Java SE (Java Platform, Standard Edition)

import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;

class SomeShape extends JPanel {
	protected static float width; 
	protected BasicStroke line = new BasicStroke(width, BasicStroke.CAP_ROUND, BasicStroke.CAP_ROUND);
}

class Oval extends SomeShape {
	Oval(float width) {
		this.width = width;
		line = new BasicStroke(width, BasicStroke.CAP_ROUND, BasicStroke.CAP_ROUND);
		repaint();
	}
	public void paint(Graphics g) {
		Graphics2D pen = (Graphics2D)g;
		int i = 10;
		super.paint(g);
			g.setColor(Color.blue);
			g.drawOval(90, 0+i, 90, 90);
			System.out.println("paint()");
	}
}

public class FinalVersionFactory {
    JFrame f = new JFrame();
    Container cp = f.getContentPane();
    float width = 0;
    
    SomeShape getShape() {
    	return new Oval(width++); //I want to paint this oval when I call getShape() method
    }
    
	public FinalVersionFactory() {
		f.setSize(400, 400);
//		cp.add(new Oval()); without adding
		cp.addMouseListener(new MouseAdapter() {
			public void mouseReleased(MouseEvent e) {
				getShape();
			}
		});
		f.setVisible(true);
	}
	public static void main(String[] args) { new FinalVersionFactory(); }
}

I need help. When I cliked on the JFrame nothing happened. I want to call paint() method and paint Oval when I create new Oval() object in getShape(). Can you correct my mistakes? I tried everything...Thank you.