Premature optimization in Java: when to use “x = foo.getX()” vs simply “foo.getX()”

Question

When I find myself calling the same getter method multiple times, should this be considered a problem? Is it better to [always] assign to a local variable and call only once?

Answer 1

They could be 2 different things.

If GetX is non-deterministic then the 1st one will give different results than the 2nd

Personally, I'd use the 2nd one. It's more obvious and less unnecessarily verbose.