带有示例的Java中的 HijrahChronology dateEpochDay() 方法

Java.time.chrono.HijrahChronology类的dateEpochDay()方法用于从大纪元开始根据 Hijrah 日历系统获取本地日期。
句法：

public HijrahDate dateEpochDay(long epochDay)

参数：该方法以long类型的epochDay作为参数。
返回值：此方法根据回历系统从另一个 TemporalAccessor 对象返回本地日期。
异常：如果给定的纪元日无法形成结构化日期，则此方法抛出DateTimeException 。
以下是说明dateEpochDay()方法的示例：
示例 1：

Java

// Java program to demonstrate
// dateEpochDay() method
 
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
 
public class GFG {
    public static void main(String[] argv)
    {
        try {
            // creating and initializing  HijrahDate Object
            HijrahDate hidate = HijrahDate.now();
 
            // getting HijrahChronology used in HijrahDate
            HijrahChronology crono = hidate.getChronology();
 
            // display the result
            System.out.println("current HijrahDate is: "
                               + hidate);
 
            // getting HijrahDate for the
            // given TemporalAccessor object
            // by using date() method
            hidate = crono.dateEpochDay(23456);
 
            // display the result
            System.out.println("\nHijrahDate(according "
                               + "to ephochday) is: "
                               + hidate);
        }
        catch (DateTimeException e) {
            System.out.println("passed parameter can"
                               + " not form a date");
            System.out.println("Exception thrown: " + e);
        }
    }
}

输出

current HijrahDate is: Hijrah-umalqura AH 1442-11-15

HijrahDate(according to ephochday) is: Hijrah-umalqura AH 1456-01-01

示例 2：

Java

// Java program to demonstrate
// dateEpochDay() method
 
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
 
public class GFG {
    public static void main(String[] argv)
    {
        try {
            // creating and initializing  HijrahDate Object
            HijrahDate hidate = HijrahDate.now();
 
            // getting HijrahChronology used in HijrahDate
            HijrahChronology crono = hidate.getChronology();
 
            // display the result
            System.out.println("current HijrahDate is: "
                               + hidate);
 
            // getting HijrahDate for the
            // given TemporalAccessor object
            // by using date() method
            hidate = crono.dateEpochDay(234568);
 
            // display the result
            System.out.println("HijrahDate(according "
                               + "to ephochday) is: "
                               + hidate);
        }
        catch (DateTimeException e) {
            System.out.println("\npassed parameter can"
                               + " not form a date");
            System.out.println("Exception thrown: " + e);
        }
    }
}

输出

current HijrahDate is: Hijrah-umalqura AH 1442-11-15

passed parameter can not form a date
Exception thrown: java.time.DateTimeException: Hijrah date out of range

参考： https://docs.oracle.com/javase/9/docs/api/ Java/time/chrono/HijrahChronology.html#dateEpochDay-long-