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How to Calculate the Ramadan Date in Java

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How to Calculate the Ramadan Date in Java

A simple code snippet to calculate the start and end of Ramadan, the ninth month of the Islamic calendar.

· Java Zone
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HijrahDate -> Ramadan 2016

Ramadan lasts for the entire ninth month of the Islamic calendar. Here is a full example to calculate the start and end of Ramadan in 2016.

TestHijrahDate.java

package com.mkyong.date;

import java.time.LocalDate;
import java.time.chrono.HijrahDate;
import java.time.temporal.ChronoField;
import java.time.temporal.TemporalAdjusters;

public class TestDate {

    public static void main(String[] args) {

        //first day of Ramadan, 9th month
        HijrahDate ramadan = HijrahDate.now()
                .with(ChronoField.DAY_OF_MONTH, 1).with(ChronoField.MONTH_OF_YEAR, 9);
        System.out.println("HijrahDate : " + ramadan);

        //HijrahDate -> LocalDate
        System.out.println("\n--- Ramandan 2016 ---");
        System.out.println("Start : " + LocalDate.from(ramadan));

        //until the end of the month
        System.out.println("End : " + LocalDate.from(ramadan.with(TemporalAdjusters.lastDayOfMonth())));

    }

}

Output

HijrahDate : Hijrah-umalqura AH 1437-09-01

--- Ramandan 2016 ---
Start : 2016-06-06
End : 2016-07-05

References

  1. Wikipedia – Ramadan (calendar month)
  2. HijrahDate JavaDoc

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Topics:
java ,jvm ,dates

Published at DZone with permission of Yong Mook Kim, DZone MVB. See the original article here.

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