Class
Initialisation
The common language runtime initializes all fields to their default values before running the constructor.
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 |
0.0M |
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 a |
uint |
0 |
ulong |
0 |
ushort |
0 |