public static void stringInDetail(String s) {
        System.out.println(s + "  length: " + s.length());
        for (int i = 0; i < s.length(); i++) {
            char c = s.charAt(i);
            System.out.printf("i : %2d \u202B%c\u202B \u202B%4X\u202B \n", i, s.charAt(i), (int) c);// Character.getNumericValue(c)
        }
    }