C# - Data Types

C# is a strongly-typed language which means we have to declare the type of a variable that indicates the kind of values it is going to store.

In C# the Data Types are categorized into the following types.

Value Types

Value type variables can be assigned a value directly.

The following table lists the available value types in C#

Type	Represents	Range	Default Value
bool	Boolean value	True or False	False
byte	8-bit unsigned integer	0 to 255	0
char	16-bit Unicode character	U+0000 to U+FFFF	\0
decimal	128-bit precise decimal values with 28-29 significant digits	(-7.9 x 1028 to 7.9 x 1028) / 100 to 28	0.0M
double	64-bit double-precision floating point type	(+/-)5.0 x 10-324 to (+/-)1.7 x 10308	0.0D
float	32-bit single-precision floating point type	-3.4 x 1038 to + 3.4 x 1038	0.0F
int	32-bit signed integer type	-2,147,483,648 to 2,147,483,647	0
long	64-bit signed integer type	-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807	0L
sbyte	8-bit signed integer type	-128 to 127	0
short	16-bit signed integer type	-32,768 to 32,767	0
uint	32-bit unsigned integer type	0 to 4,294,967,295	0
ulong	64-bit unsigned integer type	0 to 18,446,744,073,709,551,615
ushort	16-bit unsigned integer type	0 to 65,535	0

These types store references to the actual data.

object: The base type of all other types.

string:Represents a sequence of characters.

Allow value types to have a value of null.