Arrays

Question 1

Declare an array named scores of twenty-five elements of type int .

Answer 1

int scores[25];

Question 2

Describe what is an array

Answer 2

A collection of contiguous or adjacent memory cells associated with one variable name and one type
An array is considered a data structure

Question 3

In C++, the array index begins at…

Answer 3

position 0

Question 4

range of array index values

Answer 4

Index values must be between 0 and (array size -1)

Question 5

How to initialize an array during declaration

Answer 5

Place the initializing values in braces. Example:

double sales[5] = {12,32,16,23,45};

Question 6

To copy, read, or compare arrays, it must be done…

Answer 6

componentwise

Question 7

2d ARRAYS

Answer 7

myarray[row][collums]

Question 8

What are parallel arrays used for?

Answer 8

To hold related information.

Question 9

How do you access an element of a two-dimensional array?

Answer 9

You need a pair of indices: one for the row position and one for the column position.

Question 10

When declaring a two-dimensional array as a formal parameter, what can you omit?

Answer 10

The size of the first dimension but not the second.

Question 11

What is the difference between a size declarator and a subscript?

Answer 11

The size declarator is used in a definition of an array to indicate the number of elements the array will have. A subscript is used to access a specific element in an array.

Question 12

C++ has no array _________ checking, which means you can inadvertently store data past the end of an array.

Answer 12

Bounds

Question 13

reference the 10th position of the array my array

Answer 13

n=myarray[10]