Modern C++ for Absolute Beginners: A Friendly Introduction to C++ Programming Language and C++11 to C++20 Standards

© Slobodan Dmitrović 2020

S. DmitrovićModern C++ for Absolute Beginnershttps://doi.org/10.1007/978-1-4842-6047-0_23

23. Classes - Introduction

Slobodan Dmitrović¹ 

(1)

Belgrade, Serbia

 

Class is a user-defined type. A class 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 MyClass. Then we created an object o of type MyClass. It is said ...