Number of Segments in a String

Count the number of segments in a string, where a segment is defined to be a contiguous sequence of non-space characters.

Please note that the string does not contain any non-printable characters.

Example:

Input: "Hello, my name is John"
Output: 5

public class Solution {
    public int countSegments(String s) {
        int result = 0;
        
        int i = 0, n = s.length();
        while (i < n) {
            if (s.charAt(i) != ' ') {
                while (i < n && s.charAt(i) != ' ') i++;
                result++;
            }
            
            while (i < n && s.charAt(i) == ' ') i++;
        }
        return result;
    }
}