using System;
 
public class SobrecargaIndizador
{
    private string[] Datos;
    private int TamanioDatos;
 
    public SobrecargaIndizador (int tamanioDatos)
    {
        TamanioDatos = tamanioDatos;
        Datos = new string[TamanioDatos];
 
        // se inicializa los elementos del arreglo con la cadena "vacío"
        for (int i = 0; i < TamanioDatos; ++i)
        {
            Datos[i] = "vacío";
        }
    }
 
    // primer indizador con parämetro de tipo int y valor de retorno string
    public string this[int indice]
    {
        get
        {
            return Datos[indice];
        }
        set
        {
            Datos[indice] = value;
        }
    }
 
    // segundo indizador con parámetro de tipo string
    public string this[string dato]
    {
        get
        {
            int contador = 0;
 
            for (int i = 0; i < TamanioDatos; ++i)
            {
                if (Datos[i].Equals(dato))
                {
                    ++contador;
                }
            }
 
            return contador.ToString();
        }
        set
        {
            for (int i = 0; i < TamanioDatos; ++i)
            {
                if (Datos[i].Equals(dato))
                {
                    Datos[i] = value;
                }
            }
        }
    }
 
    public static void Main ()
    {
        int tamanio = 10;
        SobrecargaIndizador si = new SobrecargaIndizador(tamanio);
 
        // asigna objetos string a través del indizador con parámetro int
        si[9] = "Desarrollador";
        si[3] = "Programador";
        si[5] = "Arquitecto";
 
        // asiga objeto string a través del indizador con parámetro string
        si["vacío"] = "Analista de Sistemas";
 
        // Contenido del indizador
        for (int i = 1; i < tamanio; ++i)
        {
            Console.WriteLine ("Datos[{0}]: {1}", i, si[i]);
        }
    }
}
 

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