In Java is there a performance difference between referencing a field through getter versus through a variable?

Question

Is there any differences between doing

Field field = something.getSomethingElse().getField();
if (field == 0) {
//do something    
}
somelist.add(field);
         


        

Answer 1

I wouldn't worry about the performance difference. You'd be better to not think about it and instead spend time on profiling your code in a realistic scenario. You will most likely find that the slow parts of your program aren't where you think they are.