C++ Programming - OOPS Concepts - Discussion

Abstraction which denotes/shows the essential characteristics of an object which distinguish it from all other kinds of objects.

Ex. Consider a person details.

Doctor needs || Interviewer needs
>name of patient || >name of candidate
>age of patient || >Qualification of candidate
>height || >Result
>Blood pressure || >Skills etc.
>weight
etc.


Both of above doctor and interviewer needs the information of person but with different aspect.

Data hiding is part of data abstraction.

Abstraction refers to hiding the complexity i.e. Hiding the steps used to perform operation.

But data hiding refers to hiding certain data from the user.

So data hiding will be the correct answer.

Abstraction & Encapsulation are vice versa concept.

What is the difference between DATA ABSTRACTION and DATA HIDING?

According to me answer should be abstraction because it hides the complexity from the user and provides the required information to the user.

As we are showing only essential information to the client why it can't be abstraction. A/q to the definition it should be. Please clear b/w abstraction and data hidding.

Abstraction is the concept used for showing only essential information while encapsulation (i.e. data hiding) is a concept used for hiding the irrelevant information from the user.

These two concepts work together in any application.

E.g. In an ATM machine, the whole process is hidden from us (Encapsulation) while only read info is given to us like our balance etc. (Abstraction)

Data Encapsulation : It is the process of binding of the data and functions together as a single unit.
Data Abstraction : It is the process of exposing only the interfaces and hiding the other details from the user.

What is the difference between abstraction and data hiding ?