Use 'out' keyword (no need to assign because it is an out) : out « Language Basics « C# / CSharp Tutorial

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C# / CSharp Tutorial » Language Basics » out

1.12.1.Use 'out' keyword (no need to assign because it is an out)

An out parameter is used to pass a value out of a method.
It is not necessary to give the variable used as an out parameter an initial value.
An out parameter is always considered unassigned.
The method must assign the parameter a value prior to the method's termination.

using System;



class MainClass

{

  public static void Add(int x,int y, out int ans)

  {

    ans = x + y;

  }



  public static void Main() 

  {

    

    Console.WriteLine("Adding 2 ints using out keyword");

    int ans;

    Add(90, 90, out ans);

    Console.WriteLine("90 + 90 = {0}\n", ans);



  }

}

Adding 2 ints using out keyword
90 + 90 = 180

1.12.out
	1.12.1.	Use 'out' keyword (no need to assign because it is an out)
	1.12.2.	Ref and Out Parameters
	1.12.3.	Out Parameters
	1.12.4.	Use out
	1.12.5.	Use two out parameters

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