LeetCode 58: 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) {
        // Remove leading and trailing spaces.
        String sCut = s.trim();
        
        int n = sCut.length();
        
        if (n == 0)
            return 0;
            
        int count = 0; // Length of last word

        for (int i = n-1; i >= 0; i--)
            if (sCut.charAt(i) != ' ')
                count++;
            else
                break;
                
        return count;
    }
}