import java.awt.Canvas; 
import java.awt.Color; 
import java.awt.Frame; 
import java.awt.Graphics; 

public class RedSquare extends Canvas 
{ 

	public RedSquare ( ) 
	{ 

		setSize( 800 , 500 ); 

		Frame frame = new Frame( ); 
		frame.setSize( 800 , 500 ); 
		frame.setVisible( true ); 
		frame.add( this ); 

	} 

	public void paint ( Graphics graphicsX ) 
	{ 

		graphicsX.setColor( Color.RED ); 
		graphicsX.fillRect( 0 , 0 , 200 , 200 ); 

	} 

	public static void main ( String [ ] argumentsX ) 
	{ 

		new RedSquare( ); 

	} 

}