Data types that is commonly called as Primitives are predefined in C#. There are several data types in C#.
Primitives are nothing but data types in C# that is used to store specific types of data.
There are eight integer types of primitives.
| Type |
Primitive |
Description |
Range |
sbyte |
System.SByte |
8 bit |
-128 to 127 |
byte |
System.Byte |
8 bit |
0 - 255 |
ushort |
System.UInt16 |
16 bit unsigned |
0 to 65,535 |
short |
System.Int16 |
16 bit |
-32,768 to 32,767 |
int |
System.Int32 |
32 bit |
-2,147,483,648 to 2,147,483,647 |
uint |
System.UInt32 |
32 bit unsigned |
0 to 4,294,967,295 |
long |
System.Int64 |
64 bit |
-9,223,372,036,854,775,808 to 9,223,372,036,854,775,807 |
ulong |
System.UInt64 |
64 bit unsigned |
0 to 18,446,744,073,709,551,615 |
There are two floating-point types of primitives.
| Type |
Primitive |
Description |
Range |
float |
System.Single |
32 bit |
+/-1.5x10-45 to +/-3.4x10+38 precision of 7 digits |
double |
System.Double |
64 bit |
-1.79769313486232e308 to 1.79769313486232e308 |
There is one decimal type primitives.
| Type |
Primitive |
Description |
Range |
decimal |
System.Decimal |
128 bit |
+/-1.0x10-28 to +/-7.9x10+28 precision of 28-29 digits |
There is one boolean type of primitive.
| Type |
Primitive |
Description |
Range |
bool |
System.Boolean |
boolean |
true, false |
and there is two character type of primitives.
| Type |
Primitive |
Description |
Range |
char |
System.Char |
16 bit Unicode |
/u0000 - /uffff |
string |
System.String |
- |
immutable, specified length |
In order to achive better peformance in the application, we should select the data type judiciously considering its range.