import java.awt.*;
 import java.awt.event.*;
 import javax.swing.*;
 import javax.swing.event.*;
 public class SeperatorDemo extends JFrame {
   public SeperatorDemo (){
     super("A JSeparater test");
     Container contentPane = getContentPane();
     contentPane.setLayout(new FlowLayout());
     JSeparator s=new JSeparator(JSeparator.VERTICAL);
     Dimension ps= s.getPreferredSize();
     contentPane.add(new JButton("Left"));
     contentPane.add(s);
     contentPane.add( new JButton("Right"));
     s.setPreferredSize(new Dimension(ps.width,50));
     setSize( 200, 80 );
     setVisible( true );
   }
   public static void main( String args[] ){
     SeperatorDemo app = new SeperatorDemo ();
     app.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE );
   }
}