Question 1

This manipulator forces cout to print digits in fixed-point notation:

Accepted Answer

A)  setprecision(2) 
B)  setw(2) 
C)  fixed 
D)  setfixed(2) 
E)  None of these 
A)  setprecision(2) 
B)  setw(2) 
C)  fixed 
D)  setfixed(2) 
E)  None of these

Question 2

__________ reads a line of input, including leading and embedded spaces, and stores it in a string object.

Accepted Answer

A)  cin.get 
B)  getline 
C)  cin.getline 
D)  get 
E)  None of these 
A)  cin.get 
B)  getline 
C)  cin.getline 
D)  get 
E)  None of these

Question 3

The fixed manipulator causes a number to be displayed in scientific notation.

Accepted Answer

A) True 
 B)False

Question 4

When a program uses the setw manipulator, the iosetwidth header file must be included in a preprocessor directive.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following must be included in any program that uses the cin object?

Accepted Answer

A)  compiler 
B)  the header file iostream 
C)  linker 
D)  brackets 
E)  None of these 
A)  compiler 
B)  the header file iostream 
C)  linker 
D)  brackets 
E)  None of these

Question 6

A debugging process where you, the programmer, pretend you are a computer and step through each statement while recording the value of each variable at each step is known as

Accepted Answer

A)  error checking 
B)  hand writing 
C)  hand tracing 
D)  error handling 
E)  None of these 
A)  error checking 
B)  hand writing 
C)  hand tracing 
D)  error handling 
E)  None of these

Question 7

What is the value of x after the following code executes?
Int x = 0;
Int y = 5;
Int z = 4;
X = x + y + z * 2;

Accepted Answer

A)  18 
B)  0 
C)  13 
D)  26 
E)  unknown 
A)  18 
B)  0 
C)  13 
D)  26 
E)  unknown

Question 8

If you want to know the length of the string that is stored in a string object, you can call the object's size member function.

Accepted Answer

A) True 
 B)False

Question 9

What will be displayed after the following statements execute?
int num1 = 5;
int num2 = 3;
cout << "The result is " << (num1 * num2 + 10) << endl;

Accepted Answer

A)  The result is 5 * 3 + 10 
B)  The result is (num1 * num2 + 10) 
C)  The result is 25 
D)  The result is 65 
E)  None of these 
A)  The result is 5 * 3 + 10 
B)  The result is (num1 * num2 + 10) 
C)  The result is 25 
D)  The result is 65 
E)  None of these

Question 10

Which of the following statements will pause the screen until the [Enter] key is pressed?

Accepted Answer

A)  cin; 
B)  cin.getline(); 
C)  cin.get(); 
D)  cin.ignore(); 
E)  cin.input(); 
A)  cin; 
B)  cin.getline(); 
C)  cin.get(); 
D)  cin.ignore(); 
E)  cin.input();

Question 11

When C++ is working with an operator, it strives to convert the operands to the same type.

Accepted Answer

A) True 
 B)False

Question 12

Which of the following will allow the user to input the values 15 and 20 and have them stored in variables named base and height, respectively?

Accepted Answer

A)  cin > base >> height; 
D)  cin base >> cin height; 
E)  None of these 
A)  cin > base >> height; 
D)  cin base >> cin height; 
E)  None of these

Question 13

Which of the following functions will return the value of x, rounded to the nearest whole number?

Accepted Answer

A)  abs(x) 
B)  fmod(x) 
C)  sqrt(x) 
D)  round(x) 
E)  whole(x) 
A)  abs(x) 
B)  fmod(x) 
C)  sqrt(x) 
D)  round(x) 
E)  whole(x)

Question 14

The cin << statement will stop reading input when it encounters a newline character.

Accepted Answer

A) True 
 B)False

Question 15

How many characters will the following statement read into the variable myString?
Cin >> setw(10) >> myString;

Accepted Answer

A)  9 
B)  10 
C)  11 
D)  however many characters are in myString 
E)  None of these 
A)  9 
B)  10 
C)  11 
D)  however many characters are in myString 
E)  None of these

Question 16

In the following statement, what will be executed first according to the order of precedence?
Result = 6 - 3 * 2 + 7 - 10 / 2;

Accepted Answer

A)  6 - 3 
B)  3 * 2 
C)  2 + 7 
D)  10 / 2 
E)  7 - 10 
A)  6 - 3 
B)  3 * 2 
C)  2 + 7 
D)  10 / 2 
E)  7 - 10

Question 17

The following statement will output $5.00 to the screen:
cout << setprecision(5) << dollars << endl;

Accepted Answer

A) True 
 B)False

Question 18

To use the rand()function, you must include the __________ header file?

