Kth Element in a list

int findKthElement(Object[] objects, int kth) {

        System.out.println("findKte");

        int i = rd.nextInt(objects.length);

        ArrayList listOne = new ArrayList<>();

        ArrayList listTwo = new ArrayList<>();

        for (int j = 0; j < objects.length; j++) {

            if ((int) objects[j] < (int) objects[i]) {

                listOne.add(objects[j]);

            } else if ((int) objects[j] > (int) objects[i]) {

                listTwo.add(objects[j]);

            }

        }

        if (kth <= listOne.size()) {

            return findKthElement(listOne.toArray(), kth);

        } else if (kth > (objects.length - listTwo.size())) {

            return findKthElement(listTwo.toArray(), kth

                    - (objects.length - listTwo.size()));

        } else {

            return (int) objects[i];

        }

    }