// See https://en.wikipedia.org/wiki/Day_count_convention#30E.2F360_ISDA
private int diff360EIsda(final LocalDate start, final LocalDate end) {
if (start.equals(end)) {
return 0;
}
int dayStart = start.getDayOfMonth();
int dayEnd = end.getDayOfMonth();
if (start.getMonth().length(start.isLeapYear()) == dayStart) {
dayStart = MONTH_30_DAYS;
}
if (end.getMonth() != Month.FEBRUARY && end.getMonth().length(end.isLeapYear()) == dayEnd) {
dayEnd = MONTH_30_DAYS;
}
return (end.getYear() - start.getYear()) * YEAR_360
+ (end.getMonthValue() - start.getMonthValue()) * MONTH_30_DAYS
+ dayEnd
- dayStart;
}
private Month create(final LocalDate year, final LocalDate localMonth) {
log.debug("Entering with {}, {}", year, localMonth);
Month month = new Month();
month.setMonth(localMonth.getMonth());
for (int i = 0; i < localMonth.getMonth().length(year.isLeapYear()); i++)
month.getDays().add(create(localMonth.plusDays(i)));
createWeeks(month);
return month;
}
static void f1() {
LocalDate date = LocalDate.of(2016, Month.JANUARY, 24);
int year = date.getYear(); // 2016
Month month = date.getMonth(); // 1月
int dom = date.getDayOfMonth(); // 24
DayOfWeek dow = date.getDayOfWeek(); // 星期天,SUNDAY
int len = date.lengthOfMonth(); // 31 （1月份的天数）
boolean leap = date.isLeapYear(); // true （是闰年）
date = date.withYear(2015); // 2015-01-24
date = date.plusMonths(2); // 2015-03-24
date = date.minusDays(1); // 2015-03-23
System.out.println(dow);
}
private static void useLocalDate() {
LocalDate date = LocalDate.of(2014, 3, 18);
int year = date.getYear(); // 2014
Month month = date.getMonth(); // MARCH
int day = date.getDayOfMonth(); // 18
DayOfWeek dow = date.getDayOfWeek(); // TUESDAY
int len = date.lengthOfMonth(); // 31 (days in March)
boolean leap = date.isLeapYear(); // false (not a leap year)
System.out.println(date);
int y = date.get(ChronoField.YEAR);
int m = date.get(ChronoField.MONTH_OF_YEAR);
int d = date.get(ChronoField.DAY_OF_MONTH);
LocalTime time = LocalTime.of(13, 45, 20); // 13:45:20
int hour = time.getHour(); // 13
int minute = time.getMinute(); // 45
int second = time.getSecond(); // 20
System.out.println(time);
LocalDateTime dt1 = LocalDateTime.of(2014, Month.MARCH, 18, 13, 45, 20); // 2014-03-18T13:45
LocalDateTime dt2 = LocalDateTime.of(date, time);
LocalDateTime dt3 = date.atTime(13, 45, 20);
LocalDateTime dt4 = date.atTime(time);
LocalDateTime dt5 = time.atDate(date);
System.out.println(dt1);
LocalDate date1 = dt1.toLocalDate();
System.out.println(date1);
LocalTime time1 = dt1.toLocalTime();
System.out.println(time1);
Instant instant = Instant.ofEpochSecond(44 * 365 * 86400);
Instant now = Instant.now();
Duration d1 = Duration.between(LocalTime.of(13, 45, 10), time);
Duration d2 = Duration.between(instant, now);
System.out.println(d1.getSeconds());
System.out.println(d2.getSeconds());
Duration threeMinutes = Duration.of(3, ChronoUnit.MINUTES);
System.out.println(threeMinutes);
JapaneseDate japaneseDate = JapaneseDate.from(date);
System.out.println(japaneseDate);
}