Простые вещи

В коде, ниже, простота и выразительность языка C#. Код легко понять даже ребенку.

using System;
using System.Linq;
using System.Linq.Expressions;
using System.Collections.Generic;


namespace t
{
 class MainClass
 {
  public static void Main (string[] args)
  {
   Action<Product> printName = (p) => Console.WriteLine (p.Name);

   Action<Product> printTax = (p) => 
    Console.WriteLine (p.Price * Convert.ToDecimal (0.18));
   
   Action<Product> print = (p) => {
    printName.Invoke (p);
    printTax.Invoke (p);
    Console.WriteLine(p.Price);
   };

   Product.List ()
    .Where (x => x.Price > 0)
    .OrderBy (p => p.Name)
    .ToList ()
    .ForEach (print);
  }
 }

 class Product
 {
  public string Name{ get; }

  public Decimal Price{ get; }

  public Product (string name, Decimal price)
  {
   Name = name;
   Price = price;
  }

  public override string ToString ()
  {
   return string.Format ("[Product: Name={0}, Price={1}]", Name, Price);
  }

  #region Вспомогательные функции для отладки

  public static List<Product> List ()
  {
   return new List<Product> () { 
    new Product (name: "Пицца", price: 1),
    new Product (name: "Колбаса", price: 3),
    new Product (name: "Сыр", price: 2)
   }; 
  }

  #endregion
 }
}