Java login system ‍

//**************************************************
public class Main {

public static void main(String[] args) {

IDandPasswords idandPasswords = new IDandPasswords();

LoginPage loginPage = new LoginPage(idandPasswords.getLoginInfo());

}
}
//**************************************************
public class IDandPasswords {

HashMap<String,String> logininfo = new HashMap<String,String>();

IDandPasswords(){

logininfo.put("Bro","pizza");
logininfo.put("Brometheus","PASSWORD");
logininfo.put("BroCode","abc123");
}

public HashMap getLoginInfo(){
return logininfo;
}
}
//**************************************************
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;

public class LoginPage implements ActionListener{

JFrame frame = new JFrame();
JButton loginButton = new JButton("Login");
JButton resetButton = new JButton("Reset");
JTextField userIDField = new JTextField();
JPasswordField userPasswordField = new JPasswordField();
JLabel userIDLabel = new JLabel("userID:");
JLabel userPasswordLabel = new JLabel("password:");
JLabel messageLabel = new JLabel();
HashMap<String,String> logininfo = new HashMap<String,String>();

LoginPage(HashMap<String,String> loginInfoOriginal){

logininfo = loginInfoOriginal;

userIDLabel.setBounds(50,100,75,25);
userPasswordLabel.setBounds(50,150,75,25);

messageLabel.setBounds(125,250,250,35);
messageLabel.setFont(new Font(null,Font.ITALIC,25));

userIDField.setBounds(125,100,200,25);
userPasswordField.setBounds(125,150,200,25);

loginButton.setBounds(125,200,100,25);
loginButton.setFocusable(false);
loginButton.addActionListener(this);

resetButton.setBounds(225,200,100,25);
resetButton.setFocusable(false);
resetButton.addActionListener(this);

frame.add(userIDLabel);
frame.add(userPasswordLabel);
frame.add(messageLabel);
frame.add(userIDField);
frame.add(userPasswordField);
frame.add(loginButton);
frame.add(resetButton);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(420,420);
frame.setLayout(null);
frame.setVisible(true);

}

@Override
public void actionPerformed(ActionEvent e) {

if(e.getSource()==resetButton) {
userIDField.setText("");
userPasswordField.setText("");
}

if(e.getSource()==loginButton) {

String userID = userIDField.getText();
String password = String.valueOf(userPasswordField.getPassword());

if(logininfo.containsKey(userID)) {
if(logininfo.get(userID).equals(password)) {
messageLabel.setForeground(Color.green);
messageLabel.setText("Login successful");
frame.dispose();
WelcomePage welcomePage = new WelcomePage(userID);
}
else {
messageLabel.setForeground(Color.red);
messageLabel.setText("Wrong password");
}

}
else {
messageLabel.setForeground(Color.red);
messageLabel.setText("username not found");
}
}
}
}
//**************************************************
import java.awt.*;
import javax.swing.*;

public class WelcomePage {

JFrame frame = new JFrame();
JLabel welcomeLabel = new JLabel("Hello!");

WelcomePage(String userID){

welcomeLabel.setBounds(0,0,200,35);
welcomeLabel.setFont(new Font(null,Font.PLAIN,25));
welcomeLabel.setText("Hello "+userID);

frame.add(welcomeLabel);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(420, 420);
frame.setLayout(null);
frame.setVisible(true);
}
}
//**************************************************

❤

bro is gonna save my uni degree

Thanks for your awesome content ❤

Really really good job, thank you !

Let's say I want to create a system which can detect a wrong password as soon as I type in the required number of characters (without me pressing any button). How would I do that?

Love you Bro.

Very nice :D

Wro Code

Nice video, well done, thank you for sharing it :)

I think instead of ambiguously circuitous welcomlabel with new comstructor

jOptionPane might be more effacacious to break down some some complexity

hiii

can you tell me how we can add icon on taskbar when that application is running in java.

i love your videos brooo
your videos are so clear and short, essential

Could you add 2FA?

Yo just wanna say that GOD loved the world so much he sent his only begotten
son Jesus to die a brutal death for us so that we can have eternal life
and we can all accept this amazing gift this by simply believing in him (Jesus) asking for the forgiveness of your sins
and forming a relationship with heavenly father.

this is a real chad. I hope to meet you one day, mr. bro

thanks so much! although i hv a little problem, wherein my welcome page tab isn't displaying, overall, this tutorial is exceptional and helpful for me who's a beginner in java (GUI) .

THANksss again bro!!!!

guys again add * to import everyting like javax.swing.* java.util.* it helps to not tpe alot of import texts and its good if ou are lazy hehe

gogogog🥵

thanks Bro! it really helps me a lot!

Hi, great video, very well explained, could you pls help me out a little, In this video you are doing many imports ,but in my eclipse the import option is not coming for listener method

I have assignment to creat log in page with username and password and button login and back button. Can I use the code in this video for Java fx and builder scene

Thank you

i just love you Bro 💖💖

Hey Bro, I messed up something with the messageLabel but no idea where. "Wrong password" only appears if I entered firstly the correct info, then the wrong..every Bros help is very much appreciated (:

Broo, thank you very much, this is exactly what I needed.

Hi Bro Code! How do I import Hash map?

Thanks sir!

A question, when you created Login page login page = new Loginpage, in the main, would it be possible to put that code in IDandPassword

just a comment so this go pop

Thank you! Simply but awesome!

<3

Comment comment=new comment ();🙂

Comment

good day sir, I would like to ask how to put background color or image in the log in page. do you have a tutorial for that?
-

quick question, why not just make the IDandPasswords class static, that way you won't have to make an instance of it in the main method?

Thank you so much! , I made it

This video is so helpful. Thank you.

how to add background image ?

🥰

I am highly offended you used the word "bro code". I identify as a cat, so please next time include "P%÷=% Code".

All time best coding video Ever 🌟

thank you so much, after watching your videos I more interesting to practice Java .... Cheers

hello bro, do u know how to add a login attempt?

Thank bro

Please real-time apps

👏👏👏