Library Management System

This is a C++ program for managing a library system. It allows users (students, faculty) to borrow and return books, manage fines, and view their borrowing history. Librarians can manage books and users in the system.

Compilation and Execution

Compile the Program:

Use a C++ compiler to compile the program. For example:

g++ -o library_management.cpp

Run the Program:

Execute the compiled program:

./library_management

Features

User Roles:

• Student: Can borrow up to 3 books for 15 days. Fines are charged at ₹10 per day for overdue books.
• Faculty: Can borrow up to 5 books for 30 days. No fines are charged.
• Librarian: Can add new books and users to the system.

Book Management:

• Add new books to the library.
• Delete a book from the library
• Borrow and return books.
• View the status of books (available/borrowed).

User Management:

• Add new users (students, faculty, or librarians).
• Delete a User from the library
• View borrowed books and borrowing history.
• Pay fines (for students).

Persistence:

• Save and load library data to/from a file (library.txt).

Usage Guide

Initial Setup:

• When you run the program for the first time, it will load data from library.txt.

Main Menu:

When you run the program, you will see the following menu:

Who are you?
1. Student
2. Faculty
3. Librarian
4. Exit

Choose your role by entering the corresponding number.

Student Menu:

Menu Options:
1. Logout
2. Display all books
3. Display borrowed books
4. Borrow a book
5. Return a book
6. Show fines
7. Pay fines

• Display all books: View all books in the library.
• Display borrowed books: View books you have borrowed.
• Borrow a book: Borrow a book by entering its title.
• Return a book: Return a book by entering its title.
• Show fines: View any fines you owe (for students only).
• Pay fines: Pay fines (for students only).

Faculty Menu:

Menu Options:
1. Logout
2. Display all books
3. Display borrowed books
4. Borrow a book
5. Return a book

• Display all books: View all books in the library.
• Display borrowed books: View books you have borrowed.
• Borrow a book: Borrow a book by entering its title.
• Return a book: Return a book by entering its title.

Librarian Menu:

Menu Options:
1. Logout
2. Display all books
3. Add a book
4. Add a user
5. Delete a Book
6. Delete a User

• Display all books: View all books in the library.
• Add a book: Add a new book to the library by entering its details.
• Add a user: Add a new user (student, faculty, or librarian) to the system.
• Delete a book: Deletes a book from the library by entering its ISBN.
• Add a user: Deletes a user (student, faculty, or librarian) from the system by entering their User ID.

Exit:

Choose Exit from the main menu to save the library state and exit the program.

Example Workflow

Add a Book (Librarian):

1. Log in as a librarian.
2. Choose Add a book.
3. Enter the book details (title, author, publisher, year, ISBN).

Borrow a Book (Student):

1. Log in as a student.
2. Choose Borrow a book.
3. Enter the title of the book you want to borrow.

Return a Book (Student):

1. Log in as a student.
2. Choose Return a book.
3. Enter the title of the book you want to return.

Pay Fines (Student):

1. Log in as a student.
2. Choose Show fines to view your fines.
3. Choose Pay fines to pay the fines.

File Format (library.txt)

The program saves and loads data from a file named library.txt. The file format is as follows:

Books:

Book:Title,Author,Publisher,Year,ISBN,Status,BorrowDate,ReturnDate

Example:

Book:Book1,Author1,Publisher1,2000,ISBN1,Borrowed,1739145600,1741533402

Users:

User:Name,ID,Role,FineAmount

Example:

User:Student1,S1,Student,0

Borrowed Books:

Borrowed Books:UserID,ISBN

Example:

Borrowed Books:S1,ISBN1

Borrowing History:

Borrowing History:UserID,ISBN

Example:

Borrowing History:S1,ISBN1

Contributing

If you'd like to contribute to this project, feel free to:

• Report issues.
• Suggest new features.
• Submit pull requests.