I assume you meant Arrays.sort(arr), not Array.sort(arr).

That should sort  the array  OK. If it didn't work for you, post your code and
we'll look at it.

However, you indicate "high to low", so you're talking a descending sort. For
that, I think you need to go to Collections.sort and use a comparator. See
java.sun.com/.../Collections.html for
information.