类层次结构
- java.lang.Object 
       - java.time.chrono.AbstractChronology (implements java.time.chrono.Chronology) 
         - java.time.chrono.HijrahChronology (implements java.io.Serializable)
- java.time.chrono.IsoChronology (implements java.io.Serializable)
- java.time.chrono.JapaneseChronology (implements java.io.Serializable)
- java.time.chrono.MinguoChronology (implements java.io.Serializable)
- java.time.chrono.ThaiBuddhistChronology (implements java.io.Serializable)
 
- java.time.chrono.HijrahDate (implements java.time.chrono.ChronoLocalDate, java.io.Serializable)
- java.time.chrono.JapaneseDate (implements java.time.chrono.ChronoLocalDate, java.io.Serializable)
- java.time.chrono.JapaneseEra (implements java.time.chrono.Era, java.io.Serializable)
- java.time.chrono.MinguoDate (implements java.time.chrono.ChronoLocalDate, java.io.Serializable)
- java.time.chrono.ThaiBuddhistDate (implements java.time.chrono.ChronoLocalDate, java.io.Serializable)
 
- java.time.chrono.AbstractChronology (implements java.time.chrono.Chronology) 
         
Interface Hierarchy
- java.lang.Comparable<T> 
       - java.time.chrono.ChronoLocalDate (also extends java.time.temporal.Temporal, java.time.temporal.TemporalAdjuster)
- java.time.chrono.ChronoLocalDateTime<D> (also extends java.time.temporal.Temporal, java.time.temporal.TemporalAdjuster)
- java.time.chrono.Chronology
- java.time.chrono.ChronoZonedDateTime<D> (also extends java.time.temporal.Temporal)
 
- java.time.temporal.TemporalAccessor 
       - java.time.chrono.Era (also extends java.time.temporal.TemporalAdjuster)
- java.time.temporal.Temporal 
         - java.time.chrono.ChronoLocalDate (also extends java.lang.Comparable<T>, java.time.temporal.TemporalAdjuster)
- java.time.chrono.ChronoLocalDateTime<D> (also extends java.lang.Comparable<T>, java.time.temporal.TemporalAdjuster)
- java.time.chrono.ChronoZonedDateTime<D> (also extends java.lang.Comparable<T>)
 
 
- java.time.temporal.TemporalAdjuster 
       - java.time.chrono.ChronoLocalDate (also extends java.lang.Comparable<T>, java.time.temporal.Temporal)
- java.time.chrono.ChronoLocalDateTime<D> (also extends java.lang.Comparable<T>, java.time.temporal.Temporal)
- java.time.chrono.Era (also extends java.time.temporal.TemporalAccessor)
 
- java.time.temporal.TemporalAmount 
       - java.time.chrono.ChronoPeriod
 
Enum Hierarchy
- java.lang.Object 
       - java.lang.Enum<E> (implements java.lang.Comparable<T>, java.io.Serializable)