import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
 
public class Login{
    String Username = "anip";
    String Password = "nasrul";
    String msg = " ";
    JTextField txtUsername = null;
    JTextField txtPassword = null;
 
    public static void main(String[] args)
    {
        Login gui = new Login();
        gui.go();
    }
 
    public void go()
    {
        JFrame frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        JPanel panel = new JPanel();
        JLabel lblUsername = new JLabel("Username:");  
        JLabel lblPassword = new JLabel("Password:");
        JTextField txtUsername = new JTextField(20);
        JTextField txtPassword = new JTextField(20);
        JButton btnLogin = new JButton("Login");
        btnLogin.addActionListener(new LoginListener());
        JButton btnCancel = new JButton("Cancel");
        btnCancel.addActionListener(new CancelListener());
 
        panel.add(lblUsername);
        panel.add(txtUsername);
        panel.add(lblPassword);
        panel.add(txtPassword);        
        frame.getContentPane().add(BorderLayout.CENTER,panel);
        frame.setSize(300,300);
        frame.setVisible(true);
 
        txtUsername = new JTextField(20);
        txtPassword = new JTextField(20);
    }
 
    public class LoginListener implements ActionListener
    {
        public void actionPerformed(ActionEvent event)
        {
            if(Username.equals(txtUsername.getText()))
            {
                if(Password.equals(txtPassword.getText()))
                {
                    msg = "Login Granted!";
                }
                else
                {
                    msg = "Login Denied";
                }
            }
            else
            {
                msg = "Login Denied";
            }  
            JOptionPane.showMessageDialog(null,msg);                    
        }
    }
 
    public class CancelListener implements ActionListener
    {
        public void actionPerformed(ActionEvent event)
        {
            txtUsername.setText("");
            txtPassword.setText("");
            txtUsername.requestFocus();
        }
    }
}