Library Management System

Library Management System project is developed using VB.NET. The Project is based on the concept of managing book records. Talking about the project, it contains lots of features. A user can manage all the records, such as borrowed, return books, history, reader, users etc.

Features:

1. User Management
2. Borrow books, history, return books
3. Manage reader
4. Manage books
5. Generate report

Download Library Management System project is developed using VB.NET

A Library Management System (LMS) is a project to manage book inventory, issue/return records, and users in a library. Below is a simple C program for an LMS with basic functionality:

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Features:

1. Add a Book: Add a book to the library database.
2. Display Books: Show all available books in the library.
3. Issue a Book: Issue a book to a user.
4. Return a Book: Return a book to the library.
5. Exit: Save and exit the program.

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Source Code

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#define MAX_BOOKS 100
#define TITLE_LEN 50
#define AUTHOR_LEN 50

typedef struct {
    char title[TITLE_LEN];
    char author[AUTHOR_LEN];
    int id;
    int isIssued; // 0 = Available, 1 = Issued
} Book;

Book books[MAX_BOOKS];
int totalBooks = 0;

void addBook() {
    if (totalBooks >= MAX_BOOKS) {
        printf("Library is full! Cannot add more books.\n");
        return;
    }

    printf("Enter Book ID: ");
    scanf("%d", &books[totalBooks].id);
    printf("Enter Book Title: ");
    scanf(" %[^\n]", books[totalBooks].title);
    printf("Enter Author Name: ");
    scanf(" %[^\n]", books[totalBooks].author);
    books[totalBooks].isIssued = 0; // Initially available
    totalBooks++;
    printf("Book added successfully!\n");
}

void displayBooks() {
    if (totalBooks == 0) {
        printf("No books in the library.\n");
        return;
    }

    printf("\nList of Books in the Library:\n");
    printf("----------------------------------------------------\n");
    printf("ID\tTitle\t\t\tAuthor\t\t\tStatus\n");
    printf("----------------------------------------------------\n");
    for (int i = 0; i < totalBooks; i++) {
        printf("%d\t%-20s\t%-20s\t%s\n", books[i].id, books[i].title, books[i].author,
               books[i].isIssued ? "Issued" : "Available");
    }
    printf("----------------------------------------------------\n");
}

void issueBook() {
    int bookId, found = 0;
    printf("Enter the Book ID to issue: ");
    scanf("%d", &bookId);

    for (int i = 0; i < totalBooks; i++) {
        if (books[i].id == bookId) {
            found = 1;
            if (books[i].isIssued == 1) {
                printf("Book is already issued.\n");
            } else {
                books[i].isIssued = 1;
                printf("Book issued successfully!\n");
            }
            break;
        }
    }

    if (!found) {
        printf("Book not found.\n");
    }
}

void returnBook() {
    int bookId, found = 0;
    printf("Enter the Book ID to return: ");
    scanf("%d", &bookId);

    for (int i = 0; i < totalBooks; i++) {
        if (books[i].id == bookId) {
            found = 1;
            if (books[i].isIssued == 0) {
                printf("Book is not issued.\n");
            } else {
                books[i].isIssued = 0;
                printf("Book returned successfully!\n");
            }
            break;
        }
    }

    if (!found) {
        printf("Book not found.\n");
    }
}

void saveToFile() {
    FILE *file = fopen("library.dat", "wb");
    if (file == NULL) {
        printf("Error saving data.\n");
        return;
    }

    fwrite(&totalBooks, sizeof(int), 1, file);
    fwrite(books, sizeof(Book), totalBooks, file);
    fclose(file);
    printf("Library data saved successfully!\n");
}

void loadFromFile() {
    FILE *file = fopen("library.dat", "rb");
    if (file != NULL) {
        fread(&totalBooks, sizeof(int), 1, file);
        fread(books, sizeof(Book), totalBooks, file);
        fclose(file);
    }
}

int main() {
    int choice;

    loadFromFile();

    do {
        printf("\nLibrary Management System\n");
        printf("1. Add Book\n");
        printf("2. Display Books\n");
        printf("3. Issue Book\n");
        printf("4. Return Book\n");
        printf("5. Exit\n");
        printf("Enter your choice: ");
        scanf("%d", &choice);

        switch (choice) {
        case 1:
            addBook();
            break;
        case 2:
            displayBooks();
            break;
        case 3:
            issueBook();
            break;
        case 4:
            returnBook();
            break;
        case 5:
            saveToFile();
            printf("Exiting the program. Goodbye!\n");
            break;
        default:
            printf("Invalid choice. Please try again.\n");
        }
    } while (choice != 5);

    return 0;
}

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Key Features:

1. Persistent Storage: Library data is saved in library.dat and loaded automatically at startup.
2. Menu-Driven Interface: Simplifies user interaction.
3. Basic Functionalities: Adding, displaying, issuing, and returning books.

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Compilation and Execution:

1. Save the code in a file named library_management.c.
2. Compile it using:

   gcc library_management.c -o library_management
   

3. Run the program:

   ./library_management
   

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Potential Enhancements:

1. Search Functionality: Allow searching by title or author.
2. Advanced Status: Track who issued the book and due dates.
3. Sorting: Display books sorted by title, author, or ID.
4. Graphical Interface: Use a library like GTK for GUI.

This implementation provides a solid foundation for a library management system in C.