java.time Package Tutorial

java.time.Month Enum

java.time.Month Enum &-8211; this Article or News was published on this date:2019-05-12 15:31:35 kindly share it with friends if you find it helpful

java.time.Month Enum


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Introduction

The java.time.Month Enum represents a month-of-year, such as &-8216;July&-8217;.

Class declaration

Following is the declaration for java.time.Month Enum −

public enum Month
   extends EnumMonth>
      implements TemporalAccessor, TemporalAdjuster

Enum Constants

Following are the fields for Java.time.Month Enum −

  • JANUARY − The singleton instance for the month of January with 31 days.

  • FEBRUARY − The singleton instance for the month of February with 28 days, or 29 in a leap year.

  • MARCH − The singleton instance for the month of March with 31 days.

  • APRIL − The singleton instance for the month of April with 30 days.

  • MAY − The singleton instance for the month of May with 31 days.

  • JUNE − The singleton instance for the month of June with 30 days.

  • JULY − The singleton instance for the month of July with 31 days.

  • AUGUST − The singleton instance for the month of August with 31 days.

  • SEPTEMBER − The singleton instance for the month of September with 30 days.

  • OCTOBER − The singleton instance for the month of October with 31 days.

  • NOVEMBER − The singleton instance for the month of November with 30 days.

  • DECEMBER − The singleton instance for the month of December with 31 days.

Enum methods

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

Adjusts the specified temporal object to have the same month-of-year as this object.

2 int firstDayOfYear(boolean leapYear)

Gets the day-of-year corresponding to the first day of this month.

3 Month firstMonthOfQuarter()

Gets the month corresponding to the first month of this quarter.

4 static Month from(TemporalAccessor temporal)

Obtains an instance of Month from a temporal object.

5 int get(TemporalField field)

Gets the value of the specified field from this month-of-year as an int.

6 String getDisplayName(TextStyle style, Locale locale)

Gets the textual representation, such as &-8216;Jan&-8217; or &-8216;December&-8217;.

7 long getLong(TemporalField field)

Gets the value of the specified field from this month-of-year as a long.

8 int getValue()

Gets the month-of-year int value.

9 boolean isSupported(TemporalField field)

Checks if the specified field is supported.

10 int length(boolean leapYear)

Gets the length of this month in days.

11 int maxLength()

Gets the maximum length of this month in days.

12 int minLength()

Gets the minimum length of this month in days.

13 Month minus(long months)

Returns the month-of-year that is the specified number of months before this one.

14 static Month of(int month)

Obtains an instance of Month from an int value.

15 Month plus(long months)

Returns the month-of-year that is the specified number of quarters after this one.

16 R> R query(TemporalQueryR> query)

Queries this offset using the specified query.

17 ValueRange range(TemporalField field)

Gets the range of valid values for the specified field.

18 static Month valueOf(String name)

Returns the enum constant of this type with the specified name.

19 static Month[] values()

Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited

This class inherits methods from the following classes −

  • Java.lang.Enum
  • Java.lang.Object


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Discuss java.time package

Discuss java.time package &-8211; this Article or News was published on this date:2019-05-12 15:31:35 kindly share it with friends if you find it helpful

Discuss java.time package


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Java 8 has introduced new Date and Time API under java.time package. This reference will take you through simple and practical methods available in java.time package.




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java.time.ZoneOffset Class

java.time.ZoneOffset Class &-8211; this Article or News was published on this date:2019-05-12 15:31:35 kindly share it with friends if you find it helpful

java.time.ZoneOffset Class


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Introduction

The java.time.ZoneOffset class represents a time-zone offset from Greenwich/UTC, such as +02:00.

Class declaration

Following is the declaration for java.time.ZoneOffset class −

public final class ZoneOffset
   extends ZoneId
      implements TemporalAccessor, TemporalAdjuster, ComparableZoneOffset>, Serializable

Field

Following are the fields for Java.time.ZoneOffset class −

  • static ZoneOffset MAX − Constant for the maximum supported offset.

  • static ZoneOffset MIN − Constant for the minimum supported offset.

  • static ZoneOffset UTC − The time-zone offset for UTC, with an ID of &-8216;Z&-8217;.

