Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string.

If the last word does not exist, return 0.

1 public class Solution { 2     public int lengthOfLastWord(String s) { 3         int len = s.length(); 4         int count=0; 5         for(int i=len-1;i>=0;i--){ 6             if(s.charAt(i)==' '&&count==0)continue; 7             else if(s.charAt(i)==' '){ 8                 break; 9             }10             else{11                 count++;12             }13         }14         return count;15     }16 }