2

1

4

8

char

int

float

string

float is more accurate than double

float is for integers, double is for decimals

float is double-precision, double is single-precision

float is single-precision, double is double-precision

Enclosing a single character within double quotes

Using square brackets to represent the character

Using backticks to enclose the character

Enclosing a single character within single quotes

Constant

Identifier

operator

function

letter

number

special key

0

Variable declaration in C is the process of specifying the data type and name of a variable before it is used in the program.

Variable declaration in C is only required for functions

Variable declaration in C is not necessary

Variable declaration in C is the process of assigning a value to a variable

Variables that can be changed at any point in the program

Data types that are not supported in C programming

Functions that return different values each time they are called

Fixed values that cannot be altered during program execution.

Variable names in C should start with a number

Variable names in C can contain spaces

Variable names in C should follow the convention of starting with a letter or underscore, followed by letters, digits, or underscores. They should not be a keyword or contain special characters.

Variable names in C should be all uppercase

int number;

float rate;

int variable_count;

int $main;

2nd_year

student age

_count

int

To tell the compiler the name without allocating memory.

To allocate memory and optionally initialize the variable.

To list the keywords used in the program.

To define the special characters in the character set.

To create loops

To define functions

To manage memory allocation

To store data values

double a = 3.14.15;

char z = "A";

float y = '5.5';

int x = 10;