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	/*
	* Copyright (c) 2012, 2015, Oracle and/or its affiliates. All rights reserved.
	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
	*
	* This code is free software; you can redistribute it and/or modify it
	* under the terms of the GNU General Public License version 2 only, as
	* published by the Free Software Foundation. Oracle designates this
	* particular file as subject to the "Classpath" exception as provided
	* by Oracle in the LICENSE file that accompanied this code.
	*
	* This code is distributed in the hope that it will be useful, but WITHOUT
	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	* version 2 for more details (a copy is included in the LICENSE file that
	* accompanied this code).
	*
	* You should have received a copy of the GNU General Public License version
	* 2 along with this work; if not, write to the Free Software Foundation,
	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
	*
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	/*
	* This file is available under and governed by the GNU General Public
	* License version 2 only, as published by the Free Software Foundation.
	* However, the following notice accompanied the original version of this
	* file:
	*
	* Copyright (c) 2007-2012, Stephen Colebourne & Michael Nascimento Santos
	*
	* All rights reserved.
	*
	* Redistribution and use in source and binary forms, with or without
	* modification, are permitted provided that the following conditions are met:
	*
	* * Redistributions of source code must retain the above copyright notice,
	* this list of conditions and the following disclaimer.
	*
	* * Redistributions in binary form must reproduce the above copyright notice,
	* this list of conditions and the following disclaimer in the documentation
	* and/or other materials provided with the distribution.
	*
	* * Neither the name of JSR-310 nor the names of its contributors
	* may be used to endorse or promote products derived from this software
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	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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	package java.time;

	import static java.time.temporal.ChronoField.DAY_OF_MONTH;
	import static java.time.temporal.ChronoField.MONTH_OF_YEAR;

	import java.io.DataInput;
	import java.io.DataOutput;
	import java.io.IOException;
	import java.io.InvalidObjectException;
	import java.io.ObjectInputStream;
	import java.io.Serializable;
	import java.time.chrono.Chronology;
	import java.time.chrono.IsoChronology;
	import java.time.format.DateTimeFormatter;
	import java.time.format.DateTimeFormatterBuilder;
	import java.time.format.DateTimeParseException;
	import java.time.temporal.ChronoField;
	import java.time.temporal.Temporal;
	import java.time.temporal.TemporalAccessor;
	import java.time.temporal.TemporalAdjuster;
	import java.time.temporal.TemporalField;
	import java.time.temporal.TemporalQueries;
	import java.time.temporal.TemporalQuery;
	import java.time.temporal.UnsupportedTemporalTypeException;
	import java.time.temporal.ValueRange;
	import java.util.Objects;

	/**
	* A month-day in the ISO-8601 calendar system, such as {@code --12-03}.
	* <p>
	* {@code MonthDay} is an immutable date-time object that represents the combination
	* of a month and day-of-month. Any field that can be derived from a month and day,
	* such as quarter-of-year, can be obtained.
	* <p>
	* This class does not store or represent a year, time or time-zone.
	* For example, the value "December 3rd" can be stored in a {@code MonthDay}.
	* <p>
	* Since a {@code MonthDay} does not possess a year, the leap day of
	* February 29th is considered valid.
	* <p>
	* This class implements {@link TemporalAccessor} rather than {@link Temporal}.
	* This is because it is not possible to define whether February 29th is valid or not
	* without external information, preventing the implementation of plus/minus.
	* Related to this, {@code MonthDay} only provides access to query and set the fields
	* {@code MONTH_OF_YEAR} and {@code DAY_OF_MONTH}.
	* <p>
	* The ISO-8601 calendar system is the modern civil calendar system used today
	* in most of the world. It is equivalent to the proleptic Gregorian calendar
	* system, in which today's rules for leap years are applied for all time.
	* For most applications written today, the ISO-8601 rules are entirely suitable.
	* However, any application that makes use of historical dates, and requires them
	* to be accurate will find the ISO-8601 approach unsuitable.
	*
	* <p>
	* This is a <a href="{@docRoot}/java/lang/doc-files/ValueBased.html">value-based</a>
	* class; use of identity-sensitive operations (including reference equality
	* ({@code ==}), identity hash code, or synchronization) on instances of
	* {@code MonthDay} may have unpredictable results and should be avoided.
	* The {@code equals} method should be used for comparisons.
	*
	* @implSpec
	* This class is immutable and thread-safe.
	*
	* @since 1.8
	*/
	public final class MonthDay
	implements TemporalAccessor, TemporalAdjuster, Comparable<MonthDay>, Serializable {

