58. Length of Last Word —— Java

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.

PS:  str.split(" ") 代表将字符串以“ ”分割。

需要考虑要是分割后没有数组的情况

class Solution {    public int lengthOfLastWord(String s) {        String[] str = s.split(" ");        int len = str.length;        if(len<=0)            return 0;        char[] array = str[len-1].toCharArray();        return array.length;    }}

注：
http://blog.csdn.net/carssister/article/details/46835027

以上链接，里面写了java字符串分割的三种方法