import java.awt.Canvas;
import java.awt.Graphics;
import javax.swing.JFrame;
 
public class Drawing extends Canvas {
    public static void main(String[] args) {
        JFrame frame = new JFrame("My Drawing");
        Canvas canvas = new Drawing();
        canvas.setSize(400, 400);
        frame.add(canvas);
        frame.pack();
        frame.setVisible(true);
    }
 
    public void paint(Graphics g) {
        g.fillOval(100, 100, 200, 200);
    }
}

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