	/**
	* Serialization version.
	*/
	private static final long serialVersionUID = -939150713474957432L;
	/**
	* Parser.
	*/
	private static final DateTimeFormatter PARSER = new DateTimeFormatterBuilder()
	.appendLiteral("--")
	.appendValue(MONTH_OF_YEAR, 2)
	.appendLiteral('-')
	.appendValue(DAY_OF_MONTH, 2)
	.toFormatter();

	/**
	* The month-of-year, not null.
	*/
	private final int month;
	/**
	* The day-of-month.
	*/
	private final int day;

	//-----------------------------------------------------------------------
	/**
	* Obtains the current month-day from the system clock in the default time-zone.
	* <p>
	* This will query the {@link Clock#systemDefaultZone() system clock} in the default
	* time-zone to obtain the current month-day.
	* <p>
	* Using this method will prevent the ability to use an alternate clock for testing
	* because the clock is hard-coded.
	*
	* @return the current month-day using the system clock and default time-zone, not null
	*/
	public static MonthDay now() {
	return now(Clock.systemDefaultZone());
	}

	/**
	* Obtains the current month-day from the system clock in the specified time-zone.
	* <p>
	* This will query the {@link Clock#system(ZoneId) system clock} to obtain the current month-day.
	* Specifying the time-zone avoids dependence on the default time-zone.
	* <p>
	* Using this method will prevent the ability to use an alternate clock for testing
	* because the clock is hard-coded.
	*
	* @param zone the zone ID to use, not null
	* @return the current month-day using the system clock, not null
	*/
	public static MonthDay now(ZoneId zone) {
	return now(Clock.system(zone));
	}

	/**
	* Obtains the current month-day from the specified clock.
	* <p>
	* This will query the specified clock to obtain the current month-day.
	* Using this method allows the use of an alternate clock for testing.
	* The alternate clock may be introduced using {@link Clock dependency injection}.
	*
	* @param clock the clock to use, not null
	* @return the current month-day, not null
	*/
	public static MonthDay now(Clock clock) {
	final LocalDate now = LocalDate.now(clock); // called once
	return MonthDay.of(now.getMonth(), now.getDayOfMonth());
	}

	//-----------------------------------------------------------------------
	/**
	* Obtains an instance of {@code MonthDay}.
	* <p>
	* The day-of-month must be valid for the month within a leap year.
	* Hence, for February, day 29 is valid.
	* <p>
	* For example, passing in April and day 31 will throw an exception, as
	* there can never be April 31st in any year. By contrast, passing in
	* February 29th is permitted, as that month-day can sometimes be valid.
	*
	* @param month the month-of-year to represent, not null
	* @param dayOfMonth the day-of-month to represent, from 1 to 31
	* @return the month-day, not null
	* @throws DateTimeException if the value of any field is out of range,
	* or if the day-of-month is invalid for the month
	*/
	public static MonthDay of(Month month, int dayOfMonth) {
	Objects.requireNonNull(month, "month");
	DAY_OF_MONTH.checkValidValue(dayOfMonth);
	if (dayOfMonth > month.maxLength()) {
	throw new DateTimeException("Illegal value for DayOfMonth field, value " + dayOfMonth +
	" is not valid for month " + month.name());
	}
	return new MonthDay(month.getValue(), dayOfMonth);
	}

