Is it better to reuse a StringBuilder in a loop?

Question

I\'ve a performance related question regarding use of StringBuilder. In a very long loop I\'m manipulating a StringBuilder and passing it to another method like

Answer 1

The modern JVM is really smart about stuff like this. I would not second guess it and do something hacky that is less maintainable/readable...unless you do proper bench marks with production data that validate a non-trivial performance improvement (and document it ;)