Deck 7: Arrays

Question 1

In the expression
cout << score[i] << endl;
i is called the

Answer 1

index or subscript

Question 2

The locations of the various indexed variables in an array can be spread out all over the memory.

Answer 2

False

Question 3

Arrays can be passed to functions.

Answer 3

True

Question 4

If you put a value in the square brackets of a one-dimension array parameter,this value is _________ by the compiler.

Question 5

A computer's memory consists of numbered locations called __________.

Question 6

If a function is expecting a pass by reference parameter,you can pass an index variable from an array of the same base type to that function.

Question 7

Write the declaration for a function named funct1 that expects an array of floats,the number of elements in the array and does not return any value.

Question 8

If you use the const modifier in a function declaration,you do not include it in the function definition.

Question 9

In the expression
double score[10];
double is called the ___________ of the array

Question 10

The following array declaration is legal
double scores[]={0.1,0.2,0.3};

Question 11

If your index used to access the indexed variables of the array has the value of a non-existent index,this is called _________

Question 12

When you have a function that expects an array,it should also expect the size of the array or the number of indexed variables with valid data.

Question 13

The following function will work with any size integer array.
void function1int array[],int numElements);

Question 14

The modifier that guarantees that an array argument will not be changed is called ______.

Question 15

Arrays can be returned from a function.

Question 16

The following function declaration guarantees the values in the array argument are not changed.
void function1int array[],int numElements);

Question 17

Write the code to declare a two dimension array of integers with 10 rows and 20 columns.

Question 18

Write the code to declare an array of 10 doubles named list;

Question 19

The computer remembers the address of which indexed variables)in an array? ______

Question 20

The indexed variables members)of an array must be integers.

Question 21

Given an array named scores with 25 elements,what is the correct way to access the 25^th element?

A)scores+25
B)scores[24]
C)scores[25]
D)scores[last]

Question 22

What is wrong with the following code fragment?
Const int SIZE =5;
Float scores[SIZE];
Forint i=0; i<=SIZE;i++)
{
Cout << "Enter a score\n";
Cin >> scores[i];
}

A)Array indexes start at 1 not 0
B)Arrays must be integers
C)Array indexes must be less than the size of the array
D)Should be cin >> scores[0];

Question 23

What are the valid indexes for the array shown below?
Int myArray[25];

A)0-25
B)0-24
C)1-25
D)1-24

Question 24

What is the output of the following code fragment?
Int array[4][4],index1,index2;
Forindex1=0;index1<4;index1++)
Forindex2=0;index2<4;index2++)
Array[index1][index2]=index1 + index2;
Forindex1=0;index1<4;index1++)
{
Forindex2=0;index2<4;index2++)
Cout << array[index1][index2] << " ";
Cout << endl;
}

A)0 1 2 3 1 2 3 4
2 3 4 5
3 4 5 6
B)0 1 2 3 0 1 2 3
0 1 2 3
0 1 2 3
C)0 0 0 0 1 1 1 1
2 2 2 2
3 3 3 3
D)0 0 0 0 0 1 2 3
0 2 4 6
0 3 6 9

Question 25

Which of the following correctly declare an array that can hold up to 3 rows of 5 columns of doubles?

A)int array[3],[5];
B)int array[3][5];
C)float array[3][5];
D)float array[3,5];

Question 26

An _______ is used to process a collection of data all of which is the same type

Question 27

Why should you use a named constant for the size of an array?

A)Readability of code
B)Makes changes to the program easier
C)Helps reduce logic errors
D)All of the above

Question 28

Given an array of integers of size 5,how does the computer know where the 3^rd indexed variable is located?

A)It adds 3 to the base address of the array
B)It adds space for 3 integers to the base address of the array
C)It remembers where all the indexed variables of the array are located.
D)None of the above

Question 29

What is wrong with the following code?
Float scores[10],total;

A)Cannot declare regular and array variables together.
B)Arrays must be integers
C)The 10 should be replaced with a variable name,whose value is input from the user
D)Nothing.

Question 30

Which of the following function declarations will accept the following two-dimension array?
Int pages[10][30];

A)void f1int pages[][],int size);
B)void f1int pages[][30],int size);
C)void f1int pages[10][],int size);
D)void f1int& pages,int size);

Question 31

The individual variables that comprise an array are called __________

Question 32

If you need a function that will handle multi-dimensional arrays,you must specify the following sizes inside the square brackets.

A)All the sizes
B)All sizes except the last dimension
C)All sizes except the first dimension
D)None of the sizes

Question 33

Which of the following will read values from the keyboard into the array? Assume the size of the array is SIZE).

A)cin >> array;
B)cin >> array[];
C)cin >> array[SIZE];
D)fori=0;i> array[i];

Question 34

Which of the following will correctly assign all the values in one array to the other array? Assume both arrays are of the same type and have SIZE elements)

A)array1=array2;
B)array1[]=array2;
C)fori=0;iD)fori=0;i