	/**
	* Obtains an instance of {@code MonthDay}.
	* <p>
	* The day-of-month must be valid for the month within a leap year.
	* Hence, for month 2 (February), day 29 is valid.
	* <p>
	* For example, passing in month 4 (April) and day 31 will throw an exception, as
	* there can never be April 31st in any year. By contrast, passing in
	* February 29th is permitted, as that month-day can sometimes be valid.
	*
	* @param month the month-of-year to represent, from 1 (January) to 12 (December)
	* @param dayOfMonth the day-of-month to represent, from 1 to 31
	* @return the month-day, not null
	* @throws DateTimeException if the value of any field is out of range,
	* or if the day-of-month is invalid for the month
	*/
	public static MonthDay of(int month, int dayOfMonth) {
	return of(Month.of(month), dayOfMonth);
	}

	//-----------------------------------------------------------------------
	/**
	* Obtains an instance of {@code MonthDay} from a temporal object.
	* <p>
	* This obtains a month-day based on the specified temporal.
	* A {@code TemporalAccessor} represents an arbitrary set of date and time information,
	* which this factory converts to an instance of {@code MonthDay}.
	* <p>
	* The conversion extracts the {@link ChronoField#MONTH_OF_YEAR MONTH_OF_YEAR} and
	* {@link ChronoField#DAY_OF_MONTH DAY_OF_MONTH} fields.
	* The extraction is only permitted if the temporal object has an ISO
	* chronology, or can be converted to a {@code LocalDate}.
	* <p>
	* This method matches the signature of the functional interface {@link TemporalQuery}
	* allowing it to be used as a query via method reference, {@code MonthDay::from}.
	*
	* @param temporal the temporal object to convert, not null
	* @return the month-day, not null
	* @throws DateTimeException if unable to convert to a {@code MonthDay}
	*/
	public static MonthDay from(TemporalAccessor temporal) {
	if (temporal instanceof MonthDay) {
	return (MonthDay) temporal;
	}
	try {
	if (IsoChronology.INSTANCE.equals(Chronology.from(temporal)) == false) {
	temporal = LocalDate.from(temporal);
	}
	return of(temporal.get(MONTH_OF_YEAR), temporal.get(DAY_OF_MONTH));
	} catch (DateTimeException ex) {
	throw new DateTimeException("Unable to obtain MonthDay from TemporalAccessor: " +
	temporal + " of type " + temporal.getClass().getName(), ex);
	}
	}

	//-----------------------------------------------------------------------
	/**
	* Obtains an instance of {@code MonthDay} from a text string such as {@code --12-03}.
	* <p>
	* The string must represent a valid month-day.
	* The format is {@code --MM-dd}.
	*
	* @param text the text to parse such as "--12-03", not null
	* @return the parsed month-day, not null
	* @throws DateTimeParseException if the text cannot be parsed
	*/
	public static MonthDay parse(CharSequence text) {
	return parse(text, PARSER);
	}

	/**
	* Obtains an instance of {@code MonthDay} from a text string using a specific formatter.
	* <p>
	* The text is parsed using the formatter, returning a month-day.
	*
	* @param text the text to parse, not null
	* @param formatter the formatter to use, not null
	* @return the parsed month-day, not null
	* @throws DateTimeParseException if the text cannot be parsed
	*/
	public static MonthDay parse(CharSequence text, DateTimeFormatter formatter) {
	Objects.requireNonNull(formatter, "formatter");
	return formatter.parse(text, MonthDay::from);
	}

	//-----------------------------------------------------------------------
	/**
	* Constructor, previously validated.
	*
	* @param month the month-of-year to represent, validated from 1 to 12
	* @param dayOfMonth the day-of-month to represent, validated from 1 to 29-31
	*/
	private MonthDay(int month, int dayOfMonth) {
	this.month = month;
	this.day = dayOfMonth;
	}

