C++ Pointers Quiz w/ Arrays

What would be the output?

• 10, 20, 30, 40

• 10, 20, 30, 40, 50

• compile error

• runtime error

What would be the output?

• 12

• 15

• 14

• error

What would be the output?

• 5 4 3 2 1

• 1 2 3 4 5

• address of the elements

• error

What would be the output?

• 5.999, 5.999, 5.999, 5.999

• 5.999, 5.9, 5.000, 5.900

• address of the elements

• compile error

A pointer variable store a/an

• value of another value

• value of another variable

• address of another pointer

• address of another variable

The statement:

remove p;

deallocates the dynamic variable that is pointed to by p

• True

• False

What does the command below do?

int *a = NULL;

• Creates a pointer of type integer that is initially pointing to null

• Creates a pointer of type integer that is initially pointing to 0

• Creates a pointer in the heap

• None of the answers are valid

What is the output of the following program?

# include <stdio.h>

void fun(int *p){

*p = 10;

}

int main()

{

int y = 5;

fun(&y);

printf("%d", y);

return 0;

}

• 10

• 5

• error

• address

In an array, every element has the same

• data type

• subscript

• memory location

• all of the above

What is the proper way to double the size of an array?

int array[] = {10, 23, 3, 4};

int arraySize = 4;

• arraySize = array * 2

• array = new int[arraySize*2]

• array = new int[array]

  array *= 2

• array = 2* new int[array]