Stroke Patteren in Java Swing Example

import javax.swing.*;


import java.awt.*;


import java.awt.geom.*;


public class JStrokeJavaExample extends JFrame


  {


            public void paint(Graphics gr)


            {


                          super.paint(gr);


                         Graphics2D GR2D = (Graphics2D)gr;


                          BasicStroke strk = new BasicStroke(15.0f,


                                BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);


                          GR2D.setStroke(strk);


                          GR2D.draw(new Rectangle2D.Double(50, 50, 100, 100));


            }


                        public static void main(String[] ar)


                         {


                               JStrokeJavaExample frm = new JStrokeJavaExample();


                               frm.setSize(180, 200);


                               frm.setVisible(true);


                         }


  }