CodeAlpha Login & Registration System (C++)

📌 Project Overview

This project is a console-based Login and Registration System developed in C++ as part of the CodeAlpha C++ Programming Internship (Task 2).
The application allows users to securely register and log in using file handling techniques.

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🎯 Objectives

• To understand file handling in C++
• To implement a basic authentication system
• To work with loops, conditions, and functions
• To build a real-world console application

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⚙️ Features

• User Registration
• User Login Authentication
• Duplicate Username Validation
• File Handling using ifstream and ofstream
• Menu-driven Interface
• Simple and Efficient Logic

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🛠️ Technologies Used

• Language: C++
• Concepts: File Handling, Functions, Loops, Conditional Statements
• Compiler: GCC / MinGW / Any C++ Compiler

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📂 Project Structure

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CodeAlpha_Login_System/ │── main.cpp │── users.txt │── README.md

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▶️ How to Run the Project

1. Clone or download the repository
2. Open the project in any C++ compiler
3. Compile the code:

   g++ login_registration.cpp -o login

4. Run the program:

   ./login

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📸

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Sample Output

===== MENU =====
1. Register
2. Login
3. Exit
Enter your choice: 1

Enter username: shubham
Enter password: 1234
Registration successful!

===== MENU =====
Enter your choice: 2
Enter username: shubham
Enter password: 1234
Login successful!

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🧪 Sample Functionality

Register a new user with username and password

Login using stored credentials

Data is stored permanently using file handling

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📚 Learning Outcomes

Practical understanding of file streams in C++

Implementation of authentication logic

Experience with real-world programming tasks

Improved problem-solving skills

👤 Author

Shubham Kumar

🏷️ Internship

This project is submitted as Task 2 for the CodeAlpha C++ Programming Internship.