Questions on java (basic) graphics program

[KiranJyothi]

Hello everybody,
While I am doing the program( pasted below ), I am able to see the frame but not the rectangles. Can anyone please help me to get it done.

Thanks in advance.
KiranJyothi

import java.awt.Graphi cs;
import java.awt.Graphi cs2D;
import java.awt.Rectan gle;
import javax.swing.JPa nel;
import javax.swing.JCo mponent;

public class Rectangle1 extends JComponent

{

public void painComponent( Graphics g )

{

Graphics2D g2 = ( Graphics2D ) g;

Rectangle box = new Rectangle( 5, 10, 20, 30 );
g2.draw( box );

box.translate( 15, 25 );

g2.draw( box );

}

}

/* Driver Class */

import javax.swing.JFr ame;

public class RectangleViewer

{

public static void main( String args[] )

{

JFrame frame = new JFrame();

final int FRAME_WIDTH = 300;
final int FRAME_HEIGHT = 700;

frame.setSize( FRAME_WIDTH,FRA ME_HEIGHT );
frame.setTitle( "MyRectangl es. ");
frame.setDefaul tCloseOperation ( JFrame.EXIT_ON_ CLOSE );

Rectangle1 component = new Rectangle1();
frame.add( component );

frame.setVisibl e( true );

}

}

[Ganon11]

Don't you need a JPanel inside a JFrame to display anything?

Not sure of my answer, I only started learning about AWT and Swing...about a week ago!? But in all our examples, we had a class that extended JFrame, and we added a class that extended JPanel, and we added our own little objects to the Panel class, not the Frame class.

[KiranJyothi]

[QUOTE=Ganon11]Don't you need a JPanel inside a JFrame to display anything?

Not sure of my answer, I only started learning about AWT and Swing...about a week ago!? But in all our examples, we had a class that extended JFrame, and we added a class that extended JPanel, and we added our own little objects to the Panel class, not the Frame class.[/QUOT

Actually, this the example given in my text book. I was just trying to work out all the examples and typed as it was given in the book.
I was also thinking about JPanel. As far as I remember, we have to add the shapes on the panel and add the panel to the frame.
Thank You for the response.

KiranJyothi

[r035198x]

1.)Please remeber to wrap code with code tags next time you post code.
2.)You made a typo in overriding the paintComponent method

public void paintComponent

you wrote public void painComponent instead.