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java.lang.Objectorg.jfree.date.AnnualDateRule
org.jfree.date.EasterSundayRule
An annual date rule for Easter (Sunday). The algorithm used here was obtained from a Calendar FAQ which can be found at:
http://www.tondering.dk/claus/calendar.html.
It is based on an algorithm by Oudin (1940) and quoted in "Explanatory Supplement to the Astronomical Almanac", P. Kenneth Seidelmann, editor.
Constructor Summary | |
EasterSundayRule()
Default constructor. |
Method Summary | |
SerialDate |
getDate(int year)
Returns the date of Easter Sunday for the given year. |
Methods inherited from class org.jfree.date.AnnualDateRule |
clone |
Methods inherited from class java.lang.Object |
equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public EasterSundayRule()
Method Detail |
public SerialDate getDate(int year)
This method supports the AnnualDateRule interface.
getDate
in class AnnualDateRule
year
- the year to check.
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