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If a class have a public member function and is called directly in the main function then ___________________________

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If a class have a public member function and is called directly in the main function then ___________________________

(a) Undeclared function error will be produced

(b) Out of memory error is given

(c) Program gives warning only

(d) Program shut down the computer

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Enquiry is from Public Member Functions in section Member Functions & its Types of Object Oriented Programming

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Right choice is (a) Undeclared function error will be produced

The best explanation: If the function is called directly without using any object then the compiler doesn’t gets to know that the function have to be called from a specific class. And if there are no global or in-scope function with same name then the compiler produces an error stating that the called function is undeclared.

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