The source code looks like:

import java.applet.*;
import java.awt.*;
import java.awt.Graphics;

public class OvalDemo extends Applet {

	public void init() {
		resize(150, 100);
	}

	public void paint(Graphics g) {
		g.drawOval(10,10,50,50);
		g.fillOval(70,10,70,50);
	}

}