Ch 2

Question 1

source code

Answer 1

• code written in high level language
• consists of preprocessor directives and program statements
• source program

Question 2

preprocessor

Answer 2

• program that carries out preprocessor directives

- program that processes statements in a C++ program that begin with a #

Question 3

keyword

Answer 3

reserved word

Question 4

walk-through

Answer 4

the process of tracing values through a sequence

Question 5

variable

Answer 5

memory location whose content may change during program execution

Question 6

unary operator

Answer 6

operator with only one operand

Question 7

token

Answer 7

smaller individual unit of a program written in any language

Question 8

syntax rules

Answer 8

rules that describe which statements are legal/accepted by the programming language as well as what is not legal

Question 9

string

Answer 9

sequence of 0 or more characters

Question 10

stream insertion operator

Answer 10

”

Question 11

stream extractor operator

Answer 11

”»”

takes information out of the stream and inputs it into a variable

Question 12

statement terminator

Answer 12

semi colon

Question 13

source code file (source file)

Answer 13

file containing the source code

Question 14

single precision

Answer 14

values of the type “float”

Question 15

simple data type

Answer 15

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

Question 16

simple assignment statement

Answer 16

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

Question 17

semantics

Answer 17

set of rules that give meaning to a language

Question 18

semantic rules

Answer 18

rules that determine the meaning of the instructions

Question 19

self-documenting identifiers

Answer 19

identifiers that describe the purpose of the identifier through the name

Question 20

run-together word

Answer 20

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

Question 21

reserved words

Answer 21

keywords

- word symbols in a programming language that cannot be changed in any program

Question 22

prompt lines

Answer 22

executable statements that inform the user of what to do

Question 23

programming language

Answer 23

set of rules, symbols and special words

Question 24

programming

Answer 24

process of planning and creating a program

Question 25

pre-increment

Answer 25

syntax “++ variable”

Question 26

predefined (standard) function

Answer 26

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

Question 27

pre-decriment

Answer 27

syntax “– variable”

Question 28

precision

Answer 28

max number of significant digits

Question 29

post- increment

Answer 29

syntax “variable ++”

Question 30

post decriment

Answer 30

syntax “variable –”

Question 31

output statement

Answer 31

output the standard output device via “cout” and “

Question 32

operands

Answer 32

numbers in an arithmetic expression

Question 33

null (empty) strings

Answer 33

string containing no characters

Question 34

named constant

Answer 34

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

Question 35

mixed expression

Answer 35

expression that contains operands with different data types

Question 36

integral expression

Answer 36

expression in which all operands are integers

Question 37

integral

Answer 37

data type that deals with integers or numbers without a decimal

Question 38

input (read) statement

Answer 38

statement that places data into variables via “cin” and “»”

Question 39

initialized

Answer 39

the 1st time a value is placed in a variable

Question 40

increment operator

Answer 40

++

- increases value of variable by 1

Question 41

implicit type correction

Answer 41

when value of one data type is automatically changed to another data type

Question 42

identifier

Answer 42

• C++ identifier consists of letters, digits, and the underscore character
• must begin with letter or underscore

Question 43

function (subprogram)

Answer 43

a collection of statements that when activated/executed it accomplishes something

Question 44

floating-point notation

Answer 44

form of scientific notation used to represent real numbers

Question 45

floating-point (decimal) expression

Answer 45

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

Question 46

floating point

Answer 46

data type that holds decimal numbers

Question 47

executable statements

Answer 47

statements that perform calculations, manipulate data, create output, accept input, etc

Question 48

enumeration

Answer 48

user defined data type

Question 49

double precision

Answer 49

values of the type “double”

Question 50

decrement operator

Answer 50

”–” decreases the value of a variable by 1

Question 51

declaration statements

Answer 51

statements used to declare things like variables

Question 52

data type

Answer 52

set of values together with a set of operations

Question 53

computer program

Answer 53

sequence of statements whose objective is to accomplish a task

Question 54

compound assignment statement

Answer 54

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

Question 55

collating sequence

Answer 55

predefined ordering for the characters in a set

Question 56

character arithmetic

Answer 56

arithmetic operation on “char” data

Question 57

cast operatior

Answer 57

• type conversion, type casting

- used to explicitly convert one data type to another data type

Question 58

binary operator

Answer 58

operator that has two operands

Question 59

associativity

Answer 59

associativity of arithmetic operations said to be from left to right

Question 60

assignment operator

Answer 60

”=”

- assigns whatever is on the right side of the variable on the left side

Question 61

arithmetic expression

Answer 61

expression constructed using arithmetic operators and numbers