🚀 go-pugleaf

hello. how can i draw a rectangle exactly on a button's border/edges?
the code below draws the rectangle above and in the left of the button..
how should i change the line g.drawRect(..) ?
thank you


public class myFrame extends JFrame {
   static JButton b1;
   public void paint(Graphics g) {
      g.drawRect( b1.getX(), b1.getY(), b1.getWidth(),
                                           b1.getHeight() );  
   }
   public static void main(String s[]) {
      b1= new JButton("A Button");
      Container p= this.getContentPane();
      p.setLayout(null);
      p.add(b1);
      b1.setBounds( 100, 100, 75, 30);
      ...
   }
}