(*from temporal)
Obtains an instance of Month from a temporal object.
This obtains a month based on the specified temporal. A TemporalAccessor represents an arbitrary set of date and time information, which this factory converts to an instance of Month.
The conversion extracts the MONTH_OF_YEAR field. The extraction is only permitted if the temporal object has an ISO chronology, or can be converted to a LocalDate.
This method matches the signature of the functional interface TemporalQuery allowing it to be used as a query via method reference, Month::from.
temporal - the temporal object to convert, not null - java.time.temporal.TemporalAccessor
returns: the month-of-year, not null - java.time.Month
throws: java.time.DateTimeException - if unable to convert to a Month
Obtains an instance of Month from a temporal object. This obtains a month based on the specified temporal. A TemporalAccessor represents an arbitrary set of date and time information, which this factory converts to an instance of Month. The conversion extracts the MONTH_OF_YEAR field. The extraction is only permitted if the temporal object has an ISO chronology, or can be converted to a LocalDate. This method matches the signature of the functional interface TemporalQuery allowing it to be used as a query via method reference, Month::from. temporal - the temporal object to convert, not null - `java.time.temporal.TemporalAccessor` returns: the month-of-year, not null - `java.time.Month` throws: java.time.DateTimeException - if unable to convert to a Month
(*of month)
Obtains an instance of Month from an int value.
Month is an enum representing the 12 months of the year. This factory allows the enum to be obtained from the int value. The int value follows the ISO-8601 standard, from 1 (January) to 12 (December).
month - the month-of-year to represent, from 1 (January) to 12 (December) - int
returns: the month-of-year, not null - java.time.Month
throws: java.time.DateTimeException - if the month-of-year is invalid
Obtains an instance of Month from an int value. Month is an enum representing the 12 months of the year. This factory allows the enum to be obtained from the int value. The int value follows the ISO-8601 standard, from 1 (January) to 12 (December). month - the month-of-year to represent, from 1 (January) to 12 (December) - `int` returns: the month-of-year, not null - `java.time.Month` throws: java.time.DateTimeException - if the month-of-year is invalid
(*value-of name)
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)
name - the name of the enum constant to be returned. - java.lang.String
returns: the enum constant with the specified name - java.time.Month
throws: java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.) name - the name of the enum constant to be returned. - `java.lang.String` returns: the enum constant with the specified name - `java.time.Month` throws: java.lang.IllegalArgumentException - if this enum type has no constant with the specified name
(*values)
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:
for (Month c : Month.values()) System.out.println(c);
returns: an array containing the constants of this enum type, in the order they are declared - java.time.Month[]
Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: for (Month c : Month.values()) System.out.println(c); returns: an array containing the constants of this enum type, in the order they are declared - `java.time.Month[]`
(adjust-into this temporal)
Adjusts the specified temporal object to have this month-of-year.
This returns a temporal object of the same observable type as the input with the month-of-year changed to be the same as this.
The adjustment is equivalent to using Temporal.with(TemporalField, long) passing ChronoField.MONTH_OF_YEAR as the field. If the specified temporal object does not use the ISO calendar system then a DateTimeException is thrown.
In most cases, it is clearer to reverse the calling pattern by using Temporal.with(TemporalAdjuster):
// these two lines are equivalent, but the second approach is recommended temporal = thisMonth.adjustInto(temporal); temporal = temporal.with(thisMonth);
For example, given a date in May, the following are output:
dateInMay.with(JANUARY); // four months earlier dateInMay.with(APRIL); // one months earlier dateInMay.with(MAY); // same date dateInMay.with(JUNE); // one month later dateInMay.with(DECEMBER); // seven months later
This instance is immutable and unaffected by this method call.
temporal - the target object to be adjusted, not null - java.time.temporal.Temporal
returns: the adjusted object, not null - java.time.temporal.Temporal
throws: java.time.DateTimeException - if unable to make the adjustment
Adjusts the specified temporal object to have this month-of-year. This returns a temporal object of the same observable type as the input with the month-of-year changed to be the same as this. The adjustment is equivalent to using Temporal.with(TemporalField, long) passing ChronoField.MONTH_OF_YEAR as the field. If the specified temporal object does not use the ISO calendar system then a DateTimeException is thrown. In most cases, it is clearer to reverse the calling pattern by using Temporal.with(TemporalAdjuster): // these two lines are equivalent, but the second approach is recommended temporal = thisMonth.adjustInto(temporal); temporal = temporal.with(thisMonth); For example, given a date in May, the following are output: dateInMay.with(JANUARY); // four months earlier dateInMay.with(APRIL); // one months earlier dateInMay.with(MAY); // same date dateInMay.with(JUNE); // one month later dateInMay.with(DECEMBER); // seven months later This instance is immutable and unaffected by this method call. temporal - the target object to be adjusted, not null - `java.time.temporal.Temporal` returns: the adjusted object, not null - `java.time.temporal.Temporal` throws: java.time.DateTimeException - if unable to make the adjustment
Enum Constant.
