Length of Last Word

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.

public class Solution {
    public int lengthOfLastWord(String s) {
        if(0 == s.length())
            return 0;
        s = s.trim();
        int count = 0;
       
        for(int i = s.length() - 1; i >= 0;i--){
            if(' ' == s.charAt(i)){
                break;
            }
            count++;
        }
        return count;
    }
}