Java 中的 Japanese 年表 zonedDateTime(Instant，ZoneId)方法，示例

原文:https://www . geeksforgeeks . org/Japanese 年表-zoneddatetimeinstant-zoneid-in-Java-method-with-example/

Java . time . chrono . Japanese 年代学类的 zonedDateTime() 方法用于根据特定时刻的日语日历检索特定区域的日期和时间。

语法:

public ZonedDateTime zonedDateTime(
       Instant instant, ZoneId zone)

参数:该方法以下列参数为参数。

  • Instantaneous: is instantaneous.
  • Type of object area: is zoneId.

类型的对象

返回值:该方法根据日本日历从特定时刻返回特定区域的区域日期时间。

以下是说明区域时间()方法的示例:

例 1:

// Java program to demonstrate
// zonedDateTime() 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
            // JapaneseDate Object
            JapaneseDate hidate
                = JapaneseDate.now();

            // getting JapaneseChronology
            // used in JapaneseDate
            JapaneseChronology crono
                = hidate.getChronology();

            // getting JapaneseDate and time for the
            // given Instant and ZoneId
            // by using zonedDateTime() method
            ChronoZonedDateTime<JapaneseDate> date
                = crono.zonedDateTime(
                    Instant.now(),
                    ZoneId.systemDefault());

            // display the result
            System.out.println(
                "JapaneseDate and time is: "
                + date);
        }
        catch (DateTimeException e) {
            System.out.println(
                "passed parameter can "
                + "not form a date");
            System.out.println(
                "Exception thrown: " + e);
        }
    }
}

输出:

JapaneseDate and time is:
 Japanese Heisei 32-03-15T06:55:36.135Z[Etc/UTC]

例 2:

// Java program to demonstrate
// zonedDateTime() 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
            // JapaneseDate Object
            JapaneseDate hidate
                = JapaneseDate.now();

            // getting JapaneseChronology
            // used in JapaneseDate
            JapaneseChronology crono
                = hidate.getChronology();

            // getting JapaneseDate and time for the
            // given Instant and ZoneId
            // by using zonedDateTime() method
            ChronoZonedDateTime<JapaneseDate> date
                = crono.zonedDateTime(
                    Instant.ofEpochSecond(25000),
                    ZoneId.systemDefault());

            // display the result
            System.out.println(
                "JapaneseDate and time is: "
                + date);
        }
        catch (DateTimeException e) {
            System.out.println(
                "passed parameter can "
                + "not form a date");
            System.out.println(
                "Exception thrown: " + e);
        }
    }
}

输出:

JapaneseDate and time is:
 Japanese Showa 45-01-01T06:56:40Z[Etc/UTC]

参考:https://docs . Oracle . com/javase/9/docs/API/Java/time/chrono/Japanese yestereo . html # zonedDateTime-Java . time . instant-Java . time . zoneid-

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