Gets the ID of the chronology. !(p) The ID uniquely identifies the {@code Chronology}. It can be used to lookup the {@code Chronology} using {@link #of(string)}.
@return the chronology ID, not null @see #getCalendarType()
See Implementation
Gets the ID of the chronology. !(p) The ID uniquely identifies the {@code Chronology}. It can be used to lookup the {@code Chronology} using {@link #of(string)}.
@return the chronology ID, not null @see #getCalendarType()