What is the difference between
abstract class and interface?
a) All the methods declared inside an
interface are abstract whereas abstract class must have at least one abstract
method and others may be concrete or abstract. b) In abstract class, key word
abstract must be used for the methods whereas interface we need not use that
keyword for the methods. c) Abstract class must have subclasses whereas
interface can’t have subclasses.
Blog Author: Vijay Kumar
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