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Answer Posted / harish
Interface is nothing but an unimplemented class. It
contains the method signatures. The method access
specifier may be abstract. The sub class should implement
all the methods, which are defined in the Interface. If
you don?t implement any method that class should be an
abstract class. Using Interface, It enforces the sub
classes to implement the same. So that, you can create an
instance of any sub class.
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