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What is the difference between Abstract Class and Interface
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Answer Posted / guest
An abstract class can have instance methods that implement a
default behavior. An Interface can only declare constants
and instance methods, but cannot implement default behavior
and all methods are implicitly abstract. An interface has
all public members and no implementation. An abstract class
is a class which may have the usual flavors of class members
(private, protected, etc.), but has some abstract methods.
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