'dotted' / 'bumpy' background like JSplitPane divider

Question

Is there a way to get the background of a JPanel to have the nice 'dotted' (is 'bumpy' more correct ?) look of the light grey divider that Swing uses for such things as JSplitPane ?

Answer 1

Too many panels you are having. Try none:
import java.awt.*;
import java.net.*;
import javax.swing.*;
public class SplitExample {
     public static void main(String[] args) throws MalformedURLException {
          JLabel left = new JLabel("LEFT");
          URL url = new URL("http://weblogs.java.net/jag/bio/JagHeadshot-small.jpg");
          JLabel right = new JLabel(new ImageIcon(url));
          JSplitPane sp = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, left, right);
          JFrame f = new JFrame("SplitExample");
          f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
          f.getContentPane().add(sp);
          f.pack();
          f.setLocationRelativeTo(null);
          f.setVisible(true);
}