Classes and objects in C++ - Mini Project: Build & Apply

Classes and Objects in C++

📖 Scenario: You are creating a simple program to manage information about books in a library.Each book has a title and a number of pages.

🎯 Goal: Build a C++ program that defines a Book class, creates an object of this class, sets its attributes, and displays the book details.

📋 What You'll Learn

Define a class named Book with two public attributes: title (string) and pages (int).

Create an object of the Book class named myBook.

Assign the title "The Great Gatsby" and pages 180 to myBook.

Print the book's title and number of pages in the format: Title: The Great Gatsby, Pages: 180.

💡 Why This Matters

🌍 Real World

Classes and objects help organize data and behavior in programs, like managing books in a library system.

💼 Career

Understanding classes and objects is essential for software development jobs, especially in C++ programming.

1

Define the Book class

Write a class named Book with two public attributes: title of type std::string and pages of type int.

C++

#include 
#include 

// Define the Book class here

int main() {

    return 0;
}

Need a hint?

Use class Book { public: std::string title; int pages; }; to define the class.

2

Create a Book object named myBook

Inside main(), create an object of the Book class named myBook.

C++

#include 
#include 

class Book {
public:
    std::string title;
    int pages;
};

int main() {
    // Create a Book object named myBook
    
    return 0;
}

Need a hint?

Use Book myBook; inside main() to create the object.

3

Assign values to myBook attributes

Set myBook.title to "The Great Gatsby" and myBook.pages to 180 inside main().

C++

#include 
#include 

class Book {
public:
    std::string title;
    int pages;
};

int main() {
    Book myBook;
    // Assign title and pages to myBook
    
    return 0;
}

Need a hint?

Use myBook.title = "The Great Gatsby"; and myBook.pages = 180;.

4

Print the book details

Write a std::cout statement to print the book's title and pages in this exact format: Title: The Great Gatsby, Pages: 180.

C++

#include 
#include 

class Book {
public:
    std::string title;
    int pages;
};

int main() {
    Book myBook;
    myBook.title = "The Great Gatsby";
    myBook.pages = 180;
    // Print the book details
    
    return 0;
}

Need a hint?

Use std::cout << "Title: " << myBook.title << ", Pages: " << myBook.pages << std::endl;.