Now solved: Each of the following definitions and program segments has errors. Locate as

Define the following arrays: A) empNums, a 100-element array of int s B) payRates, a 25-element array of float s C) miles, a 14-element array of long s D) cityName, a 26-element array of string objects E) lightYears, a 1,000-element array of double s

Whats wrong with the following array definitions? int readings[-1]; float measurements[4.5]; int size; string names[size];

What would the valid subscript values be in a four-element array of double s?

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

What is array bounds checking? Does C++ perform it?

What is the output of the following code? int values[5], count; for (count = 0; count < 5; count++) values[count] = count + 1; for (count = 0; count < 5; count++) cout << values[count] << endl;

The following program skeleton contains a 20-element array of int s called fish. When completed, the program should ask how many fish were caught by fishermen 1 through 20, and store this data in the array. Complete the program. #include using namespace std; int main() { const int NUM_FISH = 20; int fish[NUM_FISH]; // You must finish this program. It should ask how // many fish were caught by fishermen 1-20, and // store this data in the array fish. return 0; }

Define the following arrays: A) ages, a 10-element array of ints initialized with the values 5, 7, 9, 14, 15, 17, 18, 19, 21, and 23. B) temps, a 7-element array of floats initialized with the values 14.7, 16.3, 18.43, 21.09, 17.9, 18.76, and 26.7. C) alpha, an 8-element array of chars initialized with the values J, B, L, A, *, $, H, and M.

Is each of the following a valid or invalid array definition? (If a definition is invalid, explain why.) int numbers[10] = {0, 0, 1, 0, 0, 1, 0, 0, 1, 1}; int matrix[5] = {1, 2, 3, 4, 5, 6, 7}; double radii[10] = {3.2, 4.7}; int table[7] = {2, , , 27, , 45, 39}; char codes[] = {'A', 'X', '1', '2', 's'}; int blanks[];

Given the following array definition: int nums[5] = {1, 2, 3}; What will the following statement display? cout << nums[3];

What is the output of the following code? (You may need to use a calculator.) double balance[5] = {100.0, 250.0, 325.0, 500.0, 1100.0}; const double INTRATE = 0.1; cout << fixed << showpoint << setprecision(2); for (int count = 0; count < 5; count++) cout << (balance[count] * INTRATE) << endl;

What is the output of the following code? (You may need to use a calculator.) const int SIZE = 5; int time[SIZE] = {1, 2, 3, 4, 5}, speed[SIZE] = {18, 4, 27, 52, 100}, dist[SIZE]; for (int count = 0; count < SIZE; count++) dist[count] = time[count] * speed[count]; for (int count = 0; count < SIZE; count++) { cout << time[count] << " "; cout << speed[count] << " "; cout << dist[count] << endl; }

Given the following array definitions double array1[4] = {1.2, 3.2, 4.2, 5.2}; double array2[4]; will the following statement work? If not, why? array2 = array1;

When an array name is passed to a function, what is actually being passed?

When used as function arguments, are arrays passed by value?

What is the output of the following program? (You may need to consult the ASCII table in Appendix B .) #include using namespace std; // Function prototypes void fillArray(char [], int); void showArray(const char [], int); int main () { const int SIZE = 8; char prodCode[SIZE] = {'0', '0', '0', '0', '0', '0', '0', '0'}; fillArray(prodCode, SIZE); showArray(prodCode, SIZE); return 0; } // Definition of function fillArray. // (Hint: 65 is the ASCII code for 'A')void fillArray(char arr[], int size) { char code = 65; for (int k = 0; k < size; code++, k++) arr[k] = code; } // Definition of function showArray. void showArray(const char codes[], int size) { for (int k = 0; k < size; k++) cout << codes[k]; cout << endl; }

The following program skeleton, when completed, will ask the user to enter 10 integers, which are stored in an array. The function avgArray, which you must write, is to calculate and return the average of the numbers entered. #include using namespace std; // Write your function prototype here int main() { const int SIZE = 10; int userNums[SIZE]; cout << "Enter 10 numbers: "; for (int count = 0; count < SIZE; count++) { cout << "#" << (count + 1) << " "; cin >> userNums[count]; } cout << "The average of those numbers is "; cout << avgArray(userNums, SIZE) << endl; return 0; } // // Write the function avgArray here. //

Define a two-dimensional array of int s named grades . It should have 30 rows and 10 columns.

Write a statement that assigns the value 56893.12 to the first column of the first row of the array defined in Question 7.20.

Write a statement that displays the contents of the last column of the last row of the array defined in Question 7.20.

