Cannot open Dialog in the frame

[Raj kalaria]

I have a frame and in the frame i have three tabs

In one of the tab i have button which when click should call the dialog, but
for some reason the dialog is not opening. here is the code
I am using netbeans

I am not sure if i am passing correct reference to the dialog while creating
the instance.


Parent Frame (name of the class is Usertab)

 private void callDialog(java.awt.event.ActionEvent evt) {
 
System.out.println("Selected");    
//NewJDialog dy = new NewJDialog(this,"group",true,"s");
// please see userTab is the name of the class
//UserTab.class.getClass()
NewJDialog dy = new NewJDialog(UserTab.this,true);  // is userTab,this correct? 
String val = dy.gettextfile();
grouptext.setText(val);
 
}   

Dialog Code

   public class NewJDialog extends javax.swing.JDialog {
 
    /** Creates new form NewJDialog */
    public NewJDialog(java.awt.Frame parent, boolean modal) {
        super(parent, modal);
        initComponents();
    }
 
    public NewJDialog(java.awt.Frame parent,String title, boolean modal,String Message) {
        super(parent, title, true);
        initComponents();
    }
 
    
    public String gettextfile(){
        
        
        return jTextField2.getText();
    }
    
    
    /** 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.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">
    private void initComponents() {
 
        label1 = new javax.swing.JLabel();
        jLabel3 = new javax.swing.JLabel();
        jTextField1 = new javax.swing.JTextField();
        jTextField2 = new javax.swing.JTextField();
        jButton1 = new javax.swing.JButton();
 
        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
 
        label1.setText("jLabel1");
 
        jLabel3.setText("label2");
 
        jTextField1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jTextField1ActionPerformed(evt);
            }
        });
 
        jButton1.setText("Ok");
 
        org.jdesktop.layout.GroupLayout layout = new org.jdesktop.layout.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(45, 45, 45)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
                    .add(label1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, 90, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE)
                    .add(jLabel3))
                .addPreferredGap(org.jdesktop.layout.LayoutStyle.RELATED)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING, false)
                    .add(jTextField1)
                    .add(jTextField2, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, 115, Short.MAX_VALUE))
                .addContainerGap(146, Short.MAX_VALUE))
            .add(org.jdesktop.layout.GroupLayout.TRAILING, layout.createSequentialGroup()
                .addContainerGap(165, Short.MAX_VALUE)
                .add(jButton1)
                .add(190, 190, 190))
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(org.jdesktop.layout.GroupLayout.LEADING)
            .add(layout.createSequentialGroup()
                .add(44, 44, 44)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(label1)
                    .add(jTextField1, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(28, 28, 28)
                .add(layout.createParallelGroup(org.jdesktop.layout.GroupLayout.BASELINE)
                    .add(jLabel3)
                    .add(jTextField2, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE, org.jdesktop.layout.GroupLayout.DEFAULT_SIZE, org.jdesktop.layout.GroupLayout.PREFERRED_SIZE))
                .add(75, 75, 75)
                .add(jButton1)
                .addContainerGap(92, Short.MAX_VALUE))
        );
 
        pack();
    }// </editor-fold>
 
private void jTextField1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
 
    /**
    * @param args the command line arguments
    */
    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                NewJDialog dialog = new NewJDialog(new javax.swing.JFrame(), true);
                dialog.addWindowListener(new java.awt.event.WindowAdapter() {
                    public void windowClosing(java.awt.event.WindowEvent e) {
                        System.exit(0);
                    }
                });
                dialog.setVisible(true);
            }
        });
    }
 
    // Variables declaration - do not modify
    private javax.swing.JButton jButton1;
    private javax.swing.JLabel jLabel3;
    private javax.swing.JTextField jTextField1;
    private javax.swing.JTextField jTextField2;
    private javax.swing.JLabel label1; 

[Michael Dunn]

the code in main() should be in the constructor (namely the 'visible' part),
or you could include dy.setVisible(true) in callDialog()