reverse words in

    public static String reverseWords(String s){
        String[] strArray=s.split(" ");
        StringBuilder sb = new StringBuilder();
        List<String> strList= Arrays.asList(strArray);
        Collections.reverse(strList);
        strArray= (String[])strList.toArray();
        for (int i=0; i<strArray.length; i++){
            sb.append(strArray[i]);
        }

        return sb.toString();
    }