Java tutorial
import java.awt.Frame; import java.awt.Graphics; import java.awt.Graphics2D; public class MainClass extends Frame { public static void main(String[] args) { (new MainClass()).setVisible(true); } public MainClass() { super("Shape Sampler"); setSize(400, 550); } public void paint(Graphics g) { Graphics2D g2d = (Graphics2D) g; g2d.fillOval(48, 298, 5, 5); } }