Chapter 2

Question 1

Arithmetic expression

Answer 1

An expression constructed using arithmetic operators and numbers

Question 2

Assignment operator

Answer 2

=; assigns whatever is on the right side to the variable on the left side

Question 3

Associativity

Answer 3

the associativity of arithmetic operators is said to be from left to right

Question 4

Binary operator

Answer 4

an operator that has two operands

Question 5

Cast operator

Answer 5

also known as type conversion or type casting - used to explicitly convert one data type to another data type

Question 6

Character arithmetic

Answer 6

arithmetic operation on char data

Question 7

Collating sequence

Answer 7

a predefined ordering for the characters in a set

Question 8

Compound assignment statement

Answer 8

statements that are used to write simple assignment statements in a more concise notation

Question 9

Computer program

Answer 9

A sequence of statements whose objective is to accomplish a task

Question 10

Data type

Answer 10

A set of values together with a set of operations

Question 11

Declaration statements

Answer 11

Statements that are used to declare things, such as variables

Question 12

Decrement operator

Answer 12

–; decreases the value of a variable by 1

Question 13

Double precision

Answer 13

Values of type double

Question 14

Enumeration

Answer 14

A user-defined data type

Question 15

Executable statements

Answer 15

statements that perform calculations, manipulate data, create output, accept input, and so on

Question 16

Floating-point

Answer 16

A data type that deals with decimal numbers

Question 17

Floating-point expression

Answer 17

An expression in which all operands in the expression are floating-point numbers

Question 18

Floating-point notation

Answer 18

A form of scientific notation used to represent real numbers

Question 19

Function

Answer 19

A collection of statements; when activated, or executed, it accomplishes something

Question 20

Identifier

Answer 20

A C++ identifier consists of letters, digits, and the underscore character (_); it must begin with a letter or underscore

Question 21

Implicit type coercion

Answer 21

When a value of one data type is automatically changed to another data type

Question 22

Increment operator

Answer 22

++; increases the value of a variable by 1

Question 23

Initialized

Answer 23

The first time a value is placed in the variable

Question 24

Input statement

Answer 24

a statement that places data into variables using cin and&raquo_space;

Question 25

Integral

Answer 25

a data type that deals with integers, or numbers, without a decimal part

Question 26

Integral expression

Answer 26

an expression in which all operands are integers

Question 27

Keyword

Answer 27

a reserved word

Question 28

Mixed expression

Answer 28

an expression that has operands of different data types

Question 29

Named constant

Answer 29

a memory location whose content is not allowed to change during program execution

Question 30

Null string

Answer 30

a string containing no characters

Question 31

Operands

Answer 31

numbers appearing in an arithmetic expression

Question 32

Output statement

Answer 32

an output on the standard output device via cout and

Question 33

Post-decrement

Answer 33

has the syntax variable--

Question 34

Post-increment

Answer 34

has the syntax variable++

Question 35

Pre-decrement

Answer 35

has the syntax ?-variable

Question 36

pre-increment

Answer 36

has the syntax ++variable

Question 37

precision

Answer 37

the maximum number of significant digits

Question 38

predefined function

Answer 38

a function that is already written and provided as part of the system

Question 39

preprocessor

Answer 39

a program that carries out preprocessor directives

Question 40

programming

Answer 40

the process of planning and creating a program

Question 41

programming language

Answer 41

a set of rules, symbols, and special words

Question 42

prompt lines

Answer 42

executable statements that inform the user what to do

Question 43

reserved words

Answer 43

also known as keywords - word symbols in a programming language that cannot be redefined in any program

Question 44

run-together word

Answer 44

an identifier that is composed of two or more words that are combined without caps or underscores

Question 45

self-documenting identifiers

Answer 45

identifiers that describe the purpose of the identifier through the name

Question 46

semantic rules

Answer 46

rules that determine the meaning of the instructions

Question 47

semantics

Answer 47

a set of rules that gives meaning to a language

Question 48

simple assignment statement

Answer 48

a statement that uses only the assignment operator to assign values to the variable on the left side of the operator

Question 49

simple data type

Answer 49

the variable or named constant of that type can store only one value at a time

Question 50

single precision

Answer 50

values of type float

Question 51

source code

Answer 51

consists of the preprocessor directives and program statements

Question 52

source code file

Answer 52

a file containing source code

Question 53

statement terminator

Answer 53

the semicolon

Question 54

stream extraction operator

Answer 54

>>; takes information from a stream and puts it into a variable

Question 55

stream insertion operator

Question 56

string

Answer 56

a sequence of zero or more characters

Question 57

syntax rules

Answer 57

rules that describe which statements are legal, or accepted by the programming language, and which are not legal

Question 58

token

Answer 58

the smallest individual unit of a program written in any language

Question 59

unary operator

Answer 59

an operator that has only one operand

Question 60

variable

Answer 60

a memory location whose content may change during program execution

Question 61

walk-through

Answer 61

the process of tracing values through a sequence