Problem Set 12: Library Rental(Winter Break Assignment)

Task Outline

• Due Date: Monday, March 2nd, 2020
• Total Points: 10
• Implement a Java program that manages an electronic book rental system for a library.

Background Theory

• The libraries of SmallTownX need a new electronic book rental system, and it is up to you to build it. SmallTownX has two libraries. Each library offers many books to rent. Customers can print the list of available books, borrow, and return books.
• Four classes have been given: Book, Library, LibraryTest, and LibraryJUnitTest. These classes provide the functionality for the book database. You must implement the missing methods in the file Library.java to make these classes work.

The Problem Scope

• Your task for this problem set is to implement the Library class. It is the class that will represent each library, and manage a collection of books. All libraries have the same hours: 9AM to 5PM daily. However, they have different addresses and book collections (i.e., ArrayLists of Book objects).
• The files Book.java, Library.java, LibraryTest.java and LibraryJUnitTest.java have been provided for you. public static void main(String[] args) method is included in LibraryTest.java which creates two libraries, and then performs some operations on the books. However, most of the necessary methods in the file Library.java are missing.
• Specifically, the methods you will need to define and implement are the following:

public static String displayOpeningHours()
public String displayAddress()
public String addBook(Book novel)
public String borrowBook(String novelName)
public String returnBook(String textName)

Hints

• Note that all of these methods return a String. If you examine the output of the program run, you will notice that every time some method is called, it returns a confirmation message.
• Do not include any System.out.println() statements to display a confirmation message to the output. These String messages are return values from each method, which are then printed out in the file LibraryTest.java.
• Be careful when comparing String objects. Use first.equals(second) for comparing the contents of first and second.
• You should get a small part working at a time. Start by commenting out the entire public static void main(String[] args), then uncomment it line by line. Run the program, get the first lines working, then uncomment the next line, get that working, etc.
• You must not modify the code in Book.java, LibraryTest.java, and LibraryJUnitTest.java.
• This is a much tougher assignment than what you are accustomed to. Start working on this project as soon as possible, and leave plenty of time for debugging. Also, I will be checking carefully for plaigiarism violations.

Example Case

• The output when you run this program should be similar to the following:

Adding books to the first library:
You have successfully added The Da Vinci Code
You have successfully added Le Petit Prince
You have successfully added A Tale of Two Cities
You have successfully added The Lord of the Rings

Library hours:
Libraries are open daily from 9am to 5pm.

Library addresses:
10 Main St.
228 Liberty St.

Borrowing The Lord of the Rings:
You have successfully borrowed The Lord of the Rings
Sorry, this book is already borrowed.
Sorry, this book is not in our catalog.

Books available in the first library:
The Da Vinci Code
Le Petit Prince
A Tale of Two Cities

Books available in the second library:
No books in our catalog.

Returning The Lord of the Rings to the second library:
Sorry, this book is not in our catalog.

Returning The Lord of the Rings to the first library:
You have successfully returned The Lord of the Rings

Books available in the first library:
The Da Vinci Code
Le Petit Prince
A Tale of Two Cities
The Lord of the Rings

Code Distribution

Description	File Size	File Name
Java Source Code for Library Rental	12KB	pset12.zip

Contents of pset12.zip:

PSet12LibraryRental/
├── Book.class
├── Book.ctxt
├── Book.java
├── Library.class
├── Library.ctxt
├── Library.java
├── LibraryJUnitTest.class
├── LibraryJUnitTest.ctxt
├── LibraryJUnitTest.java
├── LibraryTest.class
├── LibraryTest.ctxt
├── LibraryTest.java
├── package.bluej
└── README.TXT

Specification

• Write a Java program in the file Library.java that manages an electronic book rental system for a library.
• You will write your solutions in the following functions where it states: YOUR CODE HERE

public static String displayOpeningHours()
public String displayAddress()
public String addBook(Book novel)
public String borrowBook(String novelName)
public String returnBook(String textName)

Testing

• Click on the Run Tests button to execute the JUnit test bench. JUnit indicates a successful test with a green bar, and an unsuccessful test with a red bar.

Submission

• Upload the file Library.java to the Web-CAT automated grading platform.