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

public class CreateAccount extends JFrame{

    private JLabel user, pass; //label next to username and password field
    private JTextField username; //enter username
    private JPasswordField password; //enter password
    private JButton create;
    private String u, p;
    private static final int WIDTH = 500;
    private static final int HEIGHT = 300;

    public CreateAccount(){


        setTitle("Create Account");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(WIDTH, HEIGHT);
        setMinimumSize(new Dimension(WIDTH, HEIGHT));
        setLocationRelativeTo(null);
        setResizable(false);

        createView();
        setVisible(true);

    }


    private void createView(){


        JPanel panelMain = new JPanel(null);
        getContentPane().add(panelMain);

        user = new JLabel("Username: ");
        panelMain.add(user);
        user.setBounds(50, 30, 120, 25);

        username = new JTextField();
        panelMain.add(username);
        username.setBounds(140, 30, 150, 25);


        pass = new JLabel("Password: ");
        panelMain.add(pass);
        pass.setBounds(50, 100, 120, 25);

        password = new JPasswordField();
        panelMain.add(password);
        password.setBounds(140, 100, 150, 25);

        create = new JButton("Create");
        panelMain.add(create);
        create.setBounds(170, 180, 100,25);
        create.addActionListener((new Listener()));

    }

    private class Listener implements ActionListener {
        @Override
        public void actionPerformed(ActionEvent e) {
            String usn = username.getText();
            String psd = password.getText();
            setUser(usn);
            setPass(psd);
            new Login();
            setVisible(false);
        }
    }

    public void setUser(String usn){
        this.u = usn;
    }

    public String getUser(){
        return u;
    }

    public void setPass(String psd){
        this.p = psd;
    }

    public String getPass(){
        return p;
    }

}

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

public class Login extends JFrame{

    private JLabel user, pass;
    private JTextField username;
    JPasswordField password;
    private JButton login;
    private static final int WIDTH = 500;
    private static final int HEIGHT = 300;


    public Login(){

        setTitle("Login");
        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(WIDTH, HEIGHT);
        setMinimumSize(new Dimension(400, 200));
        setLocationRelativeTo(null);
        setResizable(false);
        createView();
        setVisible(true);

    }

    private void createView(){

        JPanel panel = new JPanel(null);
        getContentPane().add(panel);

        user = new JLabel("Username: ");
        panel.add(user);
        user.setBounds(50, 30, 120, 25);

        username = new JTextField();
        panel.add(username);
        username.setBounds(140, 30, 150, 25);

        pass = new JLabel("Password: ");
        panel.add(pass);
        pass.setBounds(50, 100, 120, 25);

        password = new JPasswordField();
        panel.add(password);
        password.setBounds(140, 100, 150, 25);

        login = new JButton("Login");
        panel.add(login);
        login.setBounds(170, 170, 100, 25);
        login.addActionListener((new Listener()));
    }

    private class Listener implements ActionListener{
        CreateAccount grab = new CreateAccount();
        @Override
        public void actionPerformed(ActionEvent e) {
            String usn = username.getText();
            String psd = password.getText();

            if(usn.equals("Admin") && psd.equals("Password")){

                new AdminDB();
            }

            else if (usn.equals(grab.getUser()) && psd.equals(grab.getPass()))
            {
                new UserDB();
            }

            else
            {
                JOptionPane.showMessageDialog(null,"Invalid login info, try again");
            }

            setVisible(false);
        }
    }


}