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.
分析，求字符串最后一个单词的长度，需要注意特殊情况，字符串为null的情况
public class Solution {
public int lengthOfLastWord(String s) {
String w[]=s.split(" ");
int l=w.length;
if(l==0)
return 0;
else
return w[l-1].length();
}
}
Leetcode#58Length of Last Word
原文：http://7061299.blog.51cto.com/7051299/1640405