Why is DateTimeFormatter able to format a fraction of a second but not able to parse it?
The code below fails at the parse if I do not replace the fmt to "yyyyMMddHHmmss" (remove the SS at the end);
import java.time.*;
import java.time.format.*;
public static void main (String [] args) throws Exception
{
String fmt = "yyyyMMddHHmmssSS";
ZonedDateTime now = ZonedDateTime.now ();
DateTimeFormatter dtf = DateTimeFormatter.ofPattern (fmt).withZone (ZoneOffset.UTC);
String s = dtf.format (now);
ZonedDateTime x = ZonedDateTime.parse (s, dtf);
}
Exception is
Text '2018071819500784' could not be parsed at index 0
