Design and implement a C++ class which represents a Book, …
Design and implement a C++ class which represents a Book, and use this class in a main program which reads in information for multiple books from a data file and outputs them in a nice format to display what books are available for purchase.
Answer
Introduction
In this task, we are required to design and implement a Book class in C++. The main program should read information for multiple books from a data file and display them in a formatted manner to show the available books for purchase. In this academic discussion, we will analyze the requirements and propose an implementation strategy for the Book class, along with a sample usage in the main program.
Design Strategy for the Book Class
To design the Book class, we need to determine what attributes and behaviors should be included. Based on the given requirements, we can identify the following attributes for the Book class:
1. Title: The title of the book.
2. Author: The author of the book.
3. ISBN: The International Standard Book Number for the book.
4. Price: The price of the book.
5. Quantity: The number of available copies of the book.
Additionally, the Book class should have the following behaviors:
1. Constructor: A constructor that initializes the attributes of the Book object.
2. Getter and Setter methods: Methods to access and modify the attributes of the Book object.
3. Display method: A method to display the information of the book in a formatted manner.
Based on these requirements, we can define the Book class in C++ as follows:
“`cpp
class Book {
private:
std::string title;
std::string author;
std::string isbn;
double price;
int quantity;
public:
// Constructor
Book(std::string title, std::string author, std::string isbn, double price, int quantity);
// Getter and Setter methods
std::string getTitle();
std::string getAuthor();
std::string getISBN();
double getPrice();
int getQuantity();
void setTitle(std::string title);
void setAuthor(std::string author);
void setISBN(std::string isbn);
void setPrice(double price);
void setQuantity(int quantity);
// Display method
void display();
};
“`
Implementation of the Book Class
In the implementation of the Book class, we need to define the constructor, getter and setter methods, and the display method. The constructor will initialize the attributes of the Book object using the provided values. The getter and setter methods will allow us to access and modify the attributes of the Book object. The display method will output the information of the book in a formatted manner.