Class methods

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

Adjusts the specified temporal object to have the same offset as this object.

2 int compareTo(ZoneOffset other)

Compares this offset to another offset in descending order.

3 boolean equals(Object obj)

Checks if this offset is equal to another offset.

4 static ZoneOffset from(TemporalAccessor temporal)

Obtains an instance of ZoneOffset from a temporal object.

5 int get(TemporalField field)

Gets the value of the specified field from this offset as an int.

6 String getId()

Gets the normalized zone offset ID.

7 long getLong(TemporalField field)

Gets the value of the specified field from this offset as a long.

8 ZoneRules getRules()

Gets the associated time-zone rules.

9 int getTotalSeconds()

Gets the total zone offset in seconds.

10 int hashCode()

A hash code for this offset.

11 boolean isSupported(TemporalField field)

Checks if the specified field is supported.

12 static ZoneOffset of(String offsetId)

Obtains an instance of ZoneOffset using the ID.

13 static ZoneOffset ofHours(int hours)

Obtains an instance of ZoneOffset using an offset in hours.

14 static ZoneOffset ofHoursMinutes(int hours, int minutes)

Obtains an instance of ZoneOffset using an offset in hours and minutes.

15 static ZoneOffset ofHoursMinutesSeconds(int hours, int minutes, int seconds)

Obtains an instance of ZoneOffset using an offset in hours, minutes and seconds.

16 static ZoneOffset ofTotalSeconds(int totalSeconds)

Obtains an instance of ZoneOffset specifying the total offset in seconds.

17 R> R query(TemporalQueryR> query)

Queries this offset using the specified query.

18 ValueRange range(TemporalField field)

Gets the range of valid values for the specified field.

19 String toString()

Outputs this offset as a String, using the normalized ID.

Methods inherited

This class inherits methods from the following classes −

  • Java.time.ZoneId
  • Java.lang.Object


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java.time &-8211; MonthDay

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java.time &-8211; Year

java.time &-8211; YearMonth

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java.time.YearMonth Class

java.time.YearMonth Class &-8211; this Article or News was published on this date:2019-05-12 15:31:34 kindly share it with friends if you find it helpful

java.time.YearMonth Class


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Introduction

The java.time.YearMonth class represents a year-month in the ISO-8601 calendar system, such as 2007-12.

Class declaration

Following is the declaration for java.time.YearMonth class −

public final class YearMonth
   extends Object
      implements Temporal, TemporalAdjuster, ComparableYearMonth>, Serializable

Class methods

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

Adjusts the specified temporal object to have this year-month.

2 LocalDate atDay(int dayOfMonth)

Combines this year-month with a day-of-month to create a LocalDate.

3 LocalDate atEndOfMonth()

Returns a LocalDate at the end of the month..

4 int compareTo(YearMonth other)

Compares this year-month to another year-month.

5 boolean equals(Object otherYearMonth)

Checks if this YearMonth is equal to the specified YearMonth.

6 String format(DateTimeFormatter formatter)

Formats this year-month using the specified formatter.

7 static YearMonth from(TemporalAmount amount)

Obtains an instance of YearMonth from a temporal amount.

8 int get(TemporalField field)

Gets the value of the specified field from this year-month as an int.

9 long getLong(TemporalField field)

Gets the value of the requested unit as long.

10 Month getMonth()

Gets the month-of-year field using the Month enum.

11 int getMonthValue()

Gets the month-of-year field from 1 to 12.

12 int getYear()

Gets the year field.

13 int hashCode()

A hash code for this YearMonth.

14 boolean isAfter(YearMonth other)

Checks if this year-month is after the specified year-month.

15 boolean isBefore(YearMonth other)

Checks if this year-month is before the specified year-month.

16 boolean isLeapYear()

Checks if the year is a leap year, according to the ISO proleptic calendar system rules.

17 boolean isLeap(long year)

Checks if the year is a leap year, according to the ISO proleptic calendar system rules.

18 boolean isSupported(TemporalField field)

Checks if the specified field is supported.

19 boolean isSupported(TemporalUnit unit)

Checks if the specified unit is supported.

20 boolean isValidDay(int dayOfMonth)

Checks if the day-of-month is valid for this year-month.

