Question

1.when we create a dynamic array the area of memory used is called

a. runtime area

b. usable memory area

c. heap

d. stack

Answer 1

Kindly cherry-pick up the language applicable (one of C/C++/Java)

The answer to the question is at the end, after explaining the different types of memory-allocations.

Arrays can be declared in three ways :

On the stack, locally in functions :

Following is the common manner of declaring a function-local array, on a stack.

void foo()

{

int arr[] = {123, 53, 21, 89};

}

On the heap, dyamically :

For C :

void foo()

{

int *arr = (int*) malloc(4 * sizeof(int));

arr[0] = 123;

arr[1] = 53;

arr[2] = 21;

arr[3] = 89;

}

For C++ :

void foo()

{

int *arr = new int[4];

arr[0] = 123;

arr[1] = 53;

arr[2] = 21;

arr[3] = 89;

}

For Java :

void foo()

{

int arr[] = new int[4];

arr[0] = 123;

arr[1] = 53;

arr[2] = 21;

arr[3] = 89;

}

All other variables :

Everything else uses the data segment of the process/program.

Thus, the correct option is :

c. heap