java Java 中的等时区数据时间方法，示例

Java 中的等时区数据时间方法，示例

原文:https://www . geeksforgeeks . org/isochronomics-zoneddatimetemporalacessor-method-in-Java-with-example/

Java . time . chrono . isochronology 类的 zonedDateTime() 方法用于从另一个 TemporalAccessor 对象获取符合 Iso 日历系统的区域日期和时间。

语法:

public ZonedDateTime zonedDateTime(
          TemporalAccessor temporal)

参数:该方法以任意时态取值器的对象为参数。

返回值:该方法从另一个临时进程对象返回根据 Iso 日历系统的区域日期和时间。

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
            // LocalDate Object
            LocalDate hidate
                = LocalDate.now();

            // getting IsoChronology
            // used in LocalDate
            IsoChronology crono
                = hidate.getChronology();

            // creating and initializing
            // TemporalAccessor object
            ZonedDateTime zonedate
                = ZonedDateTime
                      .parse(
                          "2018-10-25T23:12:31."
                          + "123+02:00[Europe/Paris]");

            // getting LocalDate and time for the
            // given TemporalAccessor object
            // by using zonedDateTime() method
            ChronoZonedDateTime<LocalDate> date
                = crono.zonedDateTime(zonedate);

            // display the result
            System.out.println(
                "LocalDate 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:

LocalDate and time is: 2018-10-25T23:12:31.123+02:00[Europe/Paris]

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
            // LocalDate Object
            LocalDate hidate
                = LocalDate.now();

            // getting IsoChronology
            // used in LocalDate
            IsoChronology crono
                = hidate.getChronology();

            // creating and initializing
            // TemporalAccessor object
            LocalDateTime localdate
                = LocalDateTime.parse(
                    "2018-12-30T19:34:50.63");

            // getting LocalDate and time for the
            // given TemporalAccessor object
            // by using zonedDateTime() method
            ChronoZonedDateTime<LocalDate> date
                = crono.zonedDateTime(localdate);

            // display the result
            System.out.println(
                "LocalDate 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:

passed parameter can not form a date
Exception thrown: java.time.DateTimeException: Unable to obtain ZonedDateTime from TemporalAccessor: 2018-12-30T19:34:50.630 of type java.time.LocalDateTime