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  1. using System;
  2.  
  3. namespace Articulos.Cap04.TiposNullables
  4. {
  5.     public sealed class LiftingOperadores
  6.     {
  7.         public static void Main()
  8.         {
  9.             // Declaración de variables nullable:
  10.             int? x = 13;
  11.             int? y = null;
  12.  
  13.             // Ejemplos con operadores de igualdad:
  14.             Console.WriteLine ("\n--- Ejemplos de Operadores de Igualdad ---\n");
  15.             Console.WriteLine ("\tx == y -> {0:3}", (x == y));            // False
  16.             Console.WriteLine ("\tx == null -> {0}", (x == null));        // False
  17.             Console.WriteLine ("\tx == 13 -> {0}", (x == 13));            // True
  18.             Console.WriteLine ("\ty == null -> {0}", (y == null));        // True
  19.             Console.WriteLine ("\ty == 13 -> {0}", (y == 13));            // False
  20.             Console.WriteLine ("\ty != 13 -> {0}", (y != 13));            // True
  21.  
  22.             Console.WriteLine ("\n--- Ejemplos de Operadores Relacionales ---\n");
  23.             Console.WriteLine ("\tx < 17 -> {0}", (x < 17));            // True
  24.             Console.WriteLine ("\ty < 17 -> {0}", (y < 17));            // False
  25.             Console.WriteLine ("\ty > 17 -> {0}", (y > 17));            // False
  26.  
  27.             Console.WriteLine ("\n--- Ejemplos de Otros Operadores ---\n");
  28.             Console.WriteLine ("\tx + 13 -> {0}", (x + 13));            // 26
  29.             Console.WriteLine ("\tx + y -> {0}", (x + y));                // null (no imprime nada)
  30.  
  31.             Console.WriteLine ();
  32.         }
  33.     }
  34. }
Success #stdin #stdout 0.03s 33768KB
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--- Ejemplos de Operadores de Igualdad ---

	x == y -> False
	x == null -> False
	x == 13 -> True
	y == null -> True
	y == 13 -> False
	y != 13 -> True

--- Ejemplos de Operadores Relacionales ---

	x < 17 -> True
	y < 17 -> False
	y > 17 -> False

--- Ejemplos de Otros Operadores ---

	x + 13 -> 26
	x + y ->
https://ideone.com/YOA6Ef
Demostración de varios operadores con tipos nullable.
language:
C# (gmcs 5.20.1)
created:
10 years ago
visibility:
public

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