private static void sort(int[] array) {
    ArrayList<Integer> arraycopy = new ArrayList<>();
    for (int i = 0; i < 20; i++) {
        arraycopy.add(i, array[i]);
    }
    Collections.sort(arraycopy);
    for (int i = 19; i >= 0; i--) array[19 - i] = arraycopy.get(i);
}