Java tutorial
import javax.swing.JFrame; import javax.swing.JSeparator; public class Main { public static void main(String[] a) { JFrame frame = new JFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JSeparator sep = new JSeparator(JSeparator.VERTICAL); sep.setOrientation(JSeparator.VERTICAL); frame.add(sep); frame.setSize(300, 200); frame.setVisible(true); } }