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javacalendartimestampmillisecondsjava.util.calendar

Calendar with no milliseconds vs Calendar with milliseconds that are 0

I cannot figure out how to tell if a Calendar object was created with no milliseconds versus a Calendar object that was created with milliseconds that happens to have a value 0.

I need to distinguish between the time stamps

2018 04 30 13:44:55 -0500
and
2018 04 30 13:44:55.000 -0500

The latter shows that the time clock is reporting time with a resolution to milliseconds while the former is only reporting time with a resolution to seconds. So in the latter case I want to display the '000' but in the former I do not.

Calendar.get(Calendar.MILLISECONDS) = 0 clearly does not solve this problem. Any ideas on how to do this?

Solution

  • The Calendar::isSet(int) method will test if a specific field has been set.