	//-----------------------------------------------------------------------
	/**
	* Checks if the specified field is supported.
	* <p>
	* This checks if this month-day can be queried for the specified field.
	* If false, then calling the {@link #range(TemporalField) range} and
	* {@link #get(TemporalField) get} methods will throw an exception.
	* <p>
	* If the field is a {@link ChronoField} then the query is implemented here.
	* The supported fields are:
	* <ul>
	* <li>{@code MONTH_OF_YEAR}
	* <li>{@code YEAR}
	* </ul>
	* All other {@code ChronoField} instances will return false.
	* <p>
	* If the field is not a {@code ChronoField}, then the result of this method
	* is obtained by invoking {@code TemporalField.isSupportedBy(TemporalAccessor)}
	* passing {@code this} as the argument.
	* Whether the field is supported is determined by the field.
	*
	* @param field the field to check, null returns false
	* @return true if the field is supported on this month-day, false if not
	*/
	@Override
	public boolean isSupported(TemporalField field) {
	if (field instanceof ChronoField) {
	return field == MONTH_OF_YEAR \|\| field == DAY_OF_MONTH;
	}
	return field != null && field.isSupportedBy(this);
	}

	/**
	* Gets the range of valid values for the specified field.
	* <p>
	* The range object expresses the minimum and maximum valid values for a field.
	* This month-day 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.
	* <p>
	* If the field is a {@link ChronoField} then the query is implemented here.
	* The {@link #isSupported(TemporalField) supported fields} will return
	* appropriate range instances.
	* All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}.
	* <p>
	* If the field is not a {@code ChronoField}, then the result of this method
	* is obtained by invoking {@code TemporalField.rangeRefinedBy(TemporalAccessor)}
	* passing {@code this} as the argument.
	* Whether the range can be obtained is determined by the field.
	*
	* @param field the field to query the range for, not null
	* @return the range of valid values for the field, not null
	* @throws DateTimeException if the range for the field cannot be obtained
	* @throws UnsupportedTemporalTypeException if the field is not supported
	*/
	@Override
	public ValueRange range(TemporalField field) {
	if (field == MONTH_OF_YEAR) {
	return field.range();
	} else if (field == DAY_OF_MONTH) {
	return ValueRange.of(1, getMonth().minLength(), getMonth().maxLength());
	}
	return TemporalAccessor.super.range(field);
	}

	/**
	* Gets the value of the specified field from this month-day as an {@code int}.
	* <p>
	* This queries this month-day 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.
	* <p>
	* If the field is a {@link ChronoField} then the query is implemented here.
	* The {@link #isSupported(TemporalField) supported fields} will return valid
	* values based on this month-day.
	* All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}.
	* <p>
	* If the field is not a {@code ChronoField}, then the result of this method
	* is obtained by invoking {@code TemporalField.getFrom(TemporalAccessor)}
	* passing {@code this} as the argument. Whether the value can be obtained,
	* and what the value represents, is determined by the field.
	*
	* @param field the field to get, not null
	* @return the value for the field
	* @throws DateTimeException if a value for the field cannot be obtained or
	* the value is outside the range of valid values for the field
	* @throws UnsupportedTemporalTypeException if the field is not supported or
	* the range of values exceeds an {@code int}
	* @throws ArithmeticException if numeric overflow occurs
	*/
	@Override // override for Javadoc
	public int get(TemporalField field) {
	return range(field).checkValidIntValue(getLong(field), field);
	}

