LeetCode进阶之路（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.

For example, 
Given s = "Hello World",

return 5.

题目：这应该是碰到过的最简单的一道题目了。

思路：直接用spilt方法分割即可。

public int lengthOfLastWord(String s) {
        String[] str = s.split(" ");
        if(str.length > 0) {
            return str[str.length-1].length();
        }
        return 0;
    }

种一棵树最好的时间是十年前，其次是现在！