Modern C++ for Absolute Beginners: A Friendly Introduction to the C++ Programming Language and C++11 to C++23 Standards

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2023

S. DmitrovićModern C++ for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-9274-7_23

23. Classes – Introduction

Slobodan Dmitrović¹  

(1)

Belgrade, Serbia

 

A class is a user-defined type. It consists of members. The members are data members and member functions. A class can be described as data and some functionality on that data, wrapped into one. An instance of a class is called an object. To only declare a class name, we write

class MyClass;

To define an empty class, we add a class body marked by braces {}:

class MyClass{};

To create an instance of the class, an object, we use:

class MyClass{};

int main()

{

    MyClass o;

}

Explanation:

We defined a class called ...