public final class JapaneseEra extends Object implements Era, Serializable
This class defines the valid eras for the Japanese chronology. Only Meiji (1868-09-08 - 1912-07-29) and later eras are supported. Japan introduced the Gregorian calendar since Meiji 6. The dates between Meiji 1 - 5 are not historically correct. The older eras are recognized as Seireki (Western calendar) era, and the year of era of Seireki is proleptic Gregorian year. (The Julian to Gregorian transition is not supported.)
|Modifier and Type||Field and Description|
The singleton instance for the 'Heisei' era (1989-01-08 - current) which has the value 2.
The singleton instance for the 'Meiji' era (1868-09-08 - 1912-07-29) which has the value -1.
The singleton instance for the before Meiji era ( - 1868-09-07) which has the value -999.
The singleton instance for the 'Showa' era (1926-12-25 - 1989-01-07) which has the value 1.
The singleton instance for the 'Taisho' era (1912-07-30 - 1926-12-24) which has the value 0.
|Modifier and Type||Method and Description|
Gets the numeric era
Obtains an instance of
Gets the range of valid values for the specified field.
Returns a string representation of the object.
Returns an array of JapaneseEras.
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
adjustInto, get, getDisplayName, getLong, isSupported, query
public static final JapaneseEra SEIREKI
public static final JapaneseEra MEIJI
public static final JapaneseEra TAISHO
public static final JapaneseEra SHOWA
public static final JapaneseEra HEISEI
public static JapaneseEra of(int japaneseEra)
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 (
MEIJI), only Meiji and later eras are supported. The prior to Meiji,
SEIREKI is used.
japaneseEra- the era to represent
JapaneseErasingleton, not null
DateTimeException- if the value is invalid
public static JapaneseEra valueOf(String japaneseEra)
JapaneseErawith the name.
The string must match exactly the name of the era. (Extraneous whitespace characters are not permitted.)
japaneseEra- the japaneseEra name; non-null
JapaneseErasingleton, never null
IllegalArgumentException- if there is not JapaneseEra with the specified name
public static JapaneseEra values()
This method may be used to iterate over the JapaneseEras as follows:
for (JapaneseEra c : JapaneseEra.values()) System.out.println(c);
public int getValue()
public ValueRange range(TemporalField 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.
ERA field returns the range.
ChronoField instances will throw an
If the field is not a
ChronoField, then the result of this method
is obtained by invoking
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.
field- the field to query the range for, not null
DateTimeException- if the range for the field cannot be obtained
UnsupportedTemporalTypeException- if the unit is not supported
public String toString()
toStringmethod 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.
toString method for class
returns a string consisting of the name of the class of which the
object is an instance, the at-sign character `
the unsigned hexadecimal representation of the hash code of the
object. In other words, this method returns a string equal to the
getClass().getName() + '@' + Integer.toHexString(hashCode())
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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