## org.jfree.date
Class EasterSundayRule

    java.lang.Object
      org.jfree.date.AnnualDateRule
          org.jfree.date.EasterSundayRule

All Implemented Interfaces:
  java.lang.Cloneable

public class EasterSundayRule
extends AnnualDateRule

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.

Author:
  David Gilbert

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

### EasterSundayRule

    public EasterSundayRule()

  Default constructor.

Method Detail

### getDate

    public SerialDate getDate(int year)

  Returns the date of Easter Sunday for the given year. See the class description for the source of the algorithm.

  This method supports the AnnualDateRule interface.

  Specified by:
    `getDate` in class `AnnualDateRule`
  Parameters:
    `year` - the year to check.
  Returns:
    the date of Easter Sunday for the given year.