Java GUI >> Draw a Rectangle

gistfile1.java

import javax.swing.JFrame;
import java.awt.Graphics;
import java.awt.Color;
public class MyGUI extends JFrame
{
        public MyGUI()
	{
		
		setTitle("Tutorial");
		setSize(960,960);
		setVisible(true);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		
		
		
	}
	
	
	public void paint(Graphics g) 
	{
		g.setColor(Color.RED);
		g.drawRect(480, 480, 200, 100);
		g.setColor(Color.BLUE);
		g.fillRect(240, 240, 200, 100);
	}
	
	public static void main(String[] args) 
	{
		
		MyGUI frame = new MyGUI();
		frame.paint(null);
		
	}
	
	

}