[LeetCode] Length of Last Word

Problem

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.

Example

Input: "Hello World"
Output: 5

Solution

class Solution {
    public int lengthOfLastWord(String s) {
        String[] strs = s.trim().split(" ");
        if (strs == null || strs.length < 1) return 0;
        return strs[strs.length-1].length();
    }
}