Example of program in use:
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): Add book
Please enter the title: Random
Please enter the number of pages: 540
Please enter the genre: Action
Please enter the author: Alex
Please enter the ISBN code: 3155684
Random was added
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): add patron
Please enter patron name: Burak
Please assign an ID: 001
Burak was added
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): Add librarian
Please enter librarian name: Enes
Please assign an ID: 001
Enes has been added
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): List books
Title: Random, Author: Alex, ISBN: 3155684, Borrowed: False
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): list librarians
Name: Enes, ID: 001
lWhat would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): list patrons
Name: Burak, ID: 001
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): borrow book
Please enter the title: Random
Random has been borrowed
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): list books
Title: Random, Author: Alex, ISBN: 3155684, Borrowed: True
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): return book
Please enter the title: Random
Random has been returned
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): List books
Title: Random, Author: Alex, ISBN: 3155684, Borrowed: False
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): remove book
Please enter the title: Random
Random was removed
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): Remove patron
Please enter patron name: Burak
Burak was removed
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): Remove librarian
Please enter librarian name: Enes
Enes has been removed
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): List books
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): List librarians
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): List patrons
What would you like to do (Add Book, Remove Book, Add Librarian, Remove Librarian, Add Patron, Remove Patron, Borrow Book, Return Book, List Books, List Patrons, List Librarians or END): end
Thank you for using my aplication have a good day :)