JavaFX Login System

A simple JavaFX Login System that allows users to create accounts, log in, and reset passwords. This project demonstrates authentication logic, UI design using JavaFX, and user validation using a HashMap. I will advance it using Database in the future.

Features

1. Create Account
2. Login
3. Password Reset
4. Logout Functionality
5. Input Validation
6. Password Confirmation
7. Notification Messages
8. Hover Effects on Buttons
9. Multi-Screen Navigation
10. Temporary User Storage using HashMap

Technologies Used

• Java
• JavaFX
• HashMap (User Storage) - temporary before advancing to Databases
• GridPane Layout
• HBox Layout
• Event Handling
• PauseTransition (for notifications)

SCREENSHOTS

Main Menu

Create Account Screen

Login Screen

Password Reset Screen

Welcome Screen

Project Structure

JavaFX-Login-System/ │ ├── src/ │ └── com/ │ └── example/ │ └── LoginSystem.java │ ├── images/ │ ├── menu.png │ ├── create-account.png │ ├── login.png │ ├── reset-password.png │ └── welcome.png │ ├── pom.xml └── README.md

How to Run the Project

Requirements

Make sure you have:

• Java JDK 17 or later
• JavaFX SDK installed
• Maven installed

Steps

1. Clone the repository:

git clone https://github.com/hassan200503/JavaFX-Login-System.git

2. Navigate into the project folder;

cd LoginSystem

3. Run the project;

mvn clean javafx:run

How the System Works

Create Account

• User enters;

  • Username
  • Password
  • Confirm Password

• System checks;

  • Passwords match
  • Username is not empty

• Account is stored in a HashMap temporarily.

Login

• User enters username and password

• System checks;

  • Username exists
  • Password matches

• If correct;

  • User is logged in
  • Welcome message is displayed

Password Reset

User must provide:

• Username
• Old Password
• New Password
• Confirm Password

System checks;

• Username exists
• Old password matches
• New passwords match

If valid;

1. Password is updated
2. Success notification is displayed

What I practised From This Project

• JavaFX UI Design
• Event Handling in JavaFX
• HashMap-based User Authentication
• Input Validation
• Password Reset Logic
• Navigation Between Screens
• UI Feedback using Notifications
• Hover Effects in JavaFX
• PauseTransition

Future Improvements

• Database connection
• Add unique username validation
• Implement password hashing
• Use external CSS styling
• Add database support (MySQL)
• Improve UI styling

Author

Hassan Karungwa

GitHub: https://github.com/hassan200503

NOTE;

This project is part of my JavaFX learning.

GOALS

1. Master JavaFX and Java basics very well
2. Build 50+ projects
3. Learn Databases(SQL)
4. Learn APIs
5. Learn Web development basics

Since I love coding, I will do this.

Vision:

Become a powerful software developer and a real problem solver.