What are the Similarities between abstract class and Interface in Java.

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Similarities between abstract class and Interface.


1.Abstract class and interface both are used to achieve abstraction. 


2.Abstract class and interface both can't be instantiated(we cannot create object for both) .


3.All the abstract methods must be overridden by the sub class. 


4.we can create reference Variables for both. 


5.we can go for dynamic(runtime) polymorphism

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