anonymous inner class

[harshit shah]

import javax.swing.*;//importing essential p[ackages
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;

public class Admission
{
    public static void main()
    {
        if(Login.success_of_login == 1) 
        {
            try//try-catch method
            {
                Admission_2 frame=new Admission_2();
                frame.setSize(1000,700);
                frame.setLocation(250,100);
                frame.setVisible(true);//showing frame
            }
            catch(Exception e)//exception handler
            {System.out.println("JAVA EXEPTION TRIGGERED.PLEASE CHECK FOR YOUR FAULTS");
                System.out.println("FAULTS SUCH AS WRONG INPUTS, WRONG INPUT OR TYPE");
            }
        }
        else        System.out.println("PLEASE LOGIN");
    }
}
class Admission_2  extends JFrame 
{
    JPanel panel;    JButton SUBMIT;//button for submitting data
    JLabel label1,label2,label3,label4,label5,label6,label7,label8,label9,label10,label11,label12,label13,label14,label15,label16,label17,label18,label19;
    JTextField  text2,text3,text4,text5,text6,text7,text8,text9,text10,text12,text13,text14,text15,text16,text17,text18,text19;
    public Admission_2()
    {
        label1 = new JLabel();
        label2 = new JLabel();
        label3 = new JLabel();
        label4 = new JLabel();
        label5 = new JLabel();
        label6 = new JLabel();
        label7 = new JLabel();
        label8 = new JLabel();
        label9 = new JLabel();
        label10 = new JLabel();
        label11 = new JLabel();
        label12 = new JLabel();
        label13 = new JLabel();
        label14 = new JLabel();
        label15 = new JLabel();
        label16 = new JLabel();
        label17 = new JLabel();
        label18 = new JLabel();
        label19 = new JLabel();

        label1.setText("DETAILS OF CHILD :");
        label1.setForeground(Color.red);

        label2.setText("Class in Which Admission Required");
        text2 = new JTextField(15);

        label3.setText("Student Name");
        text3 = new JTextField(50);

        label4.setText("Sex");
        text4 = new JTextField(6);

        label5.setText("Date of Birth");
        text5 = new JTextField(50);

        label6.setText("Nationality");
        text6 = new JTextField(50);

        label7.setText("Address");
        text7 = new JTextField(150);

        label8.setText("Mother Tongue");
        text8 = new JTextField(50);

        label9.setText("Identification Mark");
        text9 = new JTextField(500);

        label10.setText("Blood Group");
        text10 = new JTextField(3);

        label11.setText("PARENTAL DETAILS :");
        label11.setForeground(Color.red);

        label12.setText("Name");
        text12 = new JTextField(100);

        label13.setText("email");
        text13 = new JTextField(50);

        label14.setText("Qualification");
        text14 = new JTextField(100);

        label15.setText("Occupation");
        text15 = new JTextField(50);

        label16.setText("Income P/M");
        text16 = new JTextField(15);

        label17.setText("Office Address");
        text17 = new JTextField(150);

        label18.setText("Office Telephone No.");
        text18 = new JTextField(11);

        label19.setText("Religion");
        text19 = new JTextField(20);

        SUBMIT=new JButton("SUBMIT");
        panel=new JPanel(new GridLayout(38,2));
        panel.add(label1);
        panel.add(label2);
        panel.add(text2);
        panel.add(label3);
        panel.add(text3);
        panel.add(label4);
        panel.add(text4);
        panel.add(label5);
        panel.add(text5);
        panel.add(label6);
        panel.add(text6);
        panel.add(label7);
        panel.add(text7);
        panel.add(label8);
        panel.add(text8);
        panel.add(label9);
        panel.add(text9);
        panel.add(label10);
        panel.add(text10);
        panel.add(label11);
        panel.add(label12);
        panel.add(text12);
        panel.add(label13);
        panel.add(text13);
        panel.add(label14);
        panel.add(text14);
        panel.add(label15);
        panel.add(text15);
        panel.add(label16);
        panel.add(text16);
        panel.add(label17);
        panel.add(text17);
        panel.add(label18);
        panel.add(text18);
        panel.add(label19);
        panel.add(text19);
        panel.add(SUBMIT);

        SUBMIT.addActionListener(new ActionListener()
            {
                public void actionPerformed(ActionEvent evt) 
                {
                    JOptionPane.showMessageDialog(this,"login successful",
                        "SUCCESS!",JOptionPane.INFORMATION_MESSAGE);
                }
            });

        add(panel,BorderLayout.CENTER); 
        panel.setVisible(true);
        panel.setBackground(Color.cyan);
        setTitle("ADMISSION FORM");
    }

}

I am using blueJ but it gives me an error message

Can any body enlighten me on this topic.

[Tolls]

In your anonymous inner class 'this' refers to the ActionListener object, not the outer object.
If you want the outer object (which I presume you do, as you need a Component or null) then you prefix it with the class name.
Admission_2.this

[harshit shah]

In your anonymous inner class 'this' refers to the ActionListener object, not the outer object.
If you want the outer object (which I presume you do, as you need a Component or null) then you prefix it with the class name.
Admission_2.this

thanks a lot.Can you please close this thread now.Reason=problem_solved