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📜  java.time.LocalDate类

📅  最后修改于: 2020-11-14 10:43:10             🧑  作者: Mango

介绍

java.time.LocalDate类表示ISO- 8601日历系统中没有时区的日期，例如2007-12-03。

类声明

以下是java.time.LocalDate类的声明-

public final class LocalDate
   extends Object
      implements Temporal, TemporalAdjuster, ChronoLocalDate, Serializable

领域

  • 以下是java.time.LocalDate类的字段-

  • 静态LocalDate MAX-支持的最大LocalDate，’+ 999999999-12-31’。

  • 静态LocalDate MIN-支持的最小LocalDate’-999999999-01-01’。

类方法

Sr.No. Method & Description
1 Temporal adjustInto(Temporal temporal)

Adjusts the specified temporal object to have the same date as this object.
2 LocalDateTime atStartOfDay()

Combines this date with the time of midnight to create a LocalDateTime at the start of this date.
3 ZonedDateTime atStartOfDay(ZoneId zone)

Returns a zoned date-time from this date at the earliest valid time according to the rules in the time-zone.
4 LocalDateTimeatTime(int hour, int minute)

Combines this date with a time to create a LocalDateTime.
5 LocalDateTime atTime(int hour, int minute, int second)

Combines this date with a time to create a LocalDateTime.
6 LocalDateTime atTime(int hour, int minute, int second, int nanoOfSecond)

Combines this date with a time to create a LocalDateTime.
7 LocalDateTime atTime(LocalTime time)

Combines this date with a time to create a LocalDateTime.
8 OffsetDateTime atTime(OffsetTime time)

Combines this date with an offset time to create an OffsetDateTime.
9 int compareTo(ChronoLocalDate other)

Compares this date to another date.
10 boolean equals(Object obj)

Checks if this date is equal to another date.
11 String format(DateTimeFormatter formatter)

Formats this date using the specified formatter.
12 static LocalDate from(TemporalAccessor temporal)

Obtains an instance of LocalDate from a temporal object.
13 int get(TemporalField field)

Gets the value of the specified field from this date as an int.
14 IsoChronology getChronology()

Gets the chronology of this date, which is the ISO calendar system.
15 int getDayOfMonth()

Gets the day-of-month field.
16 DayOfWeek getDayOfWeek()

Gets the day-of-week field, which is an enum DayOfWeek.
17 int getDayOfYear()

Gets the day-of-year field.
18 Era getEra()

Gets the era applicable at this date.
19 long getLong(TemporalField field)

Gets the value of the specified field from this date as a long.
20 Month getMonth()

Gets the month-of-year field using the Month enum.
21 int getMonthValue()

Gets the month-of-year field from 1 to 12.
22 int getYear()

Gets the year field.
23 int hashCode()

A hash code for this date.
24 boolean isAfter(ChronoLocalDate other)

Checks if this date is after the specified date.
25 boolean isBefore(ChronoLocalDate other)

Checks if this date is before the specified date.
26 boolean isEqual(ChronoLocalDate other)

Checks if this date is equal to the specified date.
27 boolean isLeapYear()

Checks if the year is a leap year, according to the ISO proleptic calendar system rules.
28 boolean isSupported(TemporalField field)

Checks if the specified field is supported.
29 boolean isSupported(TemporalUnit unit)

Checks if the specified unit is supported.
30 int lengthOfMonth()

Returns the length of the month represented by this date.
31 int lengthOfYear()

Returns the length of the year represented by this date.
32 LocalDate minus(long amountToSubtract, TemporalUnit unit)

Returns a copy of this date with the specified amount subtracted.
33 LocalDateminus(TemporalAmount amountToSubtract)

Returns a copy of this date with the specified amount subtracted.
34 LocalDate minusDays(long daysToSubtract)

Returns a copy of this LocalDate with the specified number of days subtracted.
35 LocalDate minusMonths(long monthsToSubtract)

Returns a copy of this LocalDate with the specified number of months subtracted.
36 LocalDateminusWeeks(long weeksToSubtract)

Returns a copy of this LocalDate with the specified number of weeks subtracted.
37 LocalDateminusYears(long yearsToSubtract)

Returns a copy of this LocalDate with the specified number of years subtracted.
38 static LocalDate now()

Obtains the current date from the system clock in the default time-zone.
39 static LocalDate now(Clock clock)

Obtains the current date from the specified clock.
40 static LocalDate now(ZoneId zone)

Obtains the current date from the system clock in the specified time-zone.
41 static LocalDate of(int year, int month, int dayOfMonth)

Obtains an instance of LocalDate from a year, month and day.
42 static LocalDate of(int year, Month month, int dayOfMonth)

Obtains an instance of LocalDate from a year, month and day.
43 static LocalDate ofEpochDay(long epochDay)

Obtains an instance of LocalDate from the epoch day count.
44 static LocalDate ofYearDay(int year, int dayOfYear)

Obtains an instance of LocalDate from a year and day-of-year.
45 static LocalDate parse(CharSequence text)

Obtains an instance of LocalDate from a text string such as 2007-12-03.
46 static LocalDate parse(CharSequence text, DateTimeFormatter formatter)

Obtains an instance of LocalDate from a text string using a specific formatter.
47 LocalDate plus(long amountToAdd, TemporalUnit unit)

Returns a copy of this date with the specified amount added.
48 LocalDate plus(TemporalAmount amountToAdd)

Returns a copy of this date with the specified amount added.
49 LocalDate plusDays(long daysToAdd)

Returns a copy of this LocalDate with the specified number of days added.
50 LocalDateplusMonths(long monthsToAdd)

Returns a copy of this LocalDate with the specified number of months added.
51 LocalDate plusWeeks(long weeksToAdd)

Returns a copy of this LocalDate with the specified number of weeks added.
52 LocalDate plusYears(long yearsToAdd)

Returns a copy of this LocalDate with the specified number of years added.
53 R query(TemporalQuery query)

Queries this date using the specified query.
54 ValueRange range(TemporalField field)

Gets the range of valid values for the specified field.
55 long toEpochDay()

Converts this date to the Epoch Day.
56 String toString()

Outputs this date as a String, such as 2007-12-03.
57 Period until(ChronoLocalDate endDateExclusive)

Calculates the period between this date and another date as a Period.
58 long until(Temporal endExclusive, TemporalUnit unit)

Calculates the amount of time until another date in terms of the specified unit.
59 LocalDate with(TemporalAdjuster adjuster)

Returns an adjusted copy of this date.
60 LocalDate with(TemporalField field, long newValue)

Returns a copy of this date with the specified field set to a new value.
61 LocalDate withDayOfMonth(int dayOfMonth)

Returns a copy of this LocalDate with the day-of-month altered.
62 LocalDate withDayOfYear(int dayOfYear)

Returns a copy of this LocalDate with the day-of-year altered.
63 LocalDate withMonth(int month)

Returns a copy of this LocalDate with the month-of-year altered.
64 LocalDate withYear(int year)

Returns a copy of this LocalDate with the year altered.

方法继承

此类从以下类继承方法-

  • Java.lang.Object