The following table lists the C# built-in types, along with common aliases and default values:
| C# type | Alias(es) | Range | Default Value |
|---|---|---|---|
| bool | Boolean | true or false |
false |
| int8 | sbyte | -128 to 127 |
0 |
| uint8 | byte | 0 to 255 |
0 |
| int16 | short | -32768 to 32767 |
0 |
| uint16 | ushort | 0 to 65535 |
0 |
| float32 | float, single | precision up to seven digits | 0 |
| int32 | int | -2147483648 to 2147483647 |
0 |
| uint32 | uint | 0 to 4294967295 |
0 |
| float64 | double | precision up to fifteen digits | 0 |
| int64 | long | -9223372036854775808 to 9223372036854775807 |
0 |
| uint64 | ulong | 0 to 18446744073709551615 |
0 |
| string | a sequence of zero or more Unicode characters | null |
For more information about any of these built-in types, it is recommended to view Microsoft's "Built-in types (C# reference)" documentation page.