LibrarySystem/docs/index.md

Documentations

Table of Content
Main
Book
Book Factory
User
User Factory

Main

Functions

Return	Method	Description
boolean	borrowBook(User user, Book book)	Return if the borrow of the book on both BookFactory and UserFactory is successful
boolean	returnBook(User user, Book book)	Return if the return of the book on both BookFactory and UserFactory is successful
int[]	calDueDate(int days)	Calculate the due date from the current date according to user’s permission
int[]	currentDay()	Returns the current date in an array form

Book

Constructors

Method	Description
Book(int id)	Create a book with a specific id
Book(String title, int id)	Create a book with specific id and title

Functions

Return	Method	Description
String	getTitle()	Returns the title of the book
String	getStatus()	Returns the status of the book
String	getId()	Returns the id of the book
void	setTitle()	Set the title of the book
boolean	rent(int[] dueDate)	Returns if the rent action is successful and set the due date to the given input
void	returned()	Return the book
double	overdueFine(int[] currentDay)	Calculate and return the amount of fine to be charged (Fine rate is 0.25 per day; Max fine is 5)

Book Factory

Constructors

Method	Description
BookFactory()	Creates an empty BookFactory

Functions

Return	Method	Description
Book	newBook(String title)	Creates a new Book with the given title and returns it
Book	getBook(int index)	Returns the book of the given index if it exist, else throw null pointer exception
Book	getBook(String title)	Returns the book of the given title if it exist, else throw null pointer exception
void	update(Book newbook)	Replaces the existing book of the same id with this new one

User

Constructors

Method	Description
User(String name, int id, int limit)	Create a new User with given name, id and limit

Functions

Return	Method	Description
String	getName()	Returns the name of the user
int	getId()	Returns id of the user
void	setName()	Set the name of the user
boolean	status()	Check if the user reached the limit of amount of books the user can borrow
List	bookStatus()	Return a list consisting of book ids for all the books rented by the user
boolean	borrowNewBook(int id)	Check if the user status if true then add the id to the list of the books borrowed by the user
boolean	returnBook(int id)	Check if the book is borrowed by the user then remove it from the list

User Factory

Constructors

Method	Description
UserFactory()	Creates a new empty factory

Functions

Return	Method	Description
User	newUser(String name, int limit)	Creates a new user and returns the created user
User	getUser(String name)	Gets the user with the given name from the factory
User	getUser(int index)	Gets the user with the given id from the factory
void	update(User oldUser, User newUser)	Update by replacing the existing user with the new one