The singleton instance for the month of April with 30 days. This has the numeric value of 4.
type: java.time.Month
Enum Constant. The singleton instance for the month of April with 30 days. This has the numeric value of 4. type: java.time.Month
Enum Constant.
The singleton instance for the month of August with 31 days. This has the numeric value of 8.
type: java.time.Month
Enum Constant. The singleton instance for the month of August with 31 days. This has the numeric value of 8. type: java.time.Month
Enum Constant.
The singleton instance for the month of December with 31 days. This has the numeric value of 12.
type: java.time.Month
Enum Constant. The singleton instance for the month of December with 31 days. This has the numeric value of 12. type: java.time.Month
Enum Constant.
The singleton instance for the month of February with 28 days, or 29 in a leap year. This has the numeric value of 2.
type: java.time.Month
Enum Constant. The singleton instance for the month of February with 28 days, or 29 in a leap year. This has the numeric value of 2. type: java.time.Month
(first-day-of-year this leap-year)
Gets the day-of-year corresponding to the first day of this month.
This returns the day-of-year that this month begins on, using the leap year flag to determine the length of February.
leap-year - true if the length is required for a leap year - boolean
returns: the day of year corresponding to the first day of this month, from 1 to 336 - int
Gets the day-of-year corresponding to the first day of this month. This returns the day-of-year that this month begins on, using the leap year flag to determine the length of February. leap-year - true if the length is required for a leap year - `boolean` returns: the day of year corresponding to the first day of this month, from 1 to 336 - `int`
(first-month-of-quarter this)
Gets the month corresponding to the first month of this quarter.
The year can be divided into four quarters. This method returns the first month of the quarter for the base month. January, February and March return January. April, May and June return April. July, August and September return July. October, November and December return October.
returns: the first month of the quarter corresponding to this month, not null - java.time.Month
Gets the month corresponding to the first month of this quarter. The year can be divided into four quarters. This method returns the first month of the quarter for the base month. January, February and March return January. April, May and June return April. July, August and September return July. October, November and December return October. returns: the first month of the quarter corresponding to this month, not null - `java.time.Month`
(get this field)
Gets the value of the specified field from this month-of-year as an int.
This queries this month for the value of the specified field. The returned value will always be within the valid range of values for the field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.
If the field is MONTH_OF_YEAR then the value of the month-of-year, from 1 to 12, will be returned. All other ChronoField instances will throw an UnsupportedTemporalTypeException.
If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.getFrom(TemporalAccessor) passing this as the argument. Whether the value can be obtained, and what the value represents, is determined by the field.
field - the field to get, not null - java.time.temporal.TemporalField
returns: the value for the field, within the valid range of values - int
throws: java.time.DateTimeException - if a value for the field cannot be obtained or the value is outside the range of valid values for the field
Gets the value of the specified field from this month-of-year as an int. This queries this month for the value of the specified field. The returned value will always be within the valid range of values for the field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown. If the field is MONTH_OF_YEAR then the value of the month-of-year, from 1 to 12, will be returned. All other ChronoField instances will throw an UnsupportedTemporalTypeException. If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.getFrom(TemporalAccessor) passing this as the argument. Whether the value can be obtained, and what the value represents, is determined by the field. field - the field to get, not null - `java.time.temporal.TemporalField` returns: the value for the field, within the valid range of values - `int` throws: java.time.DateTimeException - if a value for the field cannot be obtained or the value is outside the range of valid values for the field
(get-display-name this style locale)
Gets the textual representation, such as 'Jan' or 'December'.
This returns the textual name used to identify the month-of-year, suitable for presentation to the user. The parameters control the style of the returned text and the locale.
If no textual mapping is found then the numeric value is returned.
style - the length of the text required, not null - java.time.format.TextStyle
locale - the locale to use, not null - java.util.Locale
returns: the text value of the month-of-year, not null - java.lang.String
Gets the textual representation, such as 'Jan' or 'December'. This returns the textual name used to identify the month-of-year, suitable for presentation to the user. The parameters control the style of the returned text and the locale. If no textual mapping is found then the numeric value is returned. style - the length of the text required, not null - `java.time.format.TextStyle` locale - the locale to use, not null - `java.util.Locale` returns: the text value of the month-of-year, not null - `java.lang.String`
(get-long this field)
Gets the value of the specified field from this month-of-year as a long.
This queries this month for the value of the specified field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown.
