staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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akmalxxx

/*
  Umm Al-Qura Islamic Calendar

  valid from 1356 AH (14 March 1937 CE) to 1500 AH (16 November 2077 CE).
  Outside this interval, the converter will give erroneous results.

  ported from javascript from:
  http://www.staff.science.uu.nl/~gent0113/islam/ummalqura_converter.htm#top
*/
import java.util.Calendar;