Library Management System

Overview

The Library Management System is a console application written in C# for managing books and users in a library. The system supports two types of users: Librarians and regular users.

Key Features

For Librarians:

• Add new books to the library
• Remove books from the library
• Display available books list

For Regular Users:

• Borrow books
• Display available books list

Project Structure

Library Management System/
├── Program.cs              # Main application entry point
├── Library.cs              # Main library class
├── Book.cs                 # Book class
├── User.cs                 # Base user class
├── Librarian.cs            # Librarian class
├── LibraryUser.cs          # Regular user class
├── LibraryCard.cs          # Library card class
└── Properties/
    └── AssemblyInfo.cs     # Assembly information

Classes and Functions

Book Class

public class Book
{
    public int Year;        // Publication year
    public string Title;    // Book title
    public string Author;   // Author name
}

Library Class

• AddBook(Book book) - Add a new book
• RemoveBook(Book book) - Remove a book
• Display() - Display books list
• BorrowBook(Book book) - Borrow a book

User Classes

• User (Abstract): Base class for all users
• Librarian: Inherits from User, can add and remove books
• LibraryUser: Inherits from User, can borrow books

How to Run

Requirements

• .NET Framework 4.7.2 or later
• Visual Studio or any C# development environment

Running Steps

1. Open the project in Visual Studio
2. Press F5 or click "Start Debugging"
3. Choose user type:
   • L for Librarian
   • R for Regular user

Usage Example

For Librarian:

Welcome to the Library System
Are you Librarian or regular user? (L / R)?
L
Welcome Librarian, Enter your Name -> John
Welcome John
Please choose to Add Book (A) / Remove Book (R) / Display Books (D)?
A
Enter Book Details Adding
=============================
Enter Title Book -> Introduction to Programming
Enter Author Book -> John Smith
Enter Year Book -> 2023
Book Add Successfully :)

For Regular User:

Welcome to the Library System
Are you Librarian or regular user? (L / R)?
R
Welcome User, Enter your Name -> Sarah
Welcome Sarah
Please choose to Borrow Book(B) / Display Books (D)?
B
Enter Book Borrow Details
=============================
Enter Title Book -> Introduction to Programming
Enter Author Book -> John Smith
Enter Year Book -> 2023
Book Borrow Successfully :)

Important Files

• Program.cs: Contains the main interface and core application logic
• Library.cs: Manages the book collection and operations (add, remove, borrow)
• Book.cs: Represents a book object with its basic properties

Future Development

The system can be enhanced by adding:

• Database for data persistence
• Graphical User Interface (GUI)
• Secure login system
• Due date tracking for borrowed books
• Notification system for overdue books
• Detailed reports on library activity

Contributing

This is an educational project that can be used as a foundation for developing a more advanced library management system.

License

This project is open source and available for educational and development use.