【LeetCode】058.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.

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

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

解答：

只需用split即可。注意split的结果可能为空。

代码：

public class Solution {    public int lengthOfLastWord(String s) {if (s == null || s.length() == 0)return 0;String[] arrayStr = s.split(" ");return arrayStr.length > 0 ? arrayStr[arrayStr.length - 1].length() : 0;}}