Which of recursion method is better and why for reverse digits of integer?

Question

public static int recursiveReverse(int number, int reversenumber){

    if(number <= 0) {
        return reversenumber;
    }

    reversenumber = reversenumber *         


        

Answer 1

I don't see any difference between the first and second example

but using a static variable in the third example is dangerous (you need to reset it each time and it's not threadsafe)