default-values-table.md

title	Default values table (C# Reference)
descripton	Learn what are the default values of value types returned by the default constructors.
ms.date	07/20/2015
ms.prod	.net
ms.technology	devlang-csharp
ms.topic	article
helpviewer_keywords	constructors [C#], return values keywords [C#], new default constructor [C#] defaults [C#] value types [C#], initializing variables [C#], value types constructors [C#], default constructor types [C#], default constructor return values
ms.assetid	4af2c1df-9e3a-48c1-83ac-b192986fc5bc
caps.latest.revision	12
author	BillWagner
ms.author	wiwagn

Default values table (C# Reference)

The following table shows the default values of value types returned by the default constructors. Default constructors are invoked by using the new operator, as follows:

int myInt = new int();

The preceding statement has the same effect as the following statement:

int myInt = 0;

Remember that using uninitialized variables in C# is not allowed.

Value type	Default value
bool	false
byte	0
char	'\0'
decimal	0M
double	0.0D
enum	The value produced by the expression (E)0, where E is the enum identifier.
float	0.0F
int	0
long	0L
sbyte	0
short	0
struct	The value produced by setting all value-type fields to their default values and all reference-type fields to null.
uint	0
ulong	0
ushort	0

See also

C# Reference
C# Programming Guide
Value Types Table
Value Types
Built-In Types Table
Reference Tables for Types