Readability vs Performance

Question

Recently we had a discussion at work about the impact of local variables on the performance vs readability of Java code. Some of my colleagues are of the oppinion that declarati

Answer 1

A person's time is millions of times more expensive than a computer's time.

If the line of code is expected to execute millions of times more than it will be looked at by a programmer then perhaps you should consider optimising. But certainly not until then.

Even then, it is completely pointless to optimise as if the compiler is stupid.

Don't forget! Premature optimization is the root of all evil.