C++ Institute Exam CPA-21-02 Topic 1 Question 12 Discussion

Actual exam question for C++ Institute's CPA-21-02 exam

Question #: 12
Topic #: 1

[All CPA-21-02 Questions]

What happens when you attempt to compile and run the following code?

#include

using namespace std;

class BaseC

{

int *ptr;

public:

BaseC() { ptr = new int(10);}

BaseC(int i) { ptr = new int(i); }

~BaseC() { delete ptr; }

void Print() { cout << *ptr; }

};

int main()

{

BaseC *o = new BaseC(5);

o?>Print();

}

AIt prints: 5

BIt prints: 10

CIt prints: 1

DIt prints: 0

Show Suggested Answer

Suggested Answer: D

by Lavera at Apr 10, 2024, 11:19 AM

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Melinda

22 hours ago

Wait, are we sure the object is being deleted properly? If there's a memory leak, it might print some random value like 1 or 0.

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Lai

9 days ago

That makes sense, but I'm not sure. Let's see what others think.

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Nguyet

10 days ago

I believe the answer is A) It prints: 5 because the object is initialized with 5.

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Sharen

12 days ago

Hmm, I'm not so sure. What if the compiler optimizes the code and the object ends up being created with the default constructor instead of the one that takes an argument? Then it would print 10.

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Lai

16 days ago

I think the answer is B) It prints: 10.

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Brynn

18 days ago

The code will print 5, as we create a BaseC object with the constructor that takes an integer argument and pass in the value 5.

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