Declaring and Manipulating Data into Arrays

Question

Answer
(Circle the correct answer)

1. How many components are contained in the following array declarations?

double values [14];

a. 14

b. 15

2. Write a for loop that sums the numbers in an array with 5 components.

int sum = 0

for( int i=0; i<5; i++)

sum+=array[i];

3. An array _________________.

a. is a simple data type

b. is a structured data type

4. Simple data types are building blocks for arrays.

yes

5. An array index starts at 1.

no

6. In C++, array is a reserved word.

no

7. The following code allows the size of an array to be determined at execution:

int n;

cout << “Enter the size of the array: “;

cin >> n;

int array[n];

yes

Question

Answer
(Circle the correct answer)

1. How many components are contained in the following array declarations?

double values [14];

a. 14

b. 15

1. The following statements assign 5 to the last value in the array.

int array [10];

array [10] = 5;

No,

Array[9]=5;

1. Given:

int array[5] = { 1, 2, 3}

What are the values of each array component?

{1,2,3,0,0}

4. The following code initializes each component to 0:

int array[3];

array[3] = {0};

No

5. The following code initializes each component to 0:

int array[3] = {0};

yes

6. The following code correctly initializes each component to 0:

int array[3];

for (int count = 0; count <= 3; count++)

array[count] = 0;

It does initializes each component too but because the array maximum index is 2

7. The following code initializes each component to 0:

int array[3];

for (int count = 1; count <= 3; count++)

array[count] = 0;

No, _IndexOutOf BoundException

Question

Answer
(Circle the correct answer)

1. Given the prototype:

void function(int array[5]);

The formal parameter is an array of 5 elements.

T

1. When passing an array to a function, the size of the array is automatically passed.

F

3. Given the declaration:

int array[5];

and the prototype:

void function(int []);

Which code calls a function with array as the argument?

a. function (array);

b. function (array[]);

c. function (array[5]);

4. Which prototype for a function reads in an integer array and returns the array to the calling function?

a. int function();

b. int[] function();

c. void function(int array[]);

d. void function(int &array[]);