M3S2 Part 1

Question 1

elements of c++

Answer 1

1. character set
2. keywords
3. data types
4. Identifiers
5. Operators

Question 2

Characters that can be used in a program are:

Answer 2

• Lowercase letters (a-z)
• Uppercase letters (A-Z)
• Digits (0-9)
• Special Characters (+,-,*,/,=,(,),{,}……)

Question 3

reserved words with special meaning in C++.

Answer 3

keywords

Question 4

must not be used as constant or

variable or any other identifier names.

Answer 4

keywords

Question 5

are case sensitive and should be

in lowercase.

Answer 5

keywords

Question 6

Other names which you should not use as variables are the

names of

Answer 6

data types such as int, char, float.

Question 7

a name used to identify a variable, function, class,

module, or any other user-defined item.

Answer 7

identifier

Question 8

starts with a letter A to Z or a to z or an underscore (_)

followed by zero or more letters, underscores, and digits (0 to 9)

Answer 8

identifier

Question 9

does c++ allow punctuation characters within identifiers?

Answer 9

no

Question 10

also known as user-defined identifier

Answer 10

variable

Question 11

It is a data
storage location that has a value, which can change during
program execution.

Answer 11

variable

Question 12

All variables in C++ must be declared prior to their use

Answer 12

true

Question 13

Characters a to z and A to Z

(NOTE: upper case and lower case are not distinct) in variables

Answer 13

false

Question 14

first character of a variable must be a

Answer 14

letter

Question 15

only what may follow the initial letter

Answer 15

letters, digits or underscores

Question 16

what are not allowed in variables

Answer 16

Blank spaces and special characters

Question 17

used to

tell the variables the type of data it can store.

Answer 17

data types

Question 18

All variables use this during declaration to restrict the type of
data to be stored.

Answer 18

data-type

Question 19

requires different amount of memory.

Answer 19

Every data type

Question 20

are built-in or predefined data types and can

be used directly by the user to declare variables.

Answer 20

Primitive Data Types