Java 中的区域偏移调整(时态)方法，示例

原文:https://www . geesforgeks . org/zone offset-adjustintemporal-method-in-Java-with-examples/

使用 java.time 包中 ZoneOffset 类的adjusttinto(Temporal)方法获取一个调整后的 Temporal 实例，并将该 ZoneOffset 实例调整到其中。该方法以时态实例为参数，返回一个时态实例，即调整后的实例。

语法:

public Temporal adjustInto(Temporal temporalInstance)

参数:该方法接受一个参数临时实例，它是要调整的临时实例。

返回值:这个方法返回一个时态实例，它是这个时态实例的调整值。

异常:此方法抛出以下异常:

  • Abnormal date and time : If adjustment cannot be made.
  • Arithmetic exception : If there is a numerical overflow.

以下示例说明了 ZoneOffset.adjustInto()方法:

例 1:

// Java code to illustrate adjustInto() method

import java.time.temporal.*;
import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // Get the Temporal instance
        ZonedDateTime temporalInstance
            = ZonedDateTime.now();

        System.out.println("Original Temporal instance: "
                           + temporalInstance);

        // Get the ZoneOffset
        ZoneOffset zoneOffset
            = ZoneOffset.ofHours(5);

        // Using adjustInto() method
        ZonedDateTime adjustedTemporal
            = (ZonedDateTime)zoneOffset
                  .adjustInto(temporalInstance);

        System.out.println("Adjusted Temporal instance: "
                           + adjustedTemporal);
    }
}

输出:

Original Temporal instance: 2018-12-11T09:44:14.373Z[Etc/UTC]
Adjusted Temporal instance: 2018-12-11T09:44:14.373Z[Etc/UTC]

例 2:

// Java code to illustrate adjustInto() method

import java.time.temporal.*;
import java.time.*;

public class GFG {
    public static void main(String[] args)
    {

        // Get the Temporal instance
        OffsetDateTime temporalInstance
            = OffsetDateTime.now();

        System.out.println("Original Temporal instance: "
                           + temporalInstance);

        // Get the ZoneOffset
        ZoneOffset zoneOffset
            = ZoneOffset.ofHours(5);

        // Using adjustInto() method
        Temporal adjustedTemporal
            = zoneOffset
                  .adjustInto(temporalInstance);

        System.out.println("Adjusted Temporal instance: "
                           + adjustedTemporal);
    }
}

输出:

Original Temporal instance: 2018-12-11T09:44:