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Abstract Classes
An abstract class is bassiclaly a can never be instantiated,its mainly purpose to be extended the subclass,coding with abstract subclass we take advantages of polymorfism and give us the greatest degree for the flexibility and extensibility.we cant mark a class a oth abstract and final.they have a very similar bt diff meanings.An abstract class must be subclassed. wherer as final class must not be subclassed. if we see that combination of abstract and final modifier,used for the class or method declaration the code will not be compile.
Posted By: Name:Rajesh Kr URL: Abstract Classes