LibraryApplication.java

import java.util.Scanner;

// Main application class for the library management system
public class LibraryApplication {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);
        BookManager library = new BookManager();

        // Add some initial books to the library for demonstration, now including a section
        library.addBook("The Hobbit", "J.R.R. Tolkien", "Fantasy");
        library.addBook("Dune", "Frank Herbert", "Science Fiction");
        library.addBook("Foundation", "Isaac Asimov", "Science Fiction");
        library.addBook("Harry Potter and The Prisoner of Azkaban", "J.K. Rowling", "Fantasy");
        library.addBook("Gunahon Ka Devta", "Dharamvir Bharti", "Hindi Literature");
        library.addBook("The Science of Interstellar", "Kip Thorne", "Science");
        System.out.println();

        //Menu driven loop
        System.out.println("Library Management System Menu:");
        while (true) {
            // Print the menu options
            System.out.println("Please choose an option:");
            System.out.println("1. Show all books");
            System.out.println("2. Add a new book");
            System.out.println("3. Borrow a book");
            System.out.println("4. Return a book");
            System.out.println("5. Exit");
            System.out.print("Enter your choice: ");

            // Read the user's choice
            int choice = scanner.nextInt();
            scanner.nextLine();
            // Handle the user's choice
            switch (choice) {
                case 1:
                    library.showAllBooks();
                    break;
                case 2:
                    System.out.print("Enter the book title: ");
                    String title = scanner.nextLine();
                    System.out.print("Enter the book author: ");
                    String author = scanner.nextLine();
                    System.out.print("Enter the book section: ");
                    String section = scanner.nextLine();
                    // Call the updated addBook method
                    library.addBook(title, author, section);
                    break;
                case 3:
                    System.out.print("Enter the title of the book to borrow: ");
                    String borrowTitle = scanner.nextLine();
                    library.borrowBook(borrowTitle);
                    break;
                case 4:
                    System.out.print("Enter the title of the book to return: ");
                    String returnTitle = scanner.nextLine();
                    library.returnBook(returnTitle);
                    break;
                case 5:
                    System.out.println("Thank you for using the library. Goodbye!");
                    scanner.close();
                    return; // Exit the main method, which ends the program
                default:
                    System.out.println("Invalid choice. Please enter a number between 1 and 5.");
            }
            System.out.println();
        }
    }
}