I want to know why the following question was closed. closed question on dba
That question is nothing, but a link to a valid question on SO ( with an excepted wrong answer there).
I agree that a valid question has to be more than a link, but I think that some comments why the question is closed would help to make it more transparent and give the questioner a chance to rewrite it as valid question.
I state, that the original question from SO What programming language is this? would be a perfectly valid question here.