An Abstract class is cannot be instantiated.means cannot make object of th

what's the difference between abstract class and concreate
class? what's the meaning of standard template library(STL)?

Question Posted / jijo o r

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Answer Posted / jijo o r

An Abstract class is cannot be instantiated.means cannot
make object of this class.It has contains one or more
methods ..but it no implement..

interfaces are same as abstract classes only difference is we
an only define method definition and no implementation.

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