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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Mariann

1 months ago

Wait, does this mean I can create my own exception classes and throw them around like candy? That's kind of awesome, if you ask me. Though I bet the compiler's gonna have a field day with all those custom exceptions flying around.

upvoted 0 times

Annamae

1 days ago

User3: The compiler might not like all those custom exceptions.

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Soledad

13 days ago

User2: It prints: My exception.

upvoted 0 times

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Isadora

23 days ago

User1: Yes, you can create your own exception classes.

upvoted 0 times

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Lenny

1 months ago

Haha, this one's a classic tricky C++ question. I bet a lot of people are going to overthink it and pick the wrong answer. But not me! I'm sticking with A - it's gotta be the custom exception message, no doubt about it.

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Angella

1 months 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.

upvoted 0 times

Fletcher

9 days ago

I agree, it should print the custom message.

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Merrilee

16 days ago

I think it prints: My exception.

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Alease

1 months 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

2 months 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.

upvoted 0 times