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  1. // POO con menos if's (c) 2024 Baltasar <baltasarq@gmail.com> MIT License
  2.  
  3. using System;
  4. using System.Text;
  5. using System.Collections.Generic;
  6.  
  7.  
  8. class POI {
  9.     public /*required*/ string Name { get; init; }
  10.     public /*required*/ double Lat { get; init; }
  11.     public /*required*/ double Lon { get; init; }
  12.  
  13.     public override string ToString()
  14.     {
  15.     	return $"{this.Name}: W{this.Lon}º N{this.Lat}º";
  16.     }
  17. }
  18.  
  19. class City: POI {
  20. 	public override string ToString()
  21.     {
  22.     	return "Ciudad de " + base.ToString();
  23.     }
  24. }
  25.  
  26. class Monument: POI {
  27. 	public override string ToString()
  28.     {
  29.     	return "Monumento de " + base.ToString();
  30.     }
  31. }
  32.  
  33. class Mountain: POI {
  34. 	public override string ToString()
  35.     {
  36.     	return "Cima del " + base.ToString();
  37.     }
  38. }
  39.  
  40. class Lake: POI {
  41. 	public override string ToString()
  42.     {
  43.     	return "Lago " + base.ToString();
  44.     }
  45. }
  46.  
  47. class Reporter {
  48.     public Reporter(IEnumerable<POI> lpois)
  49.     {
  50.         this.lpois = new List<POI>( lpois );
  51.     }
  52.  
  53.     public IList<POI> LPOIS => new List<POI>( this.lpois );
  54.  
  55.     public string Report()
  56.     {
  57.         var toret = new StringBuilder();
  58.  
  59.         foreach(var poi in this.lpois) {
  60.             toret.AppendLine( poi.ToString() );
  61.         }
  62.  
  63.         return toret.ToString();
  64.     }
  65.  
  66.     private List<POI> lpois;
  67. }
  68.  
  69. public class Test
  70. {
  71. 	public static void Main()
  72. 	{
  73. 		var l1 = new List<POI> {
  74. 		    new City { Name = "El Cabo",
  75. 		             Lat = -34.0558188,
  76. 		             Lon = 18.3003856 },
  77. 		    new Mountain { Name = "Everest",
  78. 		             Lat = 27.9881186,
  79.                      Lon = 86.9043755 },
  80.             new Monument { Name = "Torre Eiffel",
  81. 		             Lat = 48.8583,
  82.                      Lon = -2.2945 },
  83.             new Lake { Name = "Español",
  84.                      Lat = 43.6150755,
  85.                      Lon = 173.1834932 },
  86. 		};
  87.  
  88. 		Console.WriteLine( new Reporter( l1 ).Report() );
  89. 	}
  90. }
  91.  
Success #stdin #stdout 0.06s 28892KB
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stdin
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stdout
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Ciudad de El Cabo: W18.3003856º N-34.0558188º
Cima del Everest: W86.9043755º N27.9881186º
Monumento de Torre Eiffel: W-2.2945º N48.8583º
Lago Español: W173.1834932º N43.6150755º
https://ideone.com/jmQTuh
Eliminar if's con POO
language:
C# (NET 6.0)
created:
60 days ago
visibility:
public

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