UGC NET CSE | June 2014 | Part 2 | Question: 44

Question

A friend function can be used to

• A. Avoid arguments between classes.
• B. Allow access to classes whose source code is unavailable. 
• C. Allow one class to access an unrelated class. 
• D. None of the above 

Answer 1

In object oriented programming, a friend function that is a "friend" of a given class is allowed access to private and protected data in that class that it would not normally be able to as if the data was public.Normally, a function that is defined outside of a class cannot access such information. Declaring a function a friend of a class allows this, in languages where the concept is supported.

Hence,Option(C)Allow one class to access an unrelated class.

Comments

why not C?

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Sry,Sir option(C) is the clearly correct choice here. By Mistake i copied option(B) instead of Option(C) from Question for pasting.Here (B) can not be the answer.

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how easy this question is now sir see you are there to explain such easy answers when strangers ask but when i ask you put taunts. Sucha big partiality ..

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@Alok There are many easier questions here - but why none here - https://gateoverflow.in/user/alokthebranded/answers?

I dont think anyone here considers personal relationship or the difficulty of the question before answering.