Convert List<Integer> top Int[]

convertlist<>to int[].txt

    private int[] toIntArray(List<Integer> list) {
        int[] ret = new int[list.size()];
        for (int i = 0; i < ret.length; i++)
            ret[i] = list.get(i);
        Log.d("ret", Arrays.toString(ret));
        return ret;
    }

    private String[] toStringArray(List<String> list) {
        return list.toArray(new String[list.size()]);
    }