help needed

[silversurfer2in]

i am designing a login form on swing where the user has to enter name and password and submit via button

if the user enters wrong password i want to display a pop window to show his login failure just like the alert() funtion of javascript...is there any way of doing it.....
any reply will be highly appreciated

[JosAH]

i am designing a login form on swing where the user has to enter name and password and submit via button

if the user enters wrong password i want to display a pop window to show his login failure just like the alert() funtion of javascript...is there any way of doing it.....
any reply will be highly appreciated

Read the API documentation for the JTextField, the JPasswordField, the JButton, the JDialog (or the JOptionPane) and the ActionListener classes.

kind regards,

Jos

[wzq110120]

I don't what are you say.

[mr_anderson]

Hi
I am not sure if I understood your question, but I wrote this code
I donot know if this is what you want:

import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;

public class NFrame extends JFrame{
    JButton submit=new JButton("submit");
    JLabel lUser=new JLabel("username");
    JTextField user=new JTextField(8);
    JLabel lPass=new JLabel("password");
    JPasswordField password=new JPasswordField(8);
    JPanel panel=new JPanel();
    public NFrame(){
        panel.add(lUser);
        panel.add(user);
        panel.add(lPass);
        panel.add(password);
        panel.add(submit);
        submit.addActionListener(new ActionListener(){

            public void actionPerformed(ActionEvent e) {
            String userr=user.getText();
            String passs=password.getText();
            // suppose user name is pop and password is 123456
            if(userr.equals("pop") && (passs.equals("123456"))){
                JOptionPane.showMessageDialog(null," your user and password are accepted");
            }
            else
                JOptionPane.showMessageDialog(null,"sorry wrong user and pass");
            }
        });
        add(panel);
        setSize(400,400);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setAlwaysOnTop(true);
        setVisible(true);
    }
    public static void main(String [] args){
        new NFrame();
    }
}

Regards.