AP Computer Science – Quiz Involving Multiple Classes

This quiz will involve the writing of three classes to handle information about a book club. A book club will consist of people who each have their own library of books (their own private collection of books).

Classes you will write:

1. A Book Class – maintains the following information about a book:

private String title; //Title of book

private String author; //Author of book

private int numPages; //Number of pages in book

2. A BookLibrary Class – maintains the following information about a library of books:

private String owner; //Name of owner of the library

private int numBooks; //Number of books in the library

private ArrayList bookList<Book> (); //An ArrayList of Book objects (contains all books in the library)

3. A BookClub Class – maintains the following information about a book club:

private ArrayList clubList<BookLibrary>(); //An ArrayList with a BookLibrary object for each member of the club

Here are the methods that you must write for each class (on your own paper):

Book Class

• Default Constructor (sets empty title, author, 0 for pages)
• Initalize Constructor (title, author, pages)
• String getTitle() // returns title of book
• String getAuthor() // returns author of book
• int getNumPages // returns number of pages in book
• String toString() // displays the book title, author, pages (see example below)

The End of an Era

By Wendell Gilliam

346 pages

BookLibrary Class

• Default Constructor (parameter is file path used to access the text file which loads owner, number of books and then title, author, number of pages for each book in library)
• String getOwner() // returns owner of library
• int getNumBooks() // returns the number of books in library
• Book getBook(int i)// returns book i from the library
• void addBook(Book b) //adds book b to the library
• void removeBook(String t) //removes the book with title t from the library
• int getNumBooksByAuthor(String auth) // returns the number of books in library by author auth
• void showAllByAuthor(String auth) // displays the titles of all books in the library by the author auth or “none” if there are none(see example below)

Books in library by Wendell Gilliam:

The End of an Era

Farewell to Reality

When We Were Wild

OR

none

• String toString() // displays the library owner, number of books and book title, author and number of pages for each book in the library (see example below)

Owner: Sarah Bellum

Books: 8

Book List

The End of an Era

By Wendell Gilliam

346 pages

That Is All He Said

By Grace LaFleur

278 pages

Etc…

BookClub Class

• Default Constructor (Creates an empty ArrayList of type BookLibrary)
• void addLibrary(BookLibrary lib) // adds BookLibrary lib to the ArrayList
• BookLibrary getLibrary(int i) // returns library i from the ArrayList
• Book getBook(int i, int n) // returns book n from library i from the ArrayList
• int getnumMembers() // returns the number of members in the club
• int getTotalNumBooks() // returns the total number of books in all libraries in the club
• int getNumBooksByAuthor(String auth) // returns the number of books in all libraries by author auth (duplicates OK)
• void showAllOwnersOfTitle(String title) // displays the names of all club members who have a book with the title title (see example below) or “none”

Club members who own the book The End of an Era:

Wendy Stanfield

Brandy Weinstein

OR

Club members who own the book Oh So Sweet!:

none

• BookLibrary uniqueClubBookList() // creates and returns a BookLibrary consisting of all uniquely title books in all member’s libraries (does not allow for duplicates)
• String toString // displays the owner and number of books for each library in the book club (see example below)

Owner 1: Wendy Stanfield, Books: 13

Owner 2: Allan Benjamin, Books: 9

Owner 3: Brandy Weinstein, Books: 21

Owner 4: Juan Ramirez, Books: 17

Total Books in Club: 60