public final class JapaneseEra extends Object implements Era, Serializable
An era in the Japanese Imperial calendar system.
This class defines the valid eras for the Japanese chronology. Japan introduced the Gregorian calendar starting with Meiji 6. Only Meiji and later eras are supported; dates before Meiji 6, January 1 are not supported.
public static final JapaneseEra MEIJI
The singleton instance for the 'Meiji' era (1868-01-01 - 1912-07-29) which has the value -1.
public static final JapaneseEra TAISHO
The singleton instance for the 'Taisho' era (1912-07-30 - 1926-12-24) which has the value 0.
public static final JapaneseEra SHOWA
The singleton instance for the 'Showa' era (1926-12-25 - 1989-01-07) which has the value 1.
public static final JapaneseEra HEISEI
The singleton instance for the 'Heisei' era (1989-01-08 - current) which has the value 2.
public static JapaneseEra of(int japaneseEra)
Obtains an instance of JapaneseEra from an int value.
The SHOWA era that contains 1970-01-01 (ISO calendar system) has the value 1 Later era is numbered 2 (HEISEI). Earlier eras are numbered 0 (TAISHO), -1 (MEIJI), only Meiji and later eras are supported.
japaneseEra - the era to representJapaneseEra singleton, not nullDateTimeException - if the value is invalidpublic static JapaneseEra valueOf(String japaneseEra)
Returns the JapaneseEra with the name.
The string must match exactly the name of the era. (Extraneous whitespace characters are not permitted.)
japaneseEra - the japaneseEra name; non-nullJapaneseEra singleton, never nullIllegalArgumentException - if there is not JapaneseEra with the specified namepublic static JapaneseEra[] values()
Returns an array of JapaneseEras.
This method may be used to iterate over the JapaneseEras as follows:
for (JapaneseEra c : JapaneseEra.values())
System.out.println(c);
public int getValue()
Gets the numeric era int value.
The SHOWA era that contains 1970-01-01 (ISO calendar system) has the value 1. Later eras are numbered from 2 (HEISEI). Earlier eras are numbered 0 (TAISHO), -1 (MEIJI)).
public ValueRange range(TemporalField 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 era 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 a ChronoField then the query is implemented here. The ERA field returns the range. 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.
The range of valid Japanese eras can change over time due to the nature of the Japanese calendar system.
range in interface Era
range in interface TemporalAccessor
field - the field to query the range for, not nullDateTimeException - if the range for the field cannot be obtainedUnsupportedTemporalTypeException - if the unit is not supportedpublic String toString()
Description copied from class: Object
Returns a string representation of the object. In general, the toString method returns a string that "textually represents" this object. The result should be a concise but informative representation that is easy for a person to read. It is recommended that all subclasses override this method.
The toString method for class Object returns a string consisting of the name of the class of which the object is an instance, the at-sign character `@', and the unsigned hexadecimal representation of the hash code of the object. In other words, this method returns a string equal to the value of:
getClass().getName() + '@' + Integer.toHexString(hashCode())
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