	/**
	* Gets the value of the specified field from this month-day as a {@code long}.
	* <p>
	* This queries this month-day 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.
	* <p>
	* If the field is a {@link ChronoField} then the query is implemented here.
	* The {@link #isSupported(TemporalField) supported fields} will return valid
	* values based on this month-day.
	* All other {@code ChronoField} instances will throw an {@code UnsupportedTemporalTypeException}.
	* <p>
	* If the field is not a {@code ChronoField}, then the result of this method
	* is obtained by invoking {@code TemporalField.getFrom(TemporalAccessor)}
	* passing {@code this} as the argument. Whether the value can be obtained,
	* and what the value represents, is determined by the field.
	*
	* @param field the field to get, not null
	* @return the value for the field
	* @throws DateTimeException if a value for the field cannot be obtained
	* @throws UnsupportedTemporalTypeException if the field is not supported
	* @throws ArithmeticException if numeric overflow occurs
	*/
	@Override
	public long getLong(TemporalField field) {
	if (field instanceof ChronoField) {
	switch ((ChronoField) field) {
	// alignedDOW and alignedWOM not supported because they cannot be set in with()
	case DAY_OF_MONTH: return day;
	case MONTH_OF_YEAR: return month;
	}
	throw new UnsupportedTemporalTypeException("Unsupported field: " + field);
	}
	return field.getFrom(this);
	}

	//-----------------------------------------------------------------------
	/**
	* Gets the month-of-year field from 1 to 12.
	* <p>
	* This method returns the month as an {@code int} from 1 to 12.
	* Application code is frequently clearer if the enum {@link Month}
	* is used by calling {@link #getMonth()}.
	*
	* @return the month-of-year, from 1 to 12
	* @see #getMonth()
	*/
	public int getMonthValue() {
	return month;
	}

	/**
	* Gets the month-of-year field using the {@code Month} enum.
	* <p>
	* This method returns the enum {@link Month} for the month.
	* This avoids confusion as to what {@code int} values mean.
	* If you need access to the primitive {@code int} value then the enum
	* provides the {@link Month#getValue() int value}.
	*
	* @return the month-of-year, not null
	* @see #getMonthValue()
	*/
	public Month getMonth() {
	return Month.of(month);
	}

	/**
	* Gets the day-of-month field.
	* <p>
	* This method returns the primitive {@code int} value for the day-of-month.
	*
	* @return the day-of-month, from 1 to 31
	*/
	public int getDayOfMonth() {
	return day;
	}

	//-----------------------------------------------------------------------
	/**
	* Checks if the year is valid for this month-day.
	* <p>
	* This method checks whether this month and day and the input year form
	* a valid date. This can only return false for February 29th.
	*
	* @param year the year to validate
	* @return true if the year is valid for this month-day
	* @see Year#isValidMonthDay(MonthDay)
	*/
	public boolean isValidYear(int year) {
	return (day == 29 && month == 2 && Year.isLeap(year) == false) == false;
	}

	//-----------------------------------------------------------------------
	/**
	* Returns a copy of this {@code MonthDay} with the month-of-year altered.
	* <p>
	* This returns a month-day with the specified month.
	* If the day-of-month is invalid for the specified month, the day will
	* be adjusted to the last valid day-of-month.
	* <p>
	* This instance is immutable and unaffected by this method call.
	*
	* @param month the month-of-year to set in the returned month-day, from 1 (January) to 12 (December)
	* @return a {@code MonthDay} based on this month-day with the requested month, not null
	* @throws DateTimeException if the month-of-year value is invalid
	*/
	public MonthDay withMonth(int month) {
	return with(Month.of(month));
	}

	/**
	* Returns a copy of this {@code MonthDay} with the month-of-year altered.
	* <p>
	* This returns a month-day with the specified month.
	* If the day-of-month is invalid for the specified month, the day will
	* be adjusted to the last valid day-of-month.
	* <p>
	* This instance is immutable and unaffected by this method call.
	*
	* @param month the month-of-year to set in the returned month-day, not null
	* @return a {@code MonthDay} based on this month-day with the requested month, not null
	*/
	public MonthDay with(Month month) {
	Objects.requireNonNull(month, "month");
	if (month.getValue() == this.month) {
	return this;
	}
	int day = Math.min(this.day, month.maxLength());
	return new MonthDay(month.getValue(), day);
	}

