CHAP 3 INTRO TO C++

Question 1

The % operator may appear ONLY with [ ] values.

Answer 1

integer

Question 2

positive or negative integers with or without a sign. (commas are not allowed)

Answer 2

int (integer)

Question 3

unlike the output statement which may contain constants, variables or more complicated expressions, the only items that may be specified in an input statement are the names of one or more variables.

true or false

Answer 3

true

Question 4

C++ allows operators to be combined for a [ ] . Many environments discourage the use of operators in this way as it can make a program more difficult to read and understand.

Answer 4

short-hand notation
combined operators

Question 5

main function

Answer 5

{
variable declarations
executable statements
}

Question 6

general form of cout

Answer 6

cout&laquo_space;ExprOrString &laquo_space;ExprOrString …

Question 7

true of false

Answer 7

bool

Question 8

use the current value of n in the expression and when finished, increment/decrement n.

Answer 8

N++
N–

POSTfix

Question 9

types of identifiers

Answer 9

Letters (LOWERCASE/UPPERCASE)
DIGITS (0-9)
THE UNDERSCORE ( _ ) CHARACTER

Question 10

the process of implementing the algorithm using a language the computer can understand

Answer 10

computer programming

Question 11

causes the cursor to move to the beginning of the next line. This is one way to get blank lines in your output.

Answer 11

𝑒𝑛𝑑𝑙 (end line)

Question 12

is a predefined variable in C++ that indicates you are going to input a stream of characters from an input device ([ ] is associated with the standard input device which is the keyboard).

Answer 12

cin&raquo_space;

Question 13

information of the program needs (a list of all necessary header files used in the program).

Answer 13

preprossesors directives

Question 14

A set of valid data values along with the operations that may be performed on those values.

Answer 14

data types

Question 15

positive or negative numbers containing an integer part and a fractional part with a decimal point in between.

Answer 15

float/double

Question 16

{
//Executable Statements
⋮
return 0;
}

Answer 16

main function

Question 17

where can you find the values of uppercase and lowercase letters and numbers?

Answer 17

ASCII Table

Question 18

a set of characters used to hold data containing more than one character enclosed in double quotes.

Answer 18

string

Question 19

true or false

you can have an identifier like this :
123ABc

Answer 19

false

Question 20

When expressions are evaluated, they are evaluated left to right according to the following precedence rules:

Answer 20

( )
* / %
+ -

Question 21

assignment statement:

Answer 21

syntax: variable = expression;

Question 22

int main ( )

Answer 22

heading

Question 23

is a set of special words, symbols and rules for constructing a program. There are many programming languages each with their own set of rules.

Answer 23

programming language

Question 24

increment/decrement the contents of n and use the new value of n in the expression.

Answer 24

++N
–N

PREfix

Question 25

[ ] expressions can be made up of constants, variables, operators and parentheses.

Answer 25

Arithmetic

Question 26

+= −= ∗= /= %= &= |= ^=

Answer 26

combined operators

Question 27

#include using namespace std;

Answer 27

preprossesor directives

Question 28

GENERAL FORM OF CIN:

Answer 28

cin >> variable1 >> variable2 … ;

Question 29

is a predefined variable in C++ that indicates you are going to output a stream of characters to an output device.

Answer 29

cout <<

Question 30

int main ( ) - functions by definition return a value

Answer 30

heading

Question 31

C++ is [ ], In other words, uppercase and lowercase letters are considered to be different. true or false

Answer 31

case-sensitive true

Question 32

one alphanumeric character enclosed in single quotes.

Answer 32

char

Question 33

are used in C++ to name things.

Answer 33

Identifiers