Define a two-dimensional array named settings large enough to hold the table of data below. Initialize the array with the values in the table. 12 24 32 21 42 14 67 87 65 90 19 1 24 12 8

Fill in the table below so it shows the contents of the following array: int table[3][4] = {{2, 3}, {7, 9, 2}, {1}};

Write a function called displayArray7 . The function should accept a twodimensional array as an argument and display its contents on the screen. The function should work with any of the following arrays: int hours[5][7]; int stamps[8][7]; int autos[12][7]; int cats[50][7];

A video rental store keeps DVDs on 50 racks with 10 shelves each. Each shelf holds 25 DVDs. Define a three-dimensional array large enough to represent the stores storage system.

What header file must you #include in order to define vector objects?

Write a definition statement for a vector named frogs. frogs should be an empty vector of int s.

Write a definition statement for a vector named lizards. lizards should be a vector of 20 float s.

gators is an empty vector of int s. Write a statement that stores the value 27 in gators.

snakes is a vector of double s, with 10 elements. Write a statement that stores the value 12.897 in element 4 of the snakes vector.

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

Look at the following array definition. int values[10]; How many elements does the array have? What is the subscript of the first element in the array? What is the subscript of the last element in the array? Assuming that an int uses four bytes of memory, how much memory does the array use?

Why should a function that accepts an array as an argument, and processes that array, also accept an argument specifying the arrays size?

Consider the following array definition: int values[5] = { 4, 7, 6, 8, 2 }; What does each of the following statements display? cout << values[4] << endl; __________ cout << (values[2] + values[3]) << endl; __________ cout << ++values[1] << endl; __________

How do you define an array without providing a size declarator?

Look at the following array definition. int numbers[5] = { 1, 2, 3 }; What value is stored in numbers[2] ? What value is stored in numbers[4]

Assuming that array1 and array2 are both arrays, why is it not possible to assign the contents of array2 to array1 with the following statement? array1 = array2;

Assuming that numbers is an array of doubles, will the following statement display the contents of the array? cout << numbers << endl;

Is an array passed to a function by value or by reference?

When you pass an array name as an argument to a function, what is actually being passed?

How do you establish a parallel relationship between two or more arrays?

Look at the following array definition. double sales[8][10]; How many rows does the array have? How many columns does the array have? How many elements does the array have? Write a statement that stores a number in the last column of the last row in the array.

When writing a function that accepts a two-dimensional array as an argument, which size declarator must you provide in the parameter for the array?

What advantages does a vector offer over an array?

The _________ indicates the number of elements, or values, an array can hold.

The size declarator must be a(n) _________ with a value greater than _________.

Each element of an array is accessed and indexed by a number known as a(n) _________.

Subscript numbering in C++ always starts at _________.

The number inside the brackets of an array definition is the _________, but the number inside an arrays brackets in an assignment statement, or any other statement that works with the contents of the array, is the _________.

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

Starting values for an array may be specified with a(n) _________ list.

If an array is partially initialized, the uninitialized elements will be set to _________.

If the size declarator of an array definition is omitted, C++ counts the number of items in the _________ to determine how large the array should be.

By using the same _________ for multiple arrays, you can build relationships between the data stored in the arrays.

You cannot use the _________ operator to copy data from one array to another in a single statement.

Any time the name of an array is used without brackets and a subscript, it is seen as _________.

To pass an array to a function, pass the _________ of the array.

A(n) _________ array is like several arrays of the same type put together.

Its best to think of a two-dimensional array as having _________ and _________.

To define a two-dimensional array, _________ size declarators are required.

When initializing a two-dimensional array, it helps to enclose each rows initialization list in _________.

When a two-dimensional array is passed to a function the _________ size must be specified.

The ____________________ is a collection of programmer-defined data types and algorithms that you may use in your programs.

The two types of containers defined by the STL are ___________ and ______________.

The vector data type is a(n) ______________ container.

To define a vector in your program, you must #include the ____________ header file.

To store a value in a vector that does not have a starting size, or that is already full, use the ________________ member function.

To determine the number of elements in a vector, use the _____________ member function.

Use the ________________ member function to remove the last element from a vector.

To completely clear the contents of a vector, use the ___________ member function.

names is an integer array with 20 elements. Write a regular for loop, as well as a range-based for loop that prints each element of the array.

The arrays numberArray1 and numberArray2 have 100 elements. Write code that copies the values in numberArray1 to numberArray2.

In a program you need to store the identification numbers of 10 employees (as int s) and their weekly gross pay (as double s). A) Define two arrays that may be used in parallel to store the 10 employee identification numbers and gross pay amounts. B) Write a loop that uses these arrays to print each employees identification number and weekly gross pay.

Define a two-dimensional array of integers named grades. It should have 30 rows and 10 columns.

