Thread: How to display a Rectangle object in JFrame (Problem).

The frame is displayed empty,, so how to make the Rectangle object visible

package rectang;
 
import javax.swing.*;
import java.awt.*;
import java.awt.Graphics.*;
 
public class RectAn extends JFrame
{
 
   public void paint(Graphics g)
   {
      super.paint(g);
      Rectangle r1 = new Rectangle(); //Here is the object I mean. 
      r1.setBounds(20, 20, 40, 50);    //Setting its bounds.
   }
 
   public RectAn(String title)
   {
      super(title);
      this.setSize(400, 400);
      setDefaultCloseOperation(EXIT_ON_CLOSE);
   }
}

Main method

package rectang;
 
public class RectanG
{
 
   public static void main(String[] args)
   {
      RectAn r = new RectAn("Rectangle");
      r.setVisible(true);
   }
}