Is it acceptable to email an Interviewer after the interview?
Yesterday I took part in an interview for a Java position in a company and one of the questions was

> Does Java pass by reference or by
> value?

In the heat of the moment I (mistakenly) confidently said it passed by reference, possibly because I come from a C/C++ background. Unfortunately after the interview I'd realised my terrible mistake to my horror.

So my question is this, is it acceptable for me to wait a few days and drop a quick email to recognise my mistake? 

Or should I just let this one lie?
Is it acceptable to email an Interviewer after the interview?
===

Yesterday I took part in an interview for a Java position in a company and one of the questions was

> Does Java pass by reference or by
> value?

In the heat of the moment I (mistakenly) confidently said it passed by reference, possibly because I come from a C/C++ background. Unfortunately after the interview I'd realised my terrible mistake to my horror.

So my question is this, is it acceptable for me to wait a few days and drop a quick email to recognise my mistake? 

Or should I just let this one lie?