# C# Literals

Literals are value constants assigned to variables in a program. In C#, there are 6 types of literals are exists.

• Integer Literals
• Real Literals
• Boolean Literals
• Single Character Literals
• String Literals
• Backslash Character Literals
• ## Integer Literals:

An Integer Literals refers to a sequence of digits. There are two types of integer namely:

• Decimal Integers
• Hexamdecimal Integers
• ### Decimal Integers:

Decimal Integers cosists of a set of digits, o to 9 preceded by an optional minus sign.
Example:

```123, -321, 654321
```

### Hexamdecimal Integers:

Hexamdecimal Integers refers to a sequence of digits preceded by 0x or 0X is considered as a Hexamdecimal Integers. It may also include alphabets A, B, C, D, E, F or a, b, c, d, e, f.

• A or a represents the number 10
• B or b represents the number 11
• C or c represents the number 12
• D or d represents the number 13
• E or e represents the number 14
• F or f represents the number 15
• Example:

```0x, 0X2, 0X9F, 0Xbcd
```

### Real Literals:

It is represented by numbers containing fractional parts that is called Real Literals.

Example:

```0.50, 3.14, -0.15
```

A real literal may also be expressed in exponential notation.
Example:
```8.16e47, 0.5e+4, -1.5e-1
```

### Boolean Literals:

There are two types of Boolean literals and that are :

• True
• False
• ### Single Character Literals:

A single character literal contains a single character enclosed within a pair of single quote marks.

Example:

```'5' 'X' ';'''   // The character constant '5' isn't the same as the number 5. The last constant in the '' is a blank space.
```

### String Literals:

A string literal is a sequence of characters enclosed between double quotes. The characters may be alphabets, digits, special characters and blank spaces.

Example:

```"Hello" "Well Done" "X"
```

### Backslash Character Literals:

In C#, there are supports some special backslash character constants that are used in output methods.

 Symbol Description '\a' Alert '\b' Back Space '\f' Form Feed '\n' New Line '\r' Carriage Return '\t' Horizontal Tab '\v' Vertical Tab '\'' Single Quote '\"' Double Quote '\\' Backslash '\0' Null