using System;

public class Program

{

    public static void Main()

    {

        bool myBool = false;

        var result = myBool ? "one is true" : "one is false";

        string myString = null;

        // if myString is not null, then take myString, else ...

        result = myString != null ? myString : "myString is null";

        // alternate syntax:

        result = myString ?? "myString is null";

    }

}