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Aliases of built-in types

Built-In Types Table

The following table shows the keywords for built-in C# types, which are aliases of predefined types in the System namespaces.

C# Type	.NET Framework Type
bool	System.Boolean
byte	System.Byte
sbyte	System.SByte
char	System.Char
decimal	System.Decimal
double	System.Double
float	System.Single
int	System.Int32
uint	System.UInt32
long	System.Int64
ulong	System.UInt64
object	System.Object
short	System.Int16
ushort	System.UInt16
string	System.String

The C# type keywords and their aliases are interchangeable. For example, you can declare an integer variable by using either of the following declarations:

int number = 123;
System.Int32 number = 123;

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Topic Id: 1862

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