What is abstraction in c++ 2011?

[saneha]

What is abstraction?

[Vuhelper]

Abstraction is a technique that only captures those details that are relevant to current perspective. Through the process of abstraction, a programmer hides all but the relevant data about an object in order to reduce complexity and increase efficiency.
Example:
Ali is a PhD student and also teaches BS students.
Here are two perspectives i.e. Student perspective and Teacher perspective. And if we considering Student perspective, then Designation (An attribute of Ali according to Teacher perspective) is irrelevant, so details about Designation is not stored in this case. Only relevant details will store such as rollno, name, age, cgpa etc.