Difference between interface and abstract class in java.??

Answer 1

An abstract class is a class defined using the abstract keyword. An interface is a completely abstract class that contain only abstract methods.
The main difference is that interfaces contain only abstract methods while an Abstract class can contain non-abstract method

Answer 2

This article may help you:
https://stackoverflow.com/questions/1913098/what-is-the-difference-between-an-interface-and-abstract-class

Answer 3

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Answer 4

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