C# Out Parameter

C# provides out keyword to pass arguments as out-type. It is like reference-type, except that it does not require variable to initialize before passing. We must use out keyword to pass argument as out-type. It is useful when we want a function to return multiple values.

C# Out Parameter Example 1

Output:

Value before passing out variable 50
Value after receiving the out variable 25

The following example demonstrates that how a function can return multiple values.

C# Out Parameter Example 2

Output:

Value before passing
 val1 = 50
 val2 = 100
Value after passing
 val1 = 25
 val2 = 25