leetcode-58. Longitud de la última palabra

Asunto: https://leetcode-cn.com/problems/length-of-last-word/

responder:

 public int lengthOfLastWord (String s) {

    s = s.trim ();

         int index = s.lastIndexOf ("");

         si (índice <0) {

             return s.length ();

         }más{

             return s.length () - índice-1;

         }

    }