104  * <p>
 105  * <b>Note that years in the ISO chronology only align with years in the
 106  * Gregorian-Julian system for modern years. Parts of Russia did not switch to the
 107  * modern Gregorian/ISO rules until 1920.
 108  * As such, historical years must be treated with caution.</b>
 109  * <p>
 110  * This class does not store or represent a month, day, time or time-zone.
 111  * For example, the value "2007" can be stored in a {@code Year}.
 112  * <p>
 113  * Years represented by this class follow the ISO-8601 standard and use
 114  * the proleptic numbering system. Year 1 is preceded by year 0, then by year -1.
 115  * <p>
 116  * The ISO-8601 calendar system is the modern civil calendar system used today
 117  * in most of the world. It is equivalent to the proleptic Gregorian calendar
 118  * system, in which today's rules for leap years are applied for all time.
 119  * For most applications written today, the ISO-8601 rules are entirely suitable.
 120  * However, any application that makes use of historical dates, and requires them
 121  * to be accurate will find the ISO-8601 approach unsuitable.
 122  *
 123  * <p>
 124  * This is a <a href="{@docRoot}/java/lang/doc-files/ValueBased.html">value-based</a>
 125  * class; use of identity-sensitive operations (including reference equality
 126  * ({@code ==}), identity hash code, or synchronization) on instances of
 127  * {@code Year} may have unpredictable results and should be avoided.
 128  * The {@code equals} method should be used for comparisons.
 129  *
 130  * @implSpec
 131  * This class is immutable and thread-safe.
 132  *
 133  * @since 1.8
 134  */
 135 public final class Year
 136         implements Temporal, TemporalAdjuster, Comparable<Year>, Serializable {
 137 
 138     /**
 139      * The minimum supported year, '-999,999,999'.
 140      */
 141     public static final int MIN_VALUE = -999_999_999;
 142     /**
 143      * The maximum supported year, '+999,999,999'.
 144      */

 104  * <p>
 105  * <b>Note that years in the ISO chronology only align with years in the
 106  * Gregorian-Julian system for modern years. Parts of Russia did not switch to the
 107  * modern Gregorian/ISO rules until 1920.
 108  * As such, historical years must be treated with caution.</b>
 109  * <p>
 110  * This class does not store or represent a month, day, time or time-zone.
 111  * For example, the value "2007" can be stored in a {@code Year}.
 112  * <p>
 113  * Years represented by this class follow the ISO-8601 standard and use
 114  * the proleptic numbering system. Year 1 is preceded by year 0, then by year -1.
 115  * <p>
 116  * The ISO-8601 calendar system is the modern civil calendar system used today
 117  * in most of the world. It is equivalent to the proleptic Gregorian calendar
 118  * system, in which today's rules for leap years are applied for all time.
 119  * For most applications written today, the ISO-8601 rules are entirely suitable.
 120  * However, any application that makes use of historical dates, and requires them
 121  * to be accurate will find the ISO-8601 approach unsuitable.
 122  *
 123  * <p>
 124  * This is a <a href="{@docRoot}/java.base/java/lang/doc-files/ValueBased.html">value-based</a>
 125  * class; use of identity-sensitive operations (including reference equality
 126  * ({@code ==}), identity hash code, or synchronization) on instances of
 127  * {@code Year} may have unpredictable results and should be avoided.
 128  * The {@code equals} method should be used for comparisons.
 129  *
 130  * @implSpec
 131  * This class is immutable and thread-safe.
 132  *
 133  * @since 1.8
 134  */
 135 public final class Year
 136         implements Temporal, TemporalAdjuster, Comparable<Year>, Serializable {
 137 
 138     /**
 139      * The minimum supported year, '-999,999,999'.
 140      */
 141     public static final int MIN_VALUE = -999_999_999;
 142     /**
 143      * The maximum supported year, '+999,999,999'.
 144      */