What is the difference between delete and delete[ ] in C++? - CPP Quiz

CPP - Quiz(MCQ)

What is the difference between delete and delete[ ] in C++?

A)

delete is a keyword whereas delete[ ] is an identifier

B)

delete is used to delete normal objects whereas delete[ ] is used to pointer objects

C)

delete is used to delete single object whereas delete[ ] is used to multiple(array/pointer of) objects

D)

delete is syntactically correct but delete[] is wrong and hence will give an error if used in any case

Correct Answer : delete is used to delete single object whereas delete[ ] is used to multiple(array/pointer of) objects

Explanation : delete is used to delete a single object initiated using new keyword whereas delete[ ] is used to delete a group of objects initiated with the new operator.

Recently Updated in CPP Questions

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

A)

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

B)

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

C)

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

D)

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?

A)

argv[0]

B)

argv[1]

C)

argv[2]

D)

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?

A)

List of command line arguments

B)

Stack of command line arguments

C)

Number of command line arguments

D)

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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