Java 8 – HijrahDate、ラマダンの日付の計算方法
Ramadanは、イスラム暦の9か月目、つまり1か月全体です。
1. HijrahDate→ラマダン2016
ラマダン2016の開始と終了を計算する完全な例
TestHijrahDate.java
package com.example.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())));
}
}
出力
HijrahDate : Hijrah-umalqura AH 1437-09-01 --- Ramandan 2016 --- Start : 2016-06-06 End : 2016-07-05