The foreach identifier and closures

Question

In the two following snippets, is the first one safe or must you do the second one?

By safe I mean is each thread guaranteed to call the method on the Foo from the s

Answer 1

Pop Catalin and Marc Gravell's answers are correct. All I want to add is a link to my article about closures (which talks about both Java and C#). Just thought it might add a bit of value.

EDIT: I think it's worth giving an example which doesn't have the unpredictability of threading. Here's a short but complete program showing both approaches. The "bad action" list prints out 10 ten times; the "good action" list counts from 0 to 9.

using System;
using System.Collections.Generic;

class Test
{
    static void Main() 
    {
        List badActions = new List();
        List goodActions = new List();
        for (int i=0; i < 10; i++)
        {
            int copy = i;
            badActions.Add(() => Console.WriteLine(i));
            goodActions.Add(() => Console.WriteLine(copy));
        }
        Console.WriteLine("Bad actions:");
        foreach (Action action in badActions)
        {
            action();
        }
        Console.WriteLine("Good actions:");
        foreach (Action action in goodActions)
        {
            action();
        }
    }
}