C# Brainteasers

Here's some code using the anonymous method feature of C# 2. What does it do?

using System;
using System.Collections.Generic;

class Test
{
    delegate void Printer();
   
    static void Main()
    {
        List<Printer> printers = new List<Printer>();
        for (int i=0; i < 10; i++)
        {
            printers.Add(delegate { Console.WriteLine(i); });
        }
       
        foreach (Printer printer in printers)
        {
            printer();
        }
    }
}

Answer: Ah, the joys of captured variables. There's only one i variable here, and its value changes on each iteration of the loop. The anonymous methods capture the variable itself rather than its value at the point of creation - so the result is 10 printed ten times!