Computer Science - Object Oriented Programming Using C++ - Discussion

Overloaded functions can have different return types as long as the parameters are different as well, so the compiler can recognise them with their unique signature.

A. Its not necessary to have same return type as return type isn't included in method signature.

B. Its not necessary to have same number of arguments in overloaded method.

C. Although its the common reason to use method overloading, however it is not necessary to use it for similar functionality.

D. Hence an answer.

The answer should be "both A & B".

Function overloading has to have some conditions.
1. Have the same return type
2. Have the same name.
--------------------------------
3. Different parameter is okay.
It has more details but... simply different parameter is allowed.

So, the answer is D but I think the answer should be 'A'

Why c is not the answer? sum time we need basic addition of object. S1=s1+s2;.

Where s1, s2, s3 are string.