Java JCheckBoxMenuItem .getSelectedObjects ()

public Object [] getSelectedObjects()

import java.awt.event.KeyEvent;
/*from  ww  w  . ja  v  a2  s. c  o m*/
import javax.swing.JCheckBoxMenuItem;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;

public class Main {

  public static void main(final String args[]) {
    JFrame frame = new JFrame("MenuSample Example");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    JMenuBar menuBar = new JMenuBar();

    // File Menu, F - Mnemonic
    JMenu fileMenu = new JMenu("File");
    fileMenu.setMnemonic(KeyEvent.VK_F);
    menuBar.add(fileMenu);

    // File->New, N - Mnemonic
    JMenuItem newMenuItem = new JMenuItem("New", KeyEvent.VK_N);
    fileMenu.add(newMenuItem);

    JCheckBoxMenuItem caseMenuItem = new JCheckBoxMenuItem("Case Sensitive",true);
    caseMenuItem.setMnemonic(KeyEvent.VK_C);
    fileMenu.add(caseMenuItem);
 
    System.out.println(caseMenuItem.getSelectedObjects().length);
    
    
    frame.setJMenuBar(menuBar);
    frame.setSize(350, 250);
    frame.setVisible(true);
  }
}