the graphics aren't being drawn to the applet. I think the Thread is also causing some issues. Any help would be greatly appreciated.

import java.awt.*;
import javax.swing.*;
 
public class Animation extends JApplet {
 
	int x = 10;
	int y = 10;
	Drawing d;
 
 
	public void init(){
		setSize(500, 500);
		d = new Drawing();
		Container content = getContentPane();
 
		content.add(d, BorderLayout.CENTER);
		content.setVisible(true);
	}
 
	public void start(){
		go(); 
	}
 
	public void go(){
 
		for (int i = 0; i < 330; i++){
			x++;
			y++;
			d.repaint();
 
			try{
				Thread.sleep(20);
			} catch (Exception ex){}
		}
 
	}
	public class Drawing extends JPanel {
	    public void paintComponent(Graphics g) {
	         super.paint(g); 
	         Graphics2D g2 = (Graphics2D) g;
	         this.setBackground(Color.BLACK);
	         g.setColor(Color.ORANGE);
	         g.fillOval(x, y, 30, 30);
	    }
	}
 
}