Quick Java Optimization Question

Question

Will the Eclipse compiler automatically convert multiplication by a power of two into a bit shift, or should I do that manually? Thanks for the help.

Answer 1

Don't second guess a modern java compiler unless you know exactly what you are doing. This not only applies to simple math like you question, but everything. E.g.: like flow control.

People waaaaay smarter than us have put lots of effort into making it all super fast.