Assignment 43, Frame with a Panel with Writing on it

Code

   ///Name: Stella Koliavas
   ///Period: 5
   ///Program Name: Frame W Panel
   ///File Name: FrameWPaneljava
   ///Date Finshed: 11/03/15

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

   public class FrameWPanel
   {
    public static void main(String [] args)
    {
        Frame613 f = new Frame613();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
        f.setVisible(true);
    }
   }

   class Frame613 extends JFrame
   {
    public Frame613()
    {
        setTitle("613 rocks!");
        setSize(300,200);
        setLocation(100,200);
        
        Panel613 panel = new Panel613();
        Container cp = getContentPane();
        cp.add(panel);
    }
   }

   class Panel613 extends JPanel
   {
    public void paintComponent( Graphics g)
    {
        super.paintComponent(g);
        g.drawString("Hi", 75, 100);
    }
   }  
        
        
        
    

Picture of the output