C++ Institute Exam CPA-21-02 Topic 1 Question 11 Discussion

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

Question #: 11
Topic #: 1

[All CPA-21-02 Questions]

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

#include

using namespace std;

class myClass : public exception

{

virtual const char* what() const throw()

{

return "My exception.";

}

} obj;

int main () {

try

{

throw obj;

}

catch (exception& e)

{

cout << e.what() << endl;

}

return 0;

}

AIt prints: My exception.

BIt prints: 0

CIt prints: 1

DCompilation error

Show Suggested Answer

Suggested Answer: B

by Mozell at Mar 17, 2024, 12:25 PM

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Angella

3 days ago

Okay, let's see. We're throwing a custom exception, and the catch block is set up to handle exceptions of type exception&. I'm pretty sure that means it'll print the custom message, so I'm going with A as well.

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Alease

5 days ago

Hmm, let me think this through. The code is throwing a custom exception, so it should print the message we defined in the what() method. I'm going to go with A on this one.

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Robt

12 days ago

Ah, the classic C++ exception handling question! This one's a breeze - the answer is clearly A. The code creates a custom exception class and throws an instance of it, which the catch block then properly handles and prints the expected message.

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