Java JMenu.insert(Action a, int pos)

public JMenuItem insert(Action a,  int pos)

import java.awt.ComponentOrientation;
import java.awt.event.ActionEvent;
//from ww  w. ja v a2s .  c  o m
import javax.swing.AbstractAction;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JSeparator;

public class Main extends JFrame {
  public Main() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JMenuBar bar = new JMenuBar();
    JMenu menu = new JMenu("File");
    ComponentOrientation ori = ComponentOrientation.LEFT_TO_RIGHT;
    
    menu.applyComponentOrientation(ori);
    bar.add(menu);

    menu.add(new JMenuItem("Close"));
    menu.add(new JSeparator()); // SEPARATOR
    menu.add(new JMenuItem("Exit"));
    
    setJMenuBar(bar);
    add(new JLabel("A placeholder"));

    pack();
    setSize(300, 300);
    setVisible(true);
    
    menu.insert(new AbstractAction("Action"){

      @Override
      public void actionPerformed(ActionEvent arg0) {

        
      }
      
    },0);
  }

  public static void main(String arg[]) {
    new Main();
  }
}