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home / developersection / interviews / what is abstract class?
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John William
John William

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3 Answers

Ritesh Behal
Ritesh Behal 18 Feb 2011
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We can't create object of abstract class and it must be inherited.
Anonymous User
Anonymous User 06 Jan 2011
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Abstract class is a class that can not be instantiated, it exists extensively for inheritance and it must be inherited. There are scenarios in which it is useful to define classes that is not intended to instantiate; because such classes normally are used as base-classes in inheritance hierarchies, we call such classes abstract classes.
Abstract classes cannot be used to instantiate objects; because abstract classes are incomplete, it may contain only definition of the properties or methods and derived classes that inherit this implements it's properties or methods.
John William
John William 20 Dec 2010
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What is abstract class?
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