21 int lengthOfMonth()

Returns the length of the month, taking account of the year.

22 int lengthOfYear()

Returns the length of the year.

23 YearMonth minus(long amountToSubtract, TemporalUnit unit)

Returns a copy of this year with the specified amount subtracted.

24 YearMonth minus(TemporalAmount amountToSubtract)

Returns a copy of this YearMonth with the specified YearMonth subtracted.

25 YearMonth minusMonths(long monthsToSubtract)

Returns a copy of this YearMonth with the specified month subtracted.

26 YearMonth minusYears(long yearsToSubtract)

Returns a copy of this YearMonth with the specified years subtracted.

27 static YearMonth now()

Obtains the current year-month from the system clock in the default time-zone.

28 static YearMonth now(Clock clock)

Obtains the current year-month from the specified clock.

29 static YearMonth now(ZoneId zone)

Obtains the current year-month from the system clock in the specified time-zone.

30 static YearMonth of(int years, int month)

Obtains an instance of YearMonth from a year and month.

31 static YearMonth of(int years, Month month)

Obtains an instance of YearMonth from a year and month.

32 static YearMonth parse(CharSequence text)

Obtains a YearMonth from a text string such as 2007-12.

33 static YearMonth parse(CharSequence text, DateTimeFormatter formatter)

Obtains an instance of YearMonth from a text string using a specific formatter.

34 YearMonth plus(long amountToAdd, TemporalUnit unit)

Returns a copy of this YearMonth with the specified YearMonth added.

35 YearMonth plus(TemporalAmount amountToAdd)

Returns a copy of this YearMonth with the specified YearMonth added.

36 YearMonth plusMonths(long monthsToAdd)

Returns a copy of this YearMonth with the specified months added.

37 YearMonth plusYears(long yearsToAdd)

Returns a copy of this YearMonth with the specified years added.

38 R> R query(TemporalQueryR> query)

Queries this year-month using the specified query.

39 ValueRange range(TemporalField field)

Gets the range of valid values for the specified field.

40 String toString()

Outputs this year-month as a String.

41 long until(Temporal endExclusive, TemporalUnit unit)

Calculates the amount of time until another year-month in terms of the specified unit.

42 YearMonth with(TemporalAdjuster adjuster)

Returns an adjusted copy of this year-month.

43 YearMonth with(TemporalField field, long newValue)

Returns a copy of this year-month with the specified field set to a new value.

44 YearMonth withMonth(int month)

Returns a copy of this YearMonth with the month-of-year altered.

45 YearMonth withYear(int year)

Returns a copy of this YearMonth with the year altered.

Methods inherited

This class inherits methods from the following classes −

  • Java.lang.Object


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java.time.ZonedDateTime Class

java.time.ZonedDateTime Class &-8211; this Article or News was published on this date:2019-05-12 15:31:34 kindly share it with friends if you find it helpful

java.time.ZonedDateTime Class


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Introduction

The java.time.ZonedDateTime class represents a date-time with a time-zone in the ISO-8601 calendar system, such as 2007-12-03T10:15:30+01:00 Europe/Paris.

Class declaration

Following is the declaration for java.time.ZonedDateTime class −

public final class ZonedDateTime
   extends Object
      implements Temporal, ChronoZonedDateTimeLocalDate>, Serializable

Class methods

Sr.No. Method & Description
1 boolean equals(Object obj)

Checks if this date-time is equal to another date-time.

2 String format(DateTimeFormatter formatter)

Formats this date-time using the specified formatter.

3 static ZonedDateTime from(TemporalAccessor temporal)

Obtains an instance of ZonedDateTime from a temporal object.

4 int get(TemporalField field)

Gets the value of the specified field from this date-time as an int.

5 int getDayOfMonth()

Gets the day-of-month field.

6 DayOfWeek getDayOfWeek()

Gets the day-of-week field, which is an enum DayOfWeek.

7 int getDayOfYear()

Gets the day-of-year field.

8 int getHour()

Gets the hour-of-day field.

9 long getLong(TemporalField field)

Gets the value of the specified field from this date-time as a long.

10 Month getMinute()

Gets the minute-of-hour field.

