Creating objects in C++ - Try It Yourself

Creating objects

📖 Scenario: You are building a simple program to manage a library's book records. Each book has a title and a number of pages.

🎯 Goal: Create a Book class and then create an object of this class with specific details.

📋 What You'll Learn

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

Create an object of class Book named myBook.

Set the title of myBook to "The Great Gatsby".

Set the pages of myBook to 180.

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

💡 Why This Matters

🌍 Real World

Creating objects is the foundation of organizing data in programs, like managing books in a library system.

💼 Career

Understanding how to create and use objects is essential for software development jobs involving C++ or any object-oriented programming.

1

Create the Book class

Create a class called Book with two public members: a string called title and an int called pages.

C++

#include 
#include 

using namespace std;

class Book {
    // Your code here
};

int main() {

    return 0;
}

Need a hint?

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

2

Create an object of Book

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

C++

#include 
#include 

using namespace std;

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

int main() {
    // Your code here
    return 0;
}

Need a hint?

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

3

Set object members

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

C++

#include 
#include 

using namespace std;

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

int main() {
    Book myBook;
    // Your code here
    return 0;
}

Need a hint?

Use dot notation like myBook.title = "The Great Gatsby"; to set values.

4

Print the book details

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

C++

#include 
#include 

using namespace std;

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

int main() {
    Book myBook;
    myBook.title = "The Great Gatsby";
    myBook.pages = 180;

    // Your code here
    return 0;
}

Need a hint?

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