Count the number of segments in a string, where a segment is defined to be a contiguous sequence of non-space characters.
For example,
Input: "Hello, my name is John"
Output: 5
public int countSegments(String s) {
String trimmed = s.trim();
if (trimmed.length() == 0)
return 0;
else
return trimmed.split("\\s+").length;
}