	/**
	* Returns a copy of this {@code MonthDay} with the day-of-month altered.
	* <p>
	* This returns a month-day with the specified day-of-month.
	* If the day-of-month is invalid for the month, an exception is thrown.
	* <p>
	* This instance is immutable and unaffected by this method call.
	*
	* @param dayOfMonth the day-of-month to set in the return month-day, from 1 to 31
	* @return a {@code MonthDay} based on this month-day with the requested day, not null
	* @throws DateTimeException if the day-of-month value is invalid,
	* or if the day-of-month is invalid for the month
	*/
	public MonthDay withDayOfMonth(int dayOfMonth) {
	if (dayOfMonth == this.day) {
	return this;
	}
	return of(month, dayOfMonth);
	}

	//-----------------------------------------------------------------------
	/**
	* Queries this month-day using the specified query.
	* <p>
	* This queries this month-day using the specified query strategy object.
	* The {@code 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.
	* <p>
	* The result of this method is obtained by invoking the
	* {@link TemporalQuery#queryFrom(TemporalAccessor)} method on the
	* specified query passing {@code this} as the argument.
	*
	* @param <R> the type of the result
	* @param query the query to invoke, not null
	* @return the query result, null may be returned (defined by the query)
	* @throws DateTimeException if unable to query (defined by the query)
	* @throws ArithmeticException if numeric overflow occurs (defined by the query)
	*/
	@SuppressWarnings("unchecked")
	@Override
	public <R> R query(TemporalQuery<R> query) {
	if (query == TemporalQueries.chronology()) {
	return (R) IsoChronology.INSTANCE;
	}
	return TemporalAccessor.super.query(query);
	}

	/**
	* Adjusts the specified temporal object to have this month-day.
	* <p>
	* This returns a temporal object of the same observable type as the input
	* with the month and day-of-month changed to be the same as this.
	* <p>
	* The adjustment is equivalent to using {@link Temporal#with(TemporalField, long)}
	* twice, passing {@link ChronoField#MONTH_OF_YEAR} and
	* {@link ChronoField#DAY_OF_MONTH} as the fields.
	* If the specified temporal object does not use the ISO calendar system then
	* a {@code DateTimeException} is thrown.
	* <p>
	* In most cases, it is clearer to reverse the calling pattern by using
	* {@link Temporal#with(TemporalAdjuster)}:
	* <pre>
	* // these two lines are equivalent, but the second approach is recommended
	* temporal = thisMonthDay.adjustInto(temporal);
	* temporal = temporal.with(thisMonthDay);
	* </pre>
	* <p>
	* This instance is immutable and unaffected by this method call.
	*
	* @param temporal the target object to be adjusted, not null
	* @return the adjusted object, not null
	* @throws DateTimeException if unable to make the adjustment
	* @throws ArithmeticException if numeric overflow occurs
	*/
	@Override
	public Temporal adjustInto(Temporal temporal) {
	if (Chronology.from(temporal).equals(IsoChronology.INSTANCE) == false) {
	throw new DateTimeException("Adjustment only supported on ISO date-time");
	}
	temporal = temporal.with(MONTH_OF_YEAR, month);
	return temporal.with(DAY_OF_MONTH, Math.min(temporal.range(DAY_OF_MONTH).getMaximum(), day));
	}

	/**
	* Formats this month-day using the specified formatter.
	* <p>
	* This month-day will be passed to the formatter to produce a string.
	*
	* @param formatter the formatter to use, not null
	* @return the formatted month-day string, not null
	* @throws DateTimeException if an error occurs during printing
	*/
	public String format(DateTimeFormatter formatter) {
	Objects.requireNonNull(formatter, "formatter");
	return formatter.format(this);
	}

