# Constant in c language and constant definitions | constant in computer

## Constant in c language and constant

In this post you will know what is

**Constant**.,**Constant in c language**and constant definitions | constant in computer,**string,real,numeric**and etc.Constant in c language and constant definitions |

### Constant definitions

Constant is in refer to fixed value that do
not change during the execution of the program.

**There are two types of constant**

- Numeric constant
- Non numeric constant

#### Numeric constant

There are two types of numeric constant

- Integer constant
- Real constant

### Integer constant

#### Decimal integer constant

There are a sequence of digit from 0 to 9
without fraction part. It may be negative, positive or zero.

Examples

12,499. 0, , -15,44

#### Octal integer constant

There are sequence of digit from 0 to 7
without fraction part. It may be negative, positive or zero. It must include 0 before the number.

**Example**

04,244 , -0244

**Read this:**#### Hexadecimal integer constant

There are sequence digit from 0 to 9 and A to F without
fraction value. It may be negative, positive Or O
. It must include X.

**Example**

0x244, -0xA44

## Real constant

There are number with fraction part. This
is also non age floating point constant.

**Example**

12.44

### Non numeric constant

There are two types of non numeric constant

- Character constant
- String constant

#### Character constant

There are enclosed in single quote. This
constant single character or digit.

**Example**

**‘9’ 'n'**

**Note:-**character have integer value . known as ASCII

(American standard code for information interchange)

Read this:-

Read this:-

#### String constant

They are sequence of character digit aur any symbol
closed double quote.

**Example**

“ Hello” “ &ab”

#### Variable

A variable is named location in memory that is used to
hold value that can be modified in the program by the instructions.

**Example**

Int a,b

Float c, d

So in today's post you have learned what are the constants and what are the types of

So in today's post you have learned what are the constants and what are the types of

**constants**, what is the value of**ASCII**you have learned all this in today's post, I hope you liked our article if you If you get help, then you must share this with your friend.
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