If the field is MONTH_OF_YEAR then the value of the month-of-year, from 1 to 12, will be returned. All other ChronoField instances will throw an UnsupportedTemporalTypeException.
If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.getFrom(TemporalAccessor) passing this as the argument. Whether the value can be obtained, and what the value represents, is determined by the field.
field - the field to get, not null - java.time.temporal.TemporalField
returns: the value for the field - long
throws: java.time.DateTimeException - if a value for the field cannot be obtained
Gets the value of the specified field from this month-of-year as a long. This queries this month for the value of the specified field. If it is not possible to return the value, because the field is not supported or for some other reason, an exception is thrown. If the field is MONTH_OF_YEAR then the value of the month-of-year, from 1 to 12, will be returned. All other ChronoField instances will throw an UnsupportedTemporalTypeException. If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.getFrom(TemporalAccessor) passing this as the argument. Whether the value can be obtained, and what the value represents, is determined by the field. field - the field to get, not null - `java.time.temporal.TemporalField` returns: the value for the field - `long` throws: java.time.DateTimeException - if a value for the field cannot be obtained
(get-value this)
Gets the month-of-year int value.
The values are numbered following the ISO-8601 standard, from 1 (January) to 12 (December).
returns: the month-of-year, from 1 (January) to 12 (December) - int
Gets the month-of-year int value. The values are numbered following the ISO-8601 standard, from 1 (January) to 12 (December). returns: the month-of-year, from 1 (January) to 12 (December) - `int`
Enum Constant.
The singleton instance for the month of January with 31 days. This has the numeric value of 1.
type: java.time.Month
Enum Constant. The singleton instance for the month of January with 31 days. This has the numeric value of 1. type: java.time.Month
Enum Constant.
The singleton instance for the month of July with 31 days. This has the numeric value of 7.
type: java.time.Month
Enum Constant. The singleton instance for the month of July with 31 days. This has the numeric value of 7. type: java.time.Month
Enum Constant.
The singleton instance for the month of June with 30 days. This has the numeric value of 6.
type: java.time.Month
Enum Constant. The singleton instance for the month of June with 30 days. This has the numeric value of 6. type: java.time.Month
(length this leap-year)
Gets the length of this month in days.
This takes a flag to determine whether to return the length for a leap year or not.
February has 28 days in a standard year and 29 days in a leap year. April, June, September and November have 30 days. All other months have 31 days.
leap-year - true if the length is required for a leap year - boolean
returns: the length of this month in days, from 28 to 31 - int
Gets the length of this month in days. This takes a flag to determine whether to return the length for a leap year or not. February has 28 days in a standard year and 29 days in a leap year. April, June, September and November have 30 days. All other months have 31 days. leap-year - true if the length is required for a leap year - `boolean` returns: the length of this month in days, from 28 to 31 - `int`
Enum Constant.
The singleton instance for the month of March with 31 days. This has the numeric value of 3.
type: java.time.Month
Enum Constant. The singleton instance for the month of March with 31 days. This has the numeric value of 3. type: java.time.Month
(max-length this)
Gets the maximum length of this month in days.
February has a maximum length of 29 days. April, June, September and November have 30 days. All other months have 31 days.
returns: the maximum length of this month in days, from 29 to 31 - int
Gets the maximum length of this month in days. February has a maximum length of 29 days. April, June, September and November have 30 days. All other months have 31 days. returns: the maximum length of this month in days, from 29 to 31 - `int`
Enum Constant.
The singleton instance for the month of May with 31 days. This has the numeric value of 5.
type: java.time.Month
Enum Constant. The singleton instance for the month of May with 31 days. This has the numeric value of 5. type: java.time.Month
(min-length this)
Gets the minimum length of this month in days.
February has a minimum length of 28 days. April, June, September and November have 30 days. All other months have 31 days.
returns: the minimum length of this month in days, from 28 to 31 - int
Gets the minimum length of this month in days. February has a minimum length of 28 days. April, June, September and November have 30 days. All other months have 31 days. returns: the minimum length of this month in days, from 28 to 31 - `int`
(minus this months)
Returns the month-of-year that is the specified number of months before this one.
The calculation rolls around the start of the year from January to December. The specified period may be negative.
This instance is immutable and unaffected by this method call.
months - the months to subtract, positive or negative - long
returns: the resulting month, not null - java.time.Month
Returns the month-of-year that is the specified number of months before this one. The calculation rolls around the start of the year from January to December. The specified period may be negative. This instance is immutable and unaffected by this method call. months - the months to subtract, positive or negative - `long` returns: the resulting month, not null - `java.time.Month`
Enum Constant.
