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|Java - Interview Questions and Answers|
|Ans. Base Class is a relative term used to signify the Parent class in Parent - Child or Base - derived relationship.|
Derived Class is a relative term used to signify the Child class in Parent - Child or Base - derived relationship.
Abstract Class is a class that is not allowed to be instantiated and hence can serve only a base class for it's usage.
Concrete Class is the class which is supposed to be instantiated and hence provide definition for all implementing interface methods and extending abstract methods.
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|Differences between abstract class and interface ?|
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