What is the role of destructors in Classes?

CPP - Quiz(MCQ)

To destroy an object when the lifetime of an object ends

To modify the data whenever required

To call private functions from the outer world

To initialize the data members of an object when it is created

Correct Answer : To destroy an object when the lifetime of an object ends

Explanation : Destructors are used in Classes to destroy an object after its lifetime is over i.e. to free resources occupied by that object.

Recently Updated in CPP Questions

What is the signature of math in function using command line arguments?

int main(int argc, char **argv);

int main(int argc, char const **argv);

int main(int argc, char const *argv[]);

All of the above

Correct Answer : All of the above

Explanation : Any of the above signature can be used while using command line arguments in C++ programs

Which of the following gives the name of the program if the second parameter to the main fucntion is char **argv?

argv[0]

argv[1]

argv[2]

argv[3]

Correct Answer : argv[0]

Explanation : The first string in the list of command line arguments represents the name of the program which can be accessed by using argv[0].

What does the first parameter of the main function represent?

List of command line arguments

Stack of command line arguments

Number of command line arguments

Dictionary of command line arguments

Correct Answer : Number of command line arguments

Explanation : The first argument of the main() function represents the number of command line arguments that are passed.

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