LeetCode.58 Length of Last Word

题目：

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.

注意事项：

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

举例：

For example, 
Given s = "Hello World",
return 5.

分析：

public class Solution {    public int lengthOfLastWord(String s) {        int count=0;        for(int i=s.length()-1;i>=0;i-- ){            //判断是否是空格            if(s.charAt(i)==' '){                //判断count是否为0                if(count==0){                    //表明都最右边均为空格                    continue;                }                //表示右边存在字符                break;            }            //遇到字符            count++;        }        return count;    }}