JodaTime
To convert JodaTime’s org.joda.time.LocalDate to java.util.Date, do
Date date = localDate.toDateTimeAtStartOfDay().toDate();
To convert JodaTime’s org.joda.time.LocalDateTime to java.util.Date, do
Date date = localDateTime.toDate();
JavaTime
To convert Java8’s java.time.LocalDate to java.util.Date, do
Date date = Date.from(localDate.atStartOfDay().atZone(ZoneId.systemDefault()).toInstant());
To convert Java8’s java.time.LocalDateTime to java.util.Date, do
Date date = Date.from(localDateTime.atZone(ZoneId.systemDefault()).toInstant());
You might be tempted to shorten it with LocalDateTime#toInstant(ZoneOffset), but there isn’t a direct API to obtain the system default zone offset.
To convert Java8’s java.time.ZonedDateTime to java.util.Date, do
Date date = Date.from(zonedDateTime.toInstant());