Programming-

📚 Library Management System (C++)

This project implements a simple Library Management System in C++ that allows users to view, borrow, and return books, with data persistence handled through a text file (books.txt).
It showcases fundamental object-oriented programming (OOP) principles, file I/O operations, and menu-driven user interaction in a console environment.

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🧩 Project Overview

The system models a basic library where each book can be borrowed or returned.
Book details are stored in a text file, and all changes (borrowing or returning) are saved upon exit.

Core functionalities include:

• Listing all books
• Borrowing a book
• Returning a book
• Saving updates to the file

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🧱 Class Structure

🧾 Book Class

Represents an individual book and its properties.

Attribute	Type	Description
bookId	int	Unique identifier for each book
bookTitle	string	Title of the book
author	string	Author’s name
isBorrowed	bool	Borrow status (true = borrowed)

Key Methods

• setBookDetails(id, title, authorName, status) — sets book data
• display() — prints book information to console
• borrowBook() — marks the book as borrowed
• returnBook() — marks the book as available
• isAvailable() — checks if the book can be borrowed
• getSaveFormat() — returns CSV format for file saving

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🏛️ Library Class

Manages the book catalog and performs operations on it.

Attribute	Type	Description
bookCatalog[50]	Book	Array holding all book objects
bookCount	int	Number of books in the system
bookFileName	string	Name of the text file storing books

Key Methods

• loadBooksFromFile() — loads books from books.txt
• saveBooksFromFile() — saves all books back to file
• listAllBooks() — displays all book records
• borrowBook(int id) — borrows a book if available
• returnBook(int id) — returns a borrowed book

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📂 File Format

All books are stored in a CSV-style text file named books.txt:

1,The Great Gatsby,F. Scott Fitzgerald,0 2,To Kill a Mockingbird,Harper Lee,1 3,1984,George Orwell,0 🖥️ Program Menu

When the program starts, it loads all book data and shows this menu:

---------------------Library Management System---------------------

1. List All Books
2. Borrow a Book
3. Return a Book
4. Save and Exit Enter your choice:

Example Flow: 1 -------------------Books------------------- ID: 1 | Title: The Great Gatsby | Author: F. Scott Fitzgerald [Available] ID: 2 | Title: To Kill a Mockingbird | Author: Harper Lee [Borrowed]

2 Enter book ID to borrow: 1 Book borrowed successfully!

⚙️ How to Compile and Run 🪟 On Windows (using g++) g++ main.cpp -o library.exe library.exe

🐧 On Linux / macOS g++ main.cpp -o library ./library

Make sure a books.txt file exists in the same directory as the executable.

🧠 Key Learning Outcomes

Mastering file input/output (I/O) in C++

Applying object-oriented programming (encapsulation, classes, methods)

Implementing data persistence using text files

Handling menu-driven console applications

Understanding how to serialize/deserialize objects manually

🪶 Author

Aleyna Aköz 🎓 Sivas Bilim ve Teknoloji Üniversitesi ✈️ Uçak Mühendisliği • Object-Oriented Programming Project

📅 October 2025

📜 License

This project is open for educational and academic use under the License. License © 2025 Aleyna Aköz