	//-----------------------------------------------------------------------
	/**
	* Combines this month-day with a year to create a {@code LocalDate}.
	* <p>
	* This returns a {@code LocalDate} formed from this month-day and the specified year.
	* <p>
	* A month-day of February 29th will be adjusted to February 28th in the resulting
	* date if the year is not a leap year.
	* <p>
	* This instance is immutable and unaffected by this method call.
	*
	* @param year the year to use, from MIN_YEAR to MAX_YEAR
	* @return the local date formed from this month-day and the specified year, not null
	* @throws DateTimeException if the year is outside the valid range of years
	*/
	public LocalDate atYear(int year) {
	return LocalDate.of(year, month, isValidYear(year) ? day : 28);
	}

	//-----------------------------------------------------------------------
	/**
	* Compares this month-day to another month-day.
	* <p>
	* The comparison is based first on value of the month, then on the value of the day.
	* It is "consistent with equals", as defined by {@link Comparable}.
	*
	* @param other the other month-day to compare to, not null
	* @return the comparator value, negative if less, positive if greater
	*/
	@Override
	public int compareTo(MonthDay other) {
	int cmp = (month - other.month);
	if (cmp == 0) {
	cmp = (day - other.day);
	}
	return cmp;
	}

	/**
	* Checks if this month-day is after the specified month-day.
	*
	* @param other the other month-day to compare to, not null
	* @return true if this is after the specified month-day
	*/
	public boolean isAfter(MonthDay other) {
	return compareTo(other) > 0;
	}

	/**
	* Checks if this month-day is before the specified month-day.
	*
	* @param other the other month-day to compare to, not null
	* @return true if this point is before the specified month-day
	*/
	public boolean isBefore(MonthDay other) {
	return compareTo(other) < 0;
	}

	//-----------------------------------------------------------------------
	/**
	* Checks if this month-day is equal to another month-day.
	* <p>
	* The comparison is based on the time-line position of the month-day within a year.
	*
	* @param obj the object to check, null returns false
	* @return true if this is equal to the other month-day
	*/
	@Override
	public boolean equals(Object obj) {
	if (this == obj) {
	return true;
	}
	if (obj instanceof MonthDay) {
	MonthDay other = (MonthDay) obj;
	return month == other.month && day == other.day;
	}
	return false;
	}

	/**
	* A hash code for this month-day.
	*
	* @return a suitable hash code
	*/
	@Override
	public int hashCode() {
	return (month << 6) + day;
	}

	//-----------------------------------------------------------------------
	/**
	* Outputs this month-day as a {@code String}, such as {@code --12-03}.
	* <p>
	* The output will be in the format {@code --MM-dd}:
	*
	* @return a string representation of this month-day, not null
	*/
	@Override
	public String toString() {
	return new StringBuilder(10).append("--")
	.append(month < 10 ? "0" : "").append(month)
	.append(day < 10 ? "-0" : "-").append(day)
	.toString();
	}

	//-----------------------------------------------------------------------
	/**
	* Writes the object using a
	* <a href="../../serialized-form.html#java.time.Ser">dedicated serialized form</a>.
	* @serialData
	* <pre>
	* out.writeByte(13); // identifies a MonthDay
	* out.writeByte(month);
	* out.writeByte(day);
	* </pre>
	*
	* @return the instance of {@code Ser}, not null
	*/
	private Object writeReplace() {
	return new Ser(Ser.MONTH_DAY_TYPE, this);
	}

	/**
	* Defend against malicious streams.
	*
	* @param s the stream to read
	* @throws InvalidObjectException always
	*/
	private void readObject(ObjectInputStream s) throws InvalidObjectException {
	throw new InvalidObjectException("Deserialization via serialization delegate");
	}

	void writeExternal(DataOutput out) throws IOException {
	out.writeByte(month);
	out.writeByte(day);
	}

	static MonthDay readExternal(DataInput in) throws IOException {
	byte month = in.readByte();
	byte day = in.readByte();
	return MonthDay.of(month, day);
	}

	}

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