Is hiding implementation detail Encapsulation or Abstraction

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I have seen some people defining abstraction as :

Abstraction is hiding the implementation details by providing a layer over the basic functionality.

Is it not part of encapsulation to hide implementation details from the user of the object?

For example, if an animal class has a function eat() and if you provide this interface to the user then is it encapsulation or abstraction? I found this answer :

abstraction = the object externally; encapsulation (achieved through information hiding) = the object internally.

So what is the conclusion that object interface exposure is abstraction is encapsulation? Can someone brief me on this?

May 6 in Java by narikkadan
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