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Namespaces - Programming

Q1:

Which of the following is absolutely neccessary to use a class Point present in namespace Graph stored in library?

A Use fully qualified name of the Point class.

B Use using statement before using the Point class.

C Add Reference of the library before using the Point class.

D Use using statement before using the Point class.

E Copy the library into the current project directory before using the Point class.

ANS:C - Add Reference of the library before using the Point class.

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