11 Month getMonth()

Gets the month-of-year field using the Month enum.

12 int getMonthValue()

Gets the month-of-year field from 1 to 12.

13 int getNano()

Gets the nano-of-second field.

14 ZoneOffset getOffset()

Gets the zone offset, such as &-8216;+01:00&-8217;.

15 int getSecond()

Gets the second-of-minute field.

16 int getYear()

Gets the year field.

17 ZoneId getZone()

Gets the time-zone, such as &-8216;Europe/Paris&-8217;.

18 int hashCode()

A hash code for this date-time.

19 boolean isSupported(TemporalField field)

Checks if the specified field is supported.

20 boolean isSupported(TemporalUnit unit)

Checks if the specified unit is supported.

21 ZonedDateTime minus(long amountToSubtract, TemporalUnit unit)

Returns a copy of this date-time with the specified amount subtracted.

22 ZonedDateTime minus(TemporalAmount amountToSubtract)

Returns a copy of this date-time with the specified amount subtracted.

23 ZonedDateTime minusDays(long daysToSubtract)

Returns a copy of this ZonedDateTime with the specified number of days subtracted.

24 ZonedDateTime minusHours(long hoursToSubtract)

Returns a copy of this ZonedDateTime with the specified number of hours subtracted.

25 ZonedDateTime minusMinutes(long minutesToSubtract)

Returns a copy of this ZonedDateTime with the specified number of minutes subtracted.

26 ZonedDateTime minusMonths(long monthsToSubtract)

Returns a copy of this ZonedDateTime with the specified number of months subtracted.

27 ZonedDateTime minusNanos(long nanos)

Returns a copy of this ZonedDateTime with the specified number of nanoseconds subtracted.

28 ZonedDateTime minusSeconds(long seconds)

Returns a copy of this ZonedDateTime with the specified number of seconds subtracted.

29 ZonedDateTime minusWeeks(long weeksToSubtract)

Returns a copy of this ZonedDateTime with the specified number of weeks subtracted.

30 ZonedDateTime minusYears(long yearsToSubtract)

Returns a copy of this ZonedDateTime with the specified number of years subtracted.

31 static ZonedDateTime now()

Obtains the current date-time from the system clock in the default time-zone.

32 static ZonedDateTime now(Clock clock)

Obtains the current date-time from the specified clock.

33 static ZonedDateTime now(ZoneId zone)

Obtains the current date-time from the system clock in the specified time-zone.

34 static ZonedDateTime of(int year, int month, int dayOfMonth, int hour, int minute, int second, int nanoOfSecond, ZoneId zone)

Obtains an instance of ZonedDateTime from year, month, day, hour, minute, second, nanosecond and time-zone.

35 static ZonedDateTime of(LocalDate date, LocalTime time, ZoneId zone)

Obtains an instance of ZonedDateTime from a date and time.

36 static ZonedDateTime of(LocalDateTime date, ZoneId zone)

Obtains an instance of ZonedDateTime from a local date-time.

37 static ZonedDateTime ofInstant(Instant instant, ZoneId zone)

Obtains an instance of ZonedDateTime from an Instant and zone ID.

38 static ZonedDateTime ofInstant(LocalDateTime localDateTime, ZoneOffset offset, ZoneId zone)

Obtains an instance of ZonedDateTime from the instant formed by combining the local date-time and offset.

39 static ZonedDateTime ofLocal(LocalDateTime localDateTime, ZoneId zone, ZoneOffset preferredOffset)

Obtains an instance of ZonedDateTime from a local date-time using the preferred offset if possible.

40 static ZonedDateTime ofStrict(LocalDateTime localDateTime, ZoneOffset offset, ZoneId zone)

Obtains an instance of ZonedDateTime strictly validating the combination of local date-time, offset and zone ID.

41 static ZonedDateTime parse(CharSequence text)

Obtains an instance of ZonedDateTime from a text string such as 2007-12-03T10:15:30+01:00[Europe/Paris].

42 static ZonedDateTime parse(CharSequence text, DateTimeFormatter formatter)

Obtains an instance of ZonedDateTime from a text string using a specific formatter.

43 ZonedDateTime plus(long amountToAdd, TemporalUnit unit)

Returns a copy of this date-time with the specified amount added.

