Deck 3: Assignment, Formatting, and Interactive

Question 1

When the ++ operator appears before a variable it s called a(n) ____ increment operator.

A) suffix
B) infix
C) postfix
D) prefix

Answer 1

D

Question 2

To control the format of numbers displayed by cout , you can include field width ____ in an output stream.

A) separators
B) manipulators
C) dividers
D) escape sequences

Answer 2

B

Question 3

Using a mathematical library function without including the preprocessor statement #include is a common programming error in C++.

Answer 3

True

Question 4

In C++, all functions, by definition, can directly return at most one value.

Question 5

Numbers sent to cout are normally displayed left-justified in the display field.

Question 6

Program execution begins with the first statement in the body of the main() function.

Question 7

Because of ____, the value assigned to the variable on the left side of the assignment operator is forced into the data type of the variable to which it s assigned.

A) right-to-left associability
B) left-to-right associability
C) coercion
D) operator precedence

Question 8

In C++, the ____ symbol is called the assignment operator.

A) ->
B) >>
C) ==
D) =

Question 9

The stream manipulator ____ displays Boolean values as true and false rather than 1 and 0 .

A) booltext
B) bool
C) boolalpha
D) showbool

Question 10

The stream manipulator ____ sets the floating-point precision to n places.

A) setprecision(n)
B) setw(n)
C) setfill( x )
D) showbase

Question 11

A common programming error in C++ consists of separating all variables passed to cin with an extraction symbol, >> .

Question 12

Assignment statements can be used to perform arithmetic computations.

Question 13

The display of integer values in one of the three possible number systems (decimal, octal, and hexadecimal) doesn t affect how the number is stored in a computer.

Question 14

The ostream class method setf(ios::fixed) is equivalent to the stream manipulator setiosflags(fixed) .

Question 15

The stream manipulator lowercase displays hexadecimal digits and the exponent in scientific notation in lowercase.

Question 16

A(n) ____ statement is the most basic C++ statement for assigning values to variables and performing computations.

A) initialization
B) assignment
C) declaration
D) arithmetic

Question 17

In addition to outputting integers in decimal notation, the oct and hex manipulators are used for conversions to octal and hexadecimal.

Question 18

In C++, the expression sum = sum + 10 can be written as ____.

A) sum =+ 10
B) +sum = 10
C) sum += 10
D) sum = 10+

Question 19

A(n) ____ is any combination of constants, variables, and function calls that can be evaluated to yield a result.

A) expression
B) identifier
C) class
D) object

Question 20

A(n) ____ can have a value assigned to it.

A) lvalue
B) rvalue
C) uvalue
D) dvalue

Question 21

In C++, the mathematical function ____ calculates a number s square root.

A) square()
B) sqrt()
C) squareRoot()
D) sqroot()

Question 22

In C++, accessing mathematical functions in a program requires including the mathematical header file ____.

A) number
B) cnumber
C) cmath
D) math

Question 23

The term ____ refers to an item, such as a variable or argument, that sets a condition usually considered active or nonactive.

A) expression
B) variable
C) flag
D) constant

Question 24

Another name for a manipulator uses format flags is a ____ manipulator.

A) complex
B) parameterized
C) format
D) customizable

Question 25

The ____ declaration qualifier specifies that the declared identifier is read-only after it s initialized.

A) fixed
B) const
C) fix
D) unchanged

Question 26

This type of statement: sum = sum + 10; is called a(n) ____________________ statement.

Question 27

A(n) ____ expression consists of operators and constants only.

A) constant
B) declaration
C) initialization
D) arithmetic

Question 28

In this statement: totalWeight = factor * weight; the arithmetic expression factor * weight is evaluated first to yield a number, which is then stored in the variable ____________________.

Question 29

In C++, the default precision is set to ____ decimal places.

A) five
B) six
C) seven
D) eight

Question 30

In C++, the = symbol is called the ____________________ operator.

Question 31

The ostream class method setf(ios::flush) is equivalent to the stream manipulator ____.

A) left
B) setiosflag(ios::flush)
C) right
D) endl

Question 32

Identifiers created with const are commonly referred to as symbolic constants or ____ constants.

A) general
B) global
C) named
D) valid

Question 33

The operator used to force converting a value to another type is the ____ operator.

A) cast
B) logical
C) binary
D) single

Question 34

The ostream class method precision(n) is equivalent to the stream manipulator ____.

A) precision()
B) setfill()
C) setprecision()
D) setw()

Question 35

To alter the default justification for a stream of data, you use the ____ manipulator.

A) setiosflags
B) setw
C) setpos
D) setjust

Question 36

The number 023 is a(n) ____ number in C++.

A) octal
B) hexadecimal
C) decimal
D) binary

Question 37

When a manipulator requiring an argument is used, the ____ header file must be included as part of the program.

A) istream
B) ostream
C) iostream
D) iomanip

Question 38

The simplest expression in C++ is a single ____________________.

Question 39

A variable can store only ____________________ value(s) at a time.

Question 40

The ____ statement is used to enter data in a program while it s running.

A) input
B) data
C) cout
D) cin

Question 41

A parameterized manipulator takes ____________________ flags as input.

Question 42

In this statement: int (a * b); , int is a(n) ____________________ operator.

Question 43

In C++, the assignment operator has a(n) ____________________ precedence than any other arithmetic operator.

Question 44

To alter the default justification for a stream of data, you use the ____________________ manipulator.

Question 45

Function ____________________ permits using the same function name for different arguments of different data types.

Question 46

In C++, arguments of all trigonometric functions ( sin() , cos() , and so forth) must be in ____________________.

Question 47

The ____________________ statement puts the computer in a temporary pause (or wait) state while the user types a value.

Question 48

In C++, a variable or symbolic constant must be ____________________ before it has been used.

Question 49

In C++, the cmath function named ____________________ is used to raise a number to a power.

Question 50

Programs that detect and respond effectively to unexpected user input are formally referred to as ____________________ programs.

Question 51

If n = 25 and this statement is executed: n--; , then the new value of n is ____________________.

Question 52

The ____________________ manipulator must be included for each occurrence of a number inserted in the data stream sent to cout .