The singleton instance for the month of November with 30 days. This has the numeric value of 11.
type: java.time.Month
Enum Constant. The singleton instance for the month of November with 30 days. This has the numeric value of 11. type: java.time.Month
Enum Constant.
The singleton instance for the month of October with 31 days. This has the numeric value of 10.
type: java.time.Month
Enum Constant. The singleton instance for the month of October with 31 days. This has the numeric value of 10. type: java.time.Month
(plus this months)
Returns the month-of-year that is the specified number of quarters after this one.
The calculation rolls around the end of the year from December to January. The specified period may be negative.
This instance is immutable and unaffected by this method call.
months - the months to add, positive or negative - long
returns: the resulting month, not null - java.time.Month
Returns the month-of-year that is the specified number of quarters after this one. The calculation rolls around the end of the year from December to January. The specified period may be negative. This instance is immutable and unaffected by this method call. months - the months to add, positive or negative - `long` returns: the resulting month, not null - `java.time.Month`
(query this query)
Queries this month-of-year using the specified query.
This queries this month-of-year using the specified query strategy object. The TemporalQuery object defines the logic to be used to obtain the result. Read the documentation of the query to understand what the result of this method will be.
The result of this method is obtained by invoking the TemporalQuery.queryFrom(TemporalAccessor) method on the specified query passing this as the argument.
query - the query to invoke, not null - java.time.temporal.TemporalQuery
returns: the query result, null may be returned (defined by the query) - <R> R
throws: java.time.DateTimeException - if unable to query (defined by the query)
Queries this month-of-year using the specified query. This queries this month-of-year using the specified query strategy object. The TemporalQuery object defines the logic to be used to obtain the result. Read the documentation of the query to understand what the result of this method will be. The result of this method is obtained by invoking the TemporalQuery.queryFrom(TemporalAccessor) method on the specified query passing this as the argument. query - the query to invoke, not null - `java.time.temporal.TemporalQuery` returns: the query result, null may be returned (defined by the query) - `<R> R` throws: java.time.DateTimeException - if unable to query (defined by the query)
(range this field)
Gets the range of valid values for the specified field.
The range object expresses the minimum and maximum valid values for a field. This month is used to enhance the accuracy of the returned range. If it is not possible to return the range, because the field is not supported or for some other reason, an exception is thrown.
If the field is MONTH_OF_YEAR then the range of the month-of-year, from 1 to 12, will be returned. All other ChronoField instances will throw an UnsupportedTemporalTypeException.
If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.rangeRefinedBy(TemporalAccessor) passing this as the argument. Whether the range can be obtained is determined by the field.
field - the field to query the range for, not null - java.time.temporal.TemporalField
returns: the range of valid values for the field, not null - java.time.temporal.ValueRange
throws: java.time.DateTimeException - if the range for the field cannot be obtained
Gets the range of valid values for the specified field. The range object expresses the minimum and maximum valid values for a field. This month is used to enhance the accuracy of the returned range. If it is not possible to return the range, because the field is not supported or for some other reason, an exception is thrown. If the field is MONTH_OF_YEAR then the range of the month-of-year, from 1 to 12, will be returned. All other ChronoField instances will throw an UnsupportedTemporalTypeException. If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.rangeRefinedBy(TemporalAccessor) passing this as the argument. Whether the range can be obtained is determined by the field. field - the field to query the range for, not null - `java.time.temporal.TemporalField` returns: the range of valid values for the field, not null - `java.time.temporal.ValueRange` throws: java.time.DateTimeException - if the range for the field cannot be obtained
Enum Constant.
The singleton instance for the month of September with 30 days. This has the numeric value of 9.
type: java.time.Month
Enum Constant. The singleton instance for the month of September with 30 days. This has the numeric value of 9. type: java.time.Month
(supported? this field)
Checks if the specified field is supported.
This checks if this month-of-year can be queried for the specified field. If false, then calling the range and get methods will throw an exception.
If the field is MONTH_OF_YEAR then this method returns true. All other ChronoField instances will return false.
If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.isSupportedBy(TemporalAccessor) passing this as the argument. Whether the field is supported is determined by the field.
field - the field to check, null returns false - java.time.temporal.TemporalField
returns: true if the field is supported on this month-of-year, false if not - boolean
Checks if the specified field is supported. This checks if this month-of-year can be queried for the specified field. If false, then calling the range and get methods will throw an exception. If the field is MONTH_OF_YEAR then this method returns true. All other ChronoField instances will return false. If the field is not a ChronoField, then the result of this method is obtained by invoking TemporalField.isSupportedBy(TemporalAccessor) passing this as the argument. Whether the field is supported is determined by the field. field - the field to check, null returns false - `java.time.temporal.TemporalField` returns: true if the field is supported on this month-of-year, false if not - `boolean`
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