A Complete Overview of Encapsulation in C++:
Abstraction, as we know, hides the implementation details from the user and exposes only the interface that is required by the user.
In this tutorial, we will discuss yet another important feature of OOP i.e. Encapsulation. Abstraction and encapsulation go hand in hand. In fact, we can say the encapsulated code helps us in abstraction. In other words, encapsulation and abstraction are closely bound together.
What Is Encapsulation?
Data encapsulation refers to the process of binding together data and functions or methods operating on this data into a single unit so that it is protected from outside interference and misuse.
This is an important object-oriented programming concept and it leads to yet another OOP concept known as “Data hiding”. Encapsulation hides data and its members whereas abstraction expose only the necessary details or interfaces to the outside world.
In a way, abstraction presents the “abstract view” of the hidden data to the outside world. Thus we already made a statement that encapsulation and abstraction go hand in hand.
Encapsulation also lead to data abstraction or hiding. As using encapsulation also hides the data. In the above example the data of any of the section like sales, finance or accounts is hidden from any other section.
In C++ encapsulation can be implemented using Class and access modifiers. Look at the below program:
