Login Form with Java GUI using Netbeans

Hi there!

I'm a beginner in Java. I've created 2 class files: 1) TestAssign.java 2) NewFrame.java How can I have different user to login? Now that I've only administrator who is able to login. But, I would like to have other user to login too such as end-user and general manager. How/where should I code it?

TestAssign.java

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

public class TestAssign extends JFrame{

    public static void main(String[] args) {
        TestAssign frameTabel = new TestAssign();
    }

    JButton blogin = new JButton("Login");
    JPanel panel = new JPanel();
    JLabel username = new JLabel("Username:");
    JLabel password = new JLabel("Password:");
    JTextField txtadmin = new JTextField(15);
    JPasswordField pass = new JPasswordField(15);

    TestAssign(){
        super("Login Authentication");
        setSize(400,300);
        setLocation(500,280);
        setResizable(false);
        panel.setLayout(null);

        username.setBounds(80, 65, 100, 20);
        password.setBounds(80, 110, 100, 20);
        txtadmin.setBounds(155, 65, 150, 20);
        pass.setBounds(155, 110, 150, 20);
        blogin.setBounds(160, 180, 80, 20);

        panel.add(blogin);
        panel.add(username);
        panel.add(password);
        panel.add(txtadmin);
        panel.add(pass);

        getContentPane().add(panel);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
        actionlogin();
    }

    public void actionlogin(){
        blogin.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                String paname = txtadmin.getText();
                String ppaswd = pass.getText();
                if(paname.equals("admin") && ppaswd.equals("1234")){
                    NewFrame regFace = new NewFrame();
                    regFace.setVisible(true);
                    dispose();
                }else{
                    JOptionPane.showMessageDialog(null, "Invalid Password / "
                            + "Username");
                    txtadmin.setText("");
                    pass.setText("");
                    txtadmin.requestFocus();
                    }
                }
        });
    }
}

NewFrame.java

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

public class NewFrame extends JFrame{

    public static void main(String[] args){
        NewFrame frameTabel = new NewFrame();
    }
    JLabel welcome = new JLabel("******Welcome to MYSOFT Sdn Bhd!******", 
            SwingConstants.CENTER);
    JLabel dms = new JLabel("Delivery Management System");
    JPanel panel = new JPanel();

    NewFrame(){
        super("Welcome!");
        setSize(400,300);
        setLocation(500,280);
        setResizable(false);
        panel.setLayout(null);

        welcome.setBounds(60, 70, 300, 60);
        dms.setBounds(125, 100, 300, 60);

        panel.add(welcome);
        panel.add(dms);

        getContentPane().add(panel);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
    }
}

Thanks in advance.

January 28, 2014 at 11:39 PM

I just found out the solution. In the TestAssign.java, I'll need else-if statement and create a new frame for both of the manager and staff. For example, ManagerFrame and StaffFrame.

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

public class TestAssign extends JFrame{

    public static void main(String[] args) {
        TestAssign frameTabel = new TestAssign();
    }

    JButton blogin = new JButton("Login");
    JPanel panel = new JPanel();
    JLabel username = new JLabel("Username:");
    JLabel password = new JLabel("Password:");
    JTextField txtuser = new JTextField(15);
    JPasswordField pass = new JPasswordField(15);

    TestAssign(){
        super("Login Authentication");
        setSize(400,300);
        setLocation(500,280);
        setResizable(false);
        panel.setLayout(null);

        username.setBounds(80, 65, 100, 20);
        password.setBounds(80, 110, 100, 20);
        txtuser.setBounds(155, 65, 150, 20);
        pass.setBounds(155, 110, 150, 20);
        blogin.setBounds(160, 180, 80, 20);

        panel.add(blogin);
        panel.add(username);
        panel.add(password);
        panel.add(txtuser);
        panel.add(pass);

        getContentPane().add(panel);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        setVisible(true);
        actionlogin();
    }

    public void actionlogin(){
        blogin.addActionListener(new ActionListener(){
            public void actionPerformed(ActionEvent ae){
                String paname = txtuser.getText();
                String ppaswd = pass.getText();
                if(paname.equals("admin") && ppaswd.equals("1234")){
                    NewFrame regFace = new NewFrame();
                    regFace.setVisible(true);
                    dispose();
                }
                else if(paname.equals("manager") && ppaswd.equals("4567")) {
                    ManagerFrame manager = new ManagerFrame();
                    manager.setVisible(true);
                    dispose();              
                }
                else if(paname.equals("staff") && ppaswd.equals("7890")) {
                    EndUserFrame staff = new EndUserFrame();
                    staff.setVisible(true);
                    dispose();              
                }
                else{
                    JOptionPane.showMessageDialog(null, "Invalid Password / "
                            + "Username");
                    txtuser.setText("");
                    pass.setText("");
                    txtuser.requestFocus();
                    }
                }
        });
    }
}