What is the default value for bool in C#?
false
In this article
| Type | Default value |
|---|---|
| bool | false |
| char | ‘\0’ (U+0000) |
| enum | The value produced by the expression (E)0 , where E is the enum identifier. |
| struct | The value produced by setting all value-type fields to their default values and all reference-type fields to null . |
What is the default value of a bool value variable?
null
The default value for a Boolean (object) is null . The default value for a boolean (primitive) is false .
What is the default DateTime value in C#?
January 1, 0001
The default and the lowest value of a DateTime object is January 1, 0001 00:00:00 (midnight). The maximum value can be December 31, 9999 11:59:59 P.M.
Does bool default false C#?
For bool, the default value is false.
What is default keyword in C#?
The default keyword can be used in three ways: To specify the default label in the switch statement. As the default operator or literal to produce the default value of a type. As the default type constraint on a generic method override or explicit interface implementation.
Is bool false by default C#?
The default value of the bool type is false .
What is default long value?
float data type is a single-precision 32-bit IEEE 754 floating point. Wrapper Class: Float Float is mainly used to save memory in large arrays of floating point numbers. Default value: 0.0f. long: The long data type is a 64-bit two’s complement integer.
What is the default value for string?
Default Values
| Data Type | Default Value (for fields) |
|---|---|
| float | 0.0f |
| double | 0.0d |
| char | ” |
| String (or any object) | null |
What is DateTime now in C#?
Gets a DateTime object that is set to the current date and time on this computer, expressed as the local time. public: static property DateTime Now { DateTime get(); }; C# Copy.
What is return default in C#?
The default keyword returns the “default” or “empty” value for a variable of the requested type. For all reference types (defined with class , delegate , etc), this is null . For value types (defined with struct , enum , etc) it’s an all-zeroes value (for example, int 0 , DateTime 0001-01-01 00:00:00 , etc).
Is default in C#?
The default literal expression produces the same value as the default(T) expression where T is the inferred type. You can use the default literal in any of the following cases: In the assignment or initialization of a variable. In the declaration of the default value for an optional method parameter.
Is C# a keyword?
The C# language has the is keyword which allows you to check if a variable is of a given type. The as keyword is a defensive cast, which means that a cast will be attempted and if the object is not able to be casted to the supplied type null is returned instead.
