Difficulty: Easy
Correct Answer: The program will report compile time error.
Explanation:
Introduction / Context:
This question checks C++ access control for class members and how it affects compilation. The class exposes two member functions: one is private and multiplies two integers, while the other is public and performs integer division. The main function attempts to call both, which leads to an access-control issue at compile time.
Given Data / Assumptions:
AdditionOne
is declared in the private section of the class.AdditionTwo
is declared in the public section.main
calls objCuriousTab.AdditionOne(4, 8)
and then objCuriousTab.AdditionTwo(8, 8)
.
is used but does not change access rules.
Concept / Approach:
In C++, class members are private by default if not specified, and any member explicitly placed under private:
can be accessed only by member functions, friends, or privileged code. A call from main
to a private member function is not permitted and must be rejected by the compiler.
Step-by-Step Solution:
Identify access: AdditionOne
is in the private section.Attempted call: objCuriousTab.AdditionOne(4, 8)
originates outside the class.C++ rule: calling a private member from outside the class is ill-formed.Therefore, compilation fails before any code runs or outputs are produced.
Verification / Alternative check:
Move AdditionOne
to the public section or create a public wrapper that calls it; compilation will then succeed and you can observe outputs.
Why Other Options Are Wrong:
Option A/B/C assume successful execution. In reality, the program never links or runs due to the illegal private call.Option E is incorrect because AdditionTwo
is public and would be callable if the first error did not exist.
Common Pitfalls:
Forgetting that access control is enforced at compile time, not run time, and assuming the presence of default arguments changes accessibility (it does not).
Final Answer:
The program will report compile time error.
Discussion & Comments