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What’s the difference between an interface and an abstract class?

What’s the difference between an interface and an abstract class in java ?

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In: java Asked By: [JASON] (Anonymously)
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Answer #1

First let’s set them apart cause one is a class and one is an interface .
You said abstract class . That is a class that’s declared abstract and it can’t be instantiated, but it can be subclassed. It can have an abstract method (which is method that is declared without an implementation )
An interface on the other hand is easy to be spoted because of the keyword “INTERFACE” and is defined as a group of related methods with empty bodies. An interfaces has to be implemented.

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Answers Answered By: Sobolan_gri [ Grey Star Level]
Answer #2

Abstract class – abstract class is declared by ‘abstract’ keyword and we can’t create object of it.inside abstract method may be abstract type or normal.
Interface – it declared as interface keyword and we can’t create object of it. inside interface method are by default public,abstract.so we can say that interface is pure abstract class

Answers Answered By: arif [3 Grey Star Level]

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