Null Coalescing Operator : Nullable « Data Type « C# / CSharp Tutorial

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C# / CSharp Tutorial » Data Type » Nullable

2.54.7.Null Coalescing Operator

using System;



class MainClass

{

   static void Main()

   {

      int? nullableInteger = null;

      Console.WriteLine("nullableInteger: {0}", nullableInteger ?? -1);



      nullableInteger = 10;

      Console.WriteLine("nullableInteger: {0}", nullableInteger ?? -1);

   }

}

nullableInteger: -1
nullableInteger: 10

2.54.Nullable
	2.54.1.	null unification
	2.54.2.	Nullable long
	2.54.3.	Nullable Struct
	2.54.4.	Nullable Types Access: Explicitly use properties
	2.54.5.	Nullable Types Access: shortcut syntax
	2.54.6.	Nullable Types Assignment
	2.54.7.	Null Coalescing Operator
	2.54.8.	A nullable type
	2.54.9.	Use nullable objects in expressions: result contains null, because one operand is null
	2.54.10.	Assign value to nullable int
	2.54.11.	Using ??

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