Main menu in System

This is Main Window. It does not show anything. You can see a Menu Bar Only. File, Options, Employee, Card (Punch card), Sheet (Same to punch card, its created by Production supervisor).

This is the code:
package cocoland;

/**
 *
 * @author Amila
 */
public class mainWindow extends javax.swing.JFrame {

    /** Creates new form mainWindow */
    public mainWindow() {
        initComponents();

       this.setBounds(0,0,800,600);
    }

  
    @SuppressWarnings("unchecked")
                            
    private void initComponents() {

        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu1 = new javax.swing.JMenu();
        logoff = new javax.swing.JMenuItem();
        exit = new javax.swing.JMenuItem();
        jMenu2 = new javax.swing.JMenu();
        jMenuItem1 = new javax.swing.JMenuItem();
        jMenu4 = new javax.swing.JMenu();
        jMenu3 = new javax.swing.JMenu();
        jMenuItem2 = new javax.swing.JMenuItem();
        jMenuItem3 = new javax.swing.JMenuItem();
        jMenuItem4 = new javax.swing.JMenuItem();
        jMenu5 = new javax.swing.JMenu();
        jMenuItem5 = new javax.swing.JMenuItem();
        jMenuItem6 = new javax.swing.JMenuItem();
        jMenuItem7 = new javax.swing.JMenuItem();
        jMenu6 = new javax.swing.JMenu();
        jMenuItem8 = new javax.swing.JMenuItem();
        jMenuItem9 = new javax.swing.JMenuItem();
        jMenuItem15 = new javax.swing.JMenuItem();
        jMenu7 = new javax.swing.JMenu();
        jMenuItem10 = new javax.swing.JMenuItem();
        jMenu8 = new javax.swing.JMenu();
        jMenuItem11 = new javax.swing.JMenuItem();
        jMenu9 = new javax.swing.JMenu();
        jMenuItem13 = new javax.swing.JMenuItem();
        jMenuItem14 = new javax.swing.JMenuItem();
        jMenuItem12 = new javax.swing.JMenuItem();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
        setTitle("Renuka Agri Food Ltd - Payroll System [Beta Version 0.1]");
        setCursor(new java.awt.Cursor(java.awt.Cursor.DEFAULT_CURSOR));
        setMaximizedBounds(getMaximizedBounds());

        jMenu1.setText("File");

        logoff.setText("Log off");
        logoff.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                logoffActionPerformed(evt);
            }
        });
        jMenu1.add(logoff);

        exit.setText("Exit");
        exit.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                exitActionPerformed(evt);
            }
        });
        jMenu1.add(exit);

        jMenuBar1.add(jMenu1);

        jMenu2.setText("Options");

        jMenuItem1.setText("setup Calender...");
        jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem1ActionPerformed(evt);
            }
        });
        jMenu2.add(jMenuItem1);

        jMenu4.setText("User");

        jMenu3.setText("New User");

        jMenuItem2.setText("Administrator...");
        jMenu3.add(jMenuItem2);

        jMenuItem3.setText("For Enter Card...");
        jMenu3.add(jMenuItem3);

        jMenuItem4.setText("For Enter Sheet...");
        jMenu3.add(jMenuItem4);

        jMenu4.add(jMenu3);

        jMenu5.setText("Delete User");

        jMenuItem5.setText("Administrator...");
        jMenu5.add(jMenuItem5);

        jMenuItem6.setText("For Enter Card...");
        jMenu5.add(jMenuItem6);

        jMenuItem7.setText("For Enter Sheet...");
        jMenu5.add(jMenuItem7);

        jMenu4.add(jMenu5);

        jMenu2.add(jMenu4);

        jMenuBar1.add(jMenu2);

        jMenu6.setText("Employee");

        jMenuItem8.setText("New Employee...");
        jMenuItem8.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem8ActionPerformed(evt);
            }
        });
        jMenu6.add(jMenuItem8);

        jMenuItem9.setText("Resign...");
        jMenu6.add(jMenuItem9);

        jMenuItem15.setText("View Employee data...");
        jMenuItem15.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem15ActionPerformed(evt);
            }
        });
        jMenu6.add(jMenuItem15);

        jMenuBar1.add(jMenu6);

        jMenu7.setText("Card");

        jMenuItem10.setText("Add Card Details...");
        jMenuItem10.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem10ActionPerformed(evt);
            }
        });
        jMenu7.add(jMenuItem10);

        jMenuBar1.add(jMenu7);

        jMenu8.setText("Sheet");

        jMenuItem11.setText("Add Sheet Details...");
        jMenuItem11.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem11ActionPerformed(evt);
            }
        });
        jMenu8.add(jMenuItem11);

        jMenuBar1.add(jMenu8);

        jMenu9.setText("View");

        jMenuItem13.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_I, java.awt.event.InputEvent.CTRL_MASK));
        jMenuItem13.setText("Individual TO Summery...");
        jMenuItem13.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem13ActionPerformed(evt);
            }
        });
        jMenu9.add(jMenuItem13);

        jMenuItem14.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_A, java.awt.event.InputEvent.CTRL_MASK));
        jMenuItem14.setText("Attendance & OT Summery...");
        jMenuItem14.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem14ActionPerformed(evt);
            }
        });
        jMenu9.add(jMenuItem14);

        jMenuItem12.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_D, java.awt.event.InputEvent.CTRL_MASK));
        jMenuItem12.setText("Defference...");
        jMenuItem12.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem12ActionPerformed(evt);
            }
        });
        jMenu9.add(jMenuItem12);

        jMenuBar1.add(jMenu9);

        setJMenuBar(jMenuBar1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 736, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 429, Short.MAX_VALUE)
        );

        java.awt.Dimension screenSize = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
        setBounds((screenSize.width-744)/2, (screenSize.height-477)/2, 744, 477);
    }// </editor-fold>                       

    private void exitActionPerformed(java.awt.event.ActionEvent evt) {                                    
    this.dispose();      
    }                                   

    private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {                                          
        new Calender().setVisible(true);
    }                                         

    private void jMenuItem8ActionPerformed(java.awt.event.ActionEvent evt) {                                          

        new PersanalInfo().setVisible(true);
    }                                         

    private void jMenuItem10ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        new Card().setVisible(true);
    }                                          

    private void jMenuItem12ActionPerformed(java.awt.event.ActionEvent evt) {                                           
       new defferance().setVisible(true);
    }                                          

    private void logoffActionPerformed(java.awt.event.ActionEvent evt) {                                      
       this.dispose();
       new passWord().setVisible(true);
    }                                     

    private void jMenuItem11ActionPerformed(java.awt.event.ActionEvent evt) {                                           

     

       Sheet sh = new Sheet();
      

       sh.setVisible(true);
     

      
    }                                          

    private void jMenuItem13ActionPerformed(java.awt.event.ActionEvent evt) {                                           
    new individualOtSummery().setVisible(true);       
    }                                          

    private void jMenuItem14ActionPerformed(java.awt.event.ActionEvent evt) {                                           
      new forSalary().setVisible(true);
    }                                          

    private void jMenuItem15ActionPerformed(java.awt.event.ActionEvent evt) {                                           
      new personalInfo().setVisible(true);
    }                                          

    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new mainWindow().setVisible(true);
               
            }
        });
    }

    // Variables declaration                   
    private javax.swing.JMenuItem exit;
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu2;
    private javax.swing.JMenu jMenu3;
    private javax.swing.JMenu jMenu4;
    private javax.swing.JMenu jMenu5;
    private javax.swing.JMenu jMenu6;
    private javax.swing.JMenu jMenu7;
    private javax.swing.JMenu jMenu8;
    private javax.swing.JMenu jMenu9;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    private javax.swing.JMenuItem jMenuItem10;
    public static javax.swing.JMenuItem jMenuItem11;
    private javax.swing.JMenuItem jMenuItem12;
    private javax.swing.JMenuItem jMenuItem13;
    private javax.swing.JMenuItem jMenuItem14;
    private javax.swing.JMenuItem jMenuItem15;
    private javax.swing.JMenuItem jMenuItem2;
    private javax.swing.JMenuItem jMenuItem3;
    private javax.swing.JMenuItem jMenuItem4;
    private javax.swing.JMenuItem jMenuItem5;
    private javax.swing.JMenuItem jMenuItem6;
    private javax.swing.JMenuItem jMenuItem7;
    private javax.swing.JMenuItem jMenuItem8;
    private javax.swing.JMenuItem jMenuItem9;
    private javax.swing.JMenuItem logoff;
    // End of variables declaration                  

}