Accepted Answer

A)  cstdlib 
B)  cstring 
C)  iostream 
D)  cmath 
E)  iomanip 
A)  cstdlib 
B)  cstring 
C)  iostream 
D)  cmath 
E)  iomanip

Question 19

Which line in the following program will cause a compiler error?
1 #include <iostream>
2 using namespace std;
3
4 int main()
5 {
6 $\quad$const int MY_VAL = 77;
7 $\quad$MY_VAL = 99;
8 $\quad$cout << MY_VAL << endl;
9 $\quad$return 0;
10 }

Accepted Answer

A)  line 6 
B)  line 7 
C)  line 8 
D)  line 9 
E)  there will be no compiler error 
A)  line 6 
B)  line 7 
C)  line 8 
D)  line 9 
E)  there will be no compiler error

Question 20

The __________ operator always follows the cin object, and the __________ operator follows the cout object.

Accepted Answer

A)  binary, unary 
B)  conditional, binary 
C)  >>, > 
E)  None of these 
A)  binary, unary 
B)  conditional, binary 
C)  >>, > 
E)  None of these

Exam 3: Expressions and Interactivity

This manipulator forces cout to print digits in fixed-point notation:

__________ reads a line of input, including leading and embedded spaces, and stores it in a string object.

The fixed manipulator causes a number to be displayed in scientific notation.

When a program uses the setw manipulator, the iosetwidth header file must be included in a preprocessor directive.

Which of the following must be included in any program that uses the cin object?

A debugging process where you, the programmer, pretend you are a computer and step through each statement while recording the value of each variable at each step is known as

What is the value of x after the following code executes? Int x = 0; Int y = 5; Int z = 4; X = x + y + z * 2;

If you want to know the length of the string that is stored in a string object, you can call the object's size member function.

What will be displayed after the following statements execute? int num1 = 5; int num2 = 3; cout << "The result is " << (num1 * num2 + 10) << endl;

Which of the following statements will pause the screen until the [Enter] key is pressed?

When C++ is working with an operator, it strives to convert the operands to the same type.

Which of the following will allow the user to input the values 15 and 20 and have them stored in variables named base and height, respectively?

Which of the following functions will return the value of x, rounded to the nearest whole number?

The cin << statement will stop reading input when it encounters a newline character.

How many characters will the following statement read into the variable myString? Cin >> setw(10) >> myString;

In the following statement, what will be executed first according to the order of precedence? Result = 6 - 3 * 2 + 7 - 10 / 2;

The following statement will output $5.00 to the screen: cout << setprecision(5) << dollars << endl;

To use the rand()function, you must include the __________ header file?

Which line in the following program will cause a compiler error? 1 #include <iostream> 2 using namespace std; 3 4 int main() 5 { 6 \quad const int MY_VAL = 77; 7 \quad MY_VAL = 99; 8 \quad cout << MY_VAL << endl; 9 \quad return 0; 10 }

The __________ operator always follows the cin object, and the __________ operator follows the cout object.

Introduction to Computers and Programming

Introduction to C

Making Decisions

Loops and Files

Functions

Arrays and Vectors

Searching and Sorting Arrays

Pointers

Characters, C-Strings, and More About the String Class

Structured Data

Advanced File Operations

Introduction to Classes

More About Classes

Inheritance, Polymorphism, and Virtual Functions

Exceptions and Templates

The Standard Template Library

Linked Lists

Stacks and Queues

Recursion

Binary Trees

Filters

Which line in the following program will cause a compiler error? 1 #include <iostream> 2 using namespace std; 3 4 int main() 5 { 6 $\quad$ const int MY_VAL = 77; 7 $\quad$ MY_VAL = 99; 8 $\quad$ cout << MY_VAL << endl; 9 $\quad$ return 0; 10 }

The operator always follows the cin object, and the operator follows the cout object.