Reverse String in Java without using any Temporary String,Char or String Builder

Question

Is it possible to reverse String in Java without using any of the temporary variables like String, Char[] or StringBuilder?

Only can use int, or int[].

Answer 1

String reverseMe = "reverse me!";
for (int i = 0; i < reverseMe.length(); i++) {
    reverseMe = reverseMe.substring(1, reverseMe.length() - i)
        + reverseMe.substring(0, 1)
        + reverseMe.substring(reverseMe.length() - i, reverseMe.length());
 }
 System.out.println(reverseMe);

Output:

!em esrever

Just for the fun of it, of course using StringBuffer would be better, here I'm creating new Strings for each Iteration, the only difference is that I'm not introducing a new reference, and I've only an int counter.