Question

is Calling a static Java method ( a factory class method ) creates an object of that Class ?

I mean a static method returns a value let’s say an Array’s size ( array is variable of class )

I’ve checked the code but couldn’t see that the Object of that class never instantiated before calling the static method. ?

public static boolean isFiveInstance() {
    return _instances.size() == 5;
}

and _instances is class variable

private static ArrayList<LocalMediaPlayer> _instances;

and is being created and filled in the constructer.

Answer 1

No, static invocations do not instantiated objects (because they do not require one).

The first time you refer to a class, including static method invocation, the class is loaded. by the classloader.

That’s where the static initializer comes into play:

static {
     // do something
}

this block is called whenever the class is initialized (once per classloader)