In a program you need to store the populations of 12 countries. A) Define two arrays that may be used in parallel to store the names of the countries and their populations. B) Write a loop that uses these arrays to print each countrys name and its population.

The following code totals the values in two arrays: numberArray1 and numberArray2. Both arrays have 25 elements. Will the code print the correct sum of values for both arrays? Why or why not? int total = 0; // Accumulator int count; // Loop counter // Calculate and display the total of the first array. for (count = 0; count < 24; count++) total += numberArray1[count]; cout << "The total for numberArray1 is " << total << endl; // Calculate and display the total of the second array. for (count = 0; count < 24; count++) total += numberArray2[count]; cout << "The total for numberArray2 is " << total << endl;

Look at the following array definition. int numberArray[9][11]; Write a statement that assigns 145 to the first column of the first row of this array. Write a statement that assigns 18 to the last column of the last row of this array.

values is a two-dimensional array of floats with 10 rows and 20 columns. Write code that sums all the elements in the array and stores the sum in the variable total.

An application uses a two-dimensional array defined as follows. int days[29][5]; Write code that sums each row in the array and displays the results. Write code that sums each column in the array and displays the results.

T F An arrays size declarator can be either a literal, a named constant, or a variable.

T F To calculate the amount of memory used by an array, multiply the number of elements by the number of bytes each element uses.

T F The individual elements of an array are accessed and indexed by unique numbers.

T F The first element in an array is accessed by the subscript 1.

T F The subscript of the last element in a single-dimensional array is one less than the total number of elements in the array.

T F The contents of an array element cannot be displayed with cout .

T F Subscript numbers may be stored in variables.

T F You can write programs that use invalid subscripts for an array.

T F Arrays cannot be initialized when they are defined. A loop or other means must be used.

T F The values in an initialization list are stored in the array in the order they appear in the list.

T F C++ allows you to partially initialize an array.

T F If an array is partially initialized, the uninitialized elements will contain garbage.

T F If you leave an element uninitialized, you do not have to leave all the ones that follow it uninitialized.

T F If you leave out the size declarator of an array definition, you do not have to include an initialization list.

T F The uninitialized elements of a string array will automatically be set to the value "0" .

T F You cannot use the assignment operator to copy one arrays contents to another in a single statement.

T F When an array name is used without brackets and a subscript, it is seen as the value of the first element in the array.

T F To pass an array to a function, pass the name of the array.

T F When defining a parameter variable to hold a single-dimensional array argument, you do not have to include the size declarator.

T F When an array is passed to a function, the function has access to the original array.

T F A two-dimensional array is like several identical arrays put together.

T F Its best to think of two-dimensional arrays as having rows and columns.

T F The first size declarator (in the declaration of a two-dimensional array) represents the number of columns. The second size definition represents the number of rows.

T F Two-dimensional arrays may be passed to functions, but the row size must be specified in the definition of the parameter variable.

T F C++ allows you to create arrays with three or more dimensions.

T F A vector is an associative container.

T F To use a vector, you must include the vector header file.

T F vectors can report the number of elements they contain.

T F You can use the [] operator to insert a value into a vector that has no elements.

T F If you add a value to a vector that is already full, the vector will automatically increase its size to accommodate the new value.

Each of the following definitions and program segments has errors. Locate as many as you can.int size; double values[size];

Each of the following definitions and program segments has errors. Locate as many as you can.int collection[-20];

Each of the following definitions and program segments has errors. Locate as many as you can.int table[10]; for (int x = 0; x < 20; x++) { cout << "Enter the next value: "; cin >> table[x]; }

Each of the following definitions and program segments has errors. Locate as many as you can.int hours[3] = 8, 12, 16;

Each of the following definitions and program segments has errors. Locate as many as you can.int numbers[8] = {1, 2, , 4, , 5};

Each of the following definitions and program segments has errors. Locate as many as you can.float ratings[];

Each of the following definitions and program segments has errors. Locate as many as you can.char greeting[] = {'H', 'e', 'l', 'l', 'o'}; cout << greeting;

Each of the following definitions and program segments has errors. Locate as many as you can.int array1[4], array2[4] = {3, 6, 9, 12}; array1 = array2;

Each of the following definitions and program segments has errors. Locate as many as you can.void showValues(int nums) { for (int count = 0; count < 8; count++) cout << nums[count]; }

Each of the following definitions and program segments has errors. Locate as many as you can.void showValues(int nums[4][]) { for (rows = 0; rows < 4; rows++) for (cols = 0; cols < 5; cols++) cout << nums[rows][cols]; }

Each of the following definitions and program segments has errors. Locate as many as you can.vector numbers = { 1, 2, 3, 4 };