I have a small static method mymethod inside a relatively big (library) class com.package.pirulo. I can do one of two things: Either I import com.package.pirulo and then I just use pirulo.mymethod(...), or I can use direclty the method with com.package.pirulo.mymethod(...).
Which is cheaper from a resources/speed point of view? It looks like the second option is cheaper , but since mymethod can call other methods in com.package.pirulo maybe the whole library is always somehow imported anyway…
And: is the first option as expensive (same POV) as instantiating a pirulo object?
Importing makes absolutely no difference at runtime, and only a negligible (at most) difference at compile-time.