Question:

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:

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

Solution:

JAVAclass Solution {
    public int countSegments(String s) {
       String trimmed = s.trim();
        if (trimmed.equals("")) {
            return 0;
        }
        return trimmed.split("\\s+").length;
    }
}