2017-03-20から1日間の記事一覧

Java9で小の月を列挙する

jshell> LocalDate.of(2017,1,31).datesUntil(LocalDate.of(2018,1,1),Period.ofMonths(1)). ...> filter(d -> d.getDayOfMonth() != 31). ...> map(LocalDate::getMonth). ...> toArray() $163 ==> Object[5] { FEBRUARY, APRIL, JUNE, SEPTEMBER, NOVEMBER…