44 ZonedDateTime plus(TemporalAmount amountToAdd)

Returns a copy of this date-time with the specified amount added.

45 ZonedDateTime plusDays(long daysToAdd)

Returns a copy of this ZonedDateTime with the specified number of days added.

46 ZonedDateTime plusHours(long hoursToAdd)

Returns a copy of this ZonedDateTime with the specified number of hours added.

47 ZonedDateTime plusMinutes(long minutesToAdd)

Returns a copy of this ZonedDateTime with the specified number of minutes added.

48 ZonedDateTime plusMonths(long monthsToAdd)

Returns a copy of this ZonedDateTime with the specified number of months added.

49 ZonedDateTime plusNanos(long nanos)

Returns a copy of this ZonedDateTime with the specified number of nanoseconds added.

50 ZonedDateTime plusSeconds(long seconds)

Returns a copy of this ZonedDateTime with the specified number of seconds added.

51 ZonedDateTime plusWeeks(long weeksToAdd)

Returns a copy of this ZonedDateTime with the specified number of weeks added.

52 ZonedDateTime plusYears(long yearsToAdd)

Returns a copy of this ZonedDateTime with the specified number of years added.

53 R> R query(TemporalQueryR> query)

Queries this date-time using the specified query.

54 ValueRange range(TemporalField field)

Gets the range of valid values for the specified field.

55 LocalDate toLocalDate()

Gets the LocalDate part of this date-time.

56 LocalTime toLocalTime()

Gets the LocalTime part of this date-time.

57 OffsetDateTime toOffsetDateTime()

Converts this date-time to an OffsetDateTime.

58 String toString()

Outputs this date as a String, such as 2007-12-03T10:15:30+01:00[Europe/Paris].

59 ZonedDateTime truncatedTo(TemporalUnit unit)

Returns a copy of this ZonedDateTime with the time truncated.

60 long until(Temporal endExclusive, TemporalUnit unit)

Calculates the amount of time until another date-time in terms of the specified unit.

61 ZonedDateTime with(TemporalAdjuster adjuster)

Returns an adjusted copy of this date-time.

62 ZonedDateTime with(TemporalField field, long newValue)

Returns a copy of this date-time with the specified field set to a new value.

63 ZonedDateTime withDayOfMonth(int dayOfMonth)

Returns a copy of this ZonedDateTime with the day-of-month altered.

64 ZonedDateTime withDayOfYear(int dayOfYear)

Returns a copy of this ZonedDateTime with the day-of-year altered.

65 ZonedDateTime withEarlierOffsetAtOverlap()

Returns a copy of this date-time changing the zone offset to the earlier of the two valid offsets at a local time-line overlap.

66 ZonedDateTime withFixedOffsetZone()

Returns a copy of this date-time with the zone ID set to the offset.

67 ZonedDateTime withHour(int hour)

Returns a copy of this ZonedDateTime with the hour-of-day altered.

68 ZonedDateTime withLaterOffsetAtOverlap()

Returns a copy of this date-time changing the zone offset to the later of the two valid offsets at a local time-line overlap.

69 ZonedDateTime withMinute(int minute)

Returns a copy of this ZonedDateTime with the minute-of-hour altered.

70 ZonedDateTime withMonth(int month)

Returns a copy of this ZonedDateTime with the month-of-year altered.

71 ZonedDateTime withNano(int nanoOfSecond)

Returns a copy of this ZonedDateTime with the nano-of-second altered.

72 ZonedDateTime withSecond(int second)

Returns a copy of this ZonedDateTime with the second-of-minute altered.

73 ZonedDateTime withYear(int year)

Returns a copy of this ZonedDateTime with the year altered.

74 ZonedDateTime withZoneSameInstant(ZoneId zone)

Returns a copy of this date-time with a different time-zone, retaining the instant.

75 ZonedDateTime withZoneSameLocal(ZoneId zone)

Returns a copy of this date-time with a different time-zone, retaining the local date-time if possible.

Methods inherited

This class inherits methods from the following classes −

  • Java.lang.Object


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java.time &-8211; Year

java.time &-8211; YearMonth

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java.time &-8211; Month

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