Looking for feedback on this here code. Is readability an issue? Is it good to mess with all these data types in Java (e.g. strings and Chars and using .equals() and != to compare data from different datatypes), or is there an easier way to do it? And in general, how can I improve this code?

[![Problem Description][1]][1]

       public static boolean allPlural(String[] words){
            for (String s : words) {
                // blank string is not plural
                if (s.equals("")) {
                    return false;
                }
                // if the strings in the array don't have an s on the end, return false
                if (Character.toUpperCase(s.charAt(s.length()-1)) != 'S') {
                    return false;
                }
            }
            return true;
        }


  [1]: https://i.sstatic.net/hMbRc.png