問題描述
Oracle 文檔 http://docs.oracle.com/javase/6/docs/technotes/guides/intl/calendar.doc.html 聲明 Java 支持 3 種日歷系統:公歷、日本帝國和泰國佛教.Java 是否支持儒略歷?
Oracle docs http://docs.oracle.com/javase/6/docs/technotes/guides/intl/calendar.doc.html states that Java supports 3 calendar systems: Gregorian, Japanese Imperial and Thai Buddhist. Does Java support Julian calendar?
推薦答案
是的.
來自 GregorianCalendar 的文檔:
From the doc of GregorianCalendar:
GregorianCalendar 是一種混合日歷，同時支持儒略歷和公歷系統，支持單一不連續性，默認情況下對應于公歷日期公歷開始制定(1582 年 10 月 15 日)國家，后來在其他國家).截止日期可能會由調用者通過調用 setGregorianChange().
GregorianCalendar is a hybrid calendar that supports both the Julian and Gregorian calendar systems with the support of a single discontinuity, which corresponds by default to the Gregorian date when the Gregorian calendar was instituted (October 15, 1582 in some countries, later in others). The cutover date may be changed by the caller by calling setGregorianChange().
使用 setGregorianChange 來改變它.
public void setGregorianChange(Date date) 設置 GregorianCalendar改變日期.這是從 Julian 轉換到發生公歷日期.默認值為 1582 年 10 月 15 日(公歷).在此之前，日期將采用儒略歷.獲得一個純儒略歷，將更改日期設置為 Date(Long.MAX_VALUE).到獲取純公歷，將更改日期設置為日期(Long.MIN_VALUE).
public void setGregorianChange(Date date) Sets the GregorianCalendar change date. This is the point when the switch from Julian dates to Gregorian dates occurred. Default is October 15, 1582 (Gregorian). Previous to this, dates will be in the Julian calendar. To obtain a pure Julian calendar, set the change date to Date(Long.MAX_VALUE). To obtain a pure Gregorian calendar, set the change date to Date(Long.MIN_VALUE).
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