Re: VMS Software Bootcamp 2024

On 9/17/2024 8:37 PM, Lawrence D'Oliveiro wrote:

On Tue, 17 Sep 2024 19:40:07 -0400, Arne Vajhøj wrote:

On 9/17/2024 7:25 PM, Lawrence D'Oliveiro wrote:

I would say Java in particular is an example of how not to do it.

>
You mean that "HH:mm" and "hh:mm a" are way worse than '%H:%M' and
'%I:%M %p' ?
>
:-)

 I mean, look at the mess of classes that makes up the Java date/time API.

That is a bit peripheral to the time formatting issue.
The java.time package added in Java 8 is indeed rather big and
can be hard to navigate.
The old stuff is pretty straightforward.
All one need to know is:
Date = point in time = C time_t
Calendar/GregorianCalendar = conversion between point in time and time components = C gmtime/localtime/mktime
DateFormat/SimpleDateFormat = conversion between binary and text representation = C strftime/strptime
(the java.time equivalents are Instant, LocalDateTime and
DateTimeFormatter)
Arne