How do I get start of date and end of date times

In this Q&A, we'll go over how to create date time objects with start of day and end of day times.  We'll use the date/time classes in java.time package and not the pre Java 8 Date and Time classes.

See the code snippet below on how to construct date or datetime objects.  Code is self-explanatory.

// Date without time.

LocalDate ld = LocalDate.now();

System.out.println( ld.toString());

// start of date and end of date times

LocalDateTime sod = ld.atTime(LocalTime.MIDNIGHT);

LocalDateTime eod = ld.atTime(LocalTime.MAX);

System.out.println( sod.toString());

System.out.println( eod.toString());

// start of date with zone

ZonedDateTime zdt = sod.atZone(ZoneId.systemDefault());

System.out.println( zdt.toString());