Thread: ERROR - "CANNOT FIND SYMBOL"

import java.io.*;
public class DHMain extends javax.swing.JFrame
{
/** Creates new form DHMain */

public DHMain()
{
initComponents();
//jDesktopPane1.add( new DHFrame());
java.awt.Dimension dim = java.awt.Toolkit.getDefaultToolkit().getScreenSize ();
setSize(610,455);
setResizable(false);
}

/** This method is called from within the constructor to * initialize the form.
* WARNING: Do NOT modify this code. The content of this method is
* always regenerated by the Form Editor.
*/

private void initComponents()
{
//GEN-BEGIN:initComponents

jdp = new javax.swing.JDesktopPane();
jMenuBar1 = new javax.swing.JMenuBar();
fileMenu = new javax.swing.JMenu();
fileMenu1 = new javax.swing.JMenu();
embedMenu = new javax.swing.JMenuItem();
extractmenu = new javax.swing.JMenuItem();
exitmenu = new javax.swing.JMenuItem();
aboutMenu = new javax.swing.JMenuItem();
piclabel=new javax.swing.JLabel(new javax.swing.ImageIcon("new2.jpg"));
piclabel.setBounds(0,0,600,400);
add(piclabel);
setTitle("Audio-Stego");
addWindowListener(new java.awt.event.WindowAdapter()
{
public void windowClosing(java.awt.event.WindowEvent evt) {
exitForm(evt);
}
});
getContentPane().add(jdp, java.awt.BorderLayout.CENTER);

fileMenu.setMnemonic('F');
fileMenu.setText("File");
fileMenu1.setMnemonic('h');
fileMenu1.setText("Help");
embedMenu.setMnemonic('m');
embedMenu.setText("Embed");
embedMenu.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
embedMenuActionPerformed(evt);
}
});
fileMenu.add(embedMenu);
extractmenu.setMnemonic('t');
extractmenu.setText("Extract");
extractmenu.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
extractmenuActionPerformed(evt);
}
});

fileMenu.add(extractmenu);
exitmenu.setMnemonic('x');
exitmenu.setText("Exit");
exitmenu.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
exitmenuActionPerformed(evt);
}
});
fileMenu1.add(aboutMenu);
aboutMenu.setMnemonic('a');
aboutMenu.setText("About");
aboutMenu.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
aboutMenuActionPerformed(evt);
}
});
fileMenu.add(exitmenu);
fileMenu1.add(aboutMenu);
jMenuBar1.add(fileMenu);
jMenuBar1.add(fileMenu1);

setJMenuBar(jMenuBar1);
pack();
}


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

System.exit(0);
}

private void extractmenuActionPerformed(java.awt.event.ActionEv ent evt)
{
piclabel.setVisible(false);
WizardFrame wf = new ExtractAction(this).getWizardFrame();
jdp.add(wf);
wf.moveToFront();
}
private void embedMenuActionPerformed(java.awt.event.ActionEven t evt)
{

System.out.println("Embed Action Selected..");

piclabel.setVisible(false);
WizardFrame wf = new EmbedAction(this).getWizardFrame();
jdp.add(wf);
wf.moveToFront();
}

private void aboutMenuActionPerformed(java.awt.event.ActionEven t evt)
{
javax.swing.JOptionPane.showMessageDialog(this,"HI DING TEXT IN IMAGE USING

STEGNOGRAPHY\n\n"+"Created by : IT","About",javax.swing.JOptionPane.PLAIN_MESSAGE) ;
}
private void exitForm(java.awt.event.WindowEvent evt) {

System.exit(0);

}

public static void main(String args[])
{
new DHMain().show();
}

// Variables declaration - do not modify//GEN-BEGIN:variables
private javax.swing.JMenuItem exitmenu;
private javax.swing.JMenu fileMenu;
private javax.swing.JMenu fileMenu1;
private javax.swing.JDesktopPane jdp;
private javax.swing.JMenuItem extractmenu;
private javax.swing.JMenuItem embedMenu;
private javax.swing.JMenuItem aboutMenu;
private javax.swing.JMenuBar jMenuBar1;
public javax.swing.JLabel piclabel;
// End of variables declaration//GEN-END:variables

}

Hi, check the declaration of the variables