How to get derived class from abstract base class

How to get derived class from abstract base class

References

Reference NO 1

http://stackoverflow.com/questions/15196676/how-to-get-derived-class-from-abstract-base-class

Reference NO 2

http://stackoverflow.com/questions/9361401/abstract-method-that-returns-an-instance-of-derived-class

Reference NO 3

http://msdn.microsoft.com/en-us/library/hy3sefw3.aspx

Reference NO 4

http://social.msdn.microsoft.com/Forums/en-US/4627bacf-4894-4b83-9868-7af5a417abf7/action?threadDisplayName=base-class-methods-calling-derived-class-methods-

Reference NO 5

http://www.cplusplus.com/forum/beginner/47848/

Reference NO 6

http://cboard.cprogramming.com/cplusplus-programming/136534-derived-class-still-abstract-class-not-sure-why-help-please.html

Reference NO 7

http://publib.boulder.ibm.com/infocenter/lnxpcomp/v8v101/topic/com.ibm.xlcpp8l.doc/language/ref/cplr142.htm

Reference NO 8

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