$1.$ Give concise answers to the following questions $/10$

a$)$ What is the importance of using properties in a C# program?

$/4$

b$)$ When do local objects occupy memory $($Compile$-$time or run time$)?$ Explain.

$/3+3$

$2.$ Design a class representing a superstore item. You don$$t need to write implementations for any member functions, just list any public or private field, property, or method declarations you think; may be needed.

$/10$

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$3.$ In the following function implementation, there are $4$ syntax errors. Mark the errors in the code below with a circled number corresponding to the spaces provided, briefly explain why it is an error, and give a fix for it$.$

$1)$ Syntax Error:

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$2)$ Syntax Error:

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$3)$ Syntax Error:

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$4)$ Syntax Error:

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$/10$

Assignment $1$: Bookstore

Overview

Write a program that manages a simple Book Store by utilizing the Object$-$Oriented Programming Architecture.

Directions

A bookstore wants to develop a system to add$/$remove readers, add$/$remove books, track books rented and returned from registered readers, and show bookstore information. To endure books rented and returned, your program will need to track books and readers. A reader can rent a maximum of $2($two$)$ books, and he$/$she can rent a book if it is available at the store and not rented by other readers. The store can remove any book if the book is not already rented to someone. The store can also remove a reader, however, to remove a reader, all books rented by him$/$her must be returned otherwise, the system will generate an error message.

Your program must track each book and every reader. The implementation of your bookstore program can be done by the following steps:

$1.$ Create a Book class $($Fully implemented in the starter code.$)$

a$.$ Add fields for the book$$s name, serial, and status. $($Assume$,$ the bookstore has the same book of multiple copies. i$.$e$.,$ book names can be the same, however, will always differ by the serial number. i$.$e$.,$ together book name and serial will be unique!$)$

b$.$ Add a constructor that initializes every book$$s field with given values.

c$.$ Add a function to check the availability of a book.

d$.$ Add a function to rent a book.

e$.$ Add a function to return a book.

f$.$ Finally, add a function to show book information.

$2.$ Create a Reader class $($Some methods are implemented in the starter code.$)$

a$.$ Add fields for the reader$$s name and a list of books. $($Assume each reader$$s name is unique. i$.$e$.,$ there are no two readers in the bookstore with the same name.$)$

b$.$ Add a constructor that initializes the reader$$s name and creates an empty list of books.

c$.$ Add a function to rent a book and add the book to the reader$$s list.

d$.$ Add a function to return a book and remove the book from the list.

e$.$ Finally, add a function to show the reader information.

$3.$ Create a Bookstore class. $($Some methods are implemented in the starter code.$)$

a$.$ Add fields in order to store the list of books and the list of readers for the bookstore.

b$.$ Add a constructor to initialize all lists to an empty list.

c$.$ Add a method for adding a reader to the store.

d$.$ Add a method for removing a reader from the store. $($To remove a reader, all books rented by him$/$her must be returned first!$)$

e$.$ Add a method for adding a book to the store.

f$.$ Add a method to remove a book from the store. $($To remove a book, it should be available in the store, otherwise, the program should issue an error message!$)$

g$.$ Add a method to rent a book for a reader.

h$.$ Add a method to return a book from a reader.

i$.$ Add a method to show bookstore$$s all books information

j$.$ Finally, add a method to show bookstore$$s all readers information.