Why I Love C# and Mono?

Let the comments in the code do the talking.
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using System;
using System.Collections.Generic;

public class Iter
{
    public class Book
    {
        //short way to declare a property:
        public string Title { get; set; }
        public string Author { get; set; }
    }

    public static void Main(string[] args)
    {
        // implicit type, yet still a strong type:
        var books = new List<Book>
        {
            // inline initialization:
            new Book { Title = "Book1", Author = "Moshe" },
            new Book { Title = "Book2", Author = "NotMoshe" }
        };
       
        // closure, lambda expression:
        books.ForEach(book => Console.WriteLine(book.Title));
    }
}

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Did you know C# has all of those cool features?
This is why I think that even if you're not going to write code in C#, you should get familiar with it.