Length of Last Word

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.

Note: A word is defined as a character sequence consists of non-space characters only.

Example:

Input: “Hello World”
Output: 5

public int lengthOfLastWord(String s) {     int len = s.length();     int count =0;     for(int i=len-1;i>=0;i--){         if(s.charAt(i)!=' '){             count++;         }         if(s.charAt(i)==' '&&count!=0){             return count;         }     }     return count;    }

文章转载自：https://www.cnblogs.com/springfor/p/3872326.html