When looking through the documentation for a specific class, you never actually see the source code for that class. Instead, you see an interface for that class with descriptions of what all of the constructors and methods do. This is a real-world example of what concept

Answer is abstraction.

Refer below.

Explanation:

When looking through the documentation for a specific class, you never actually see the source code for that class. Instead, you see an interface for that class with descriptions of what all of the constructors and methods do. This is a real-world example of abstraction.