public static void main(String[] args) {
        List<String> numberslist = new ArrayList<String>(Arrays.asList(args));
        Collections.sort(numberslist);

        System.out.println("Maximum: "+maximum(numberslist));
        System.out.println("Median: "+median(numberslist));
        System.out.println("StandardDeviation: "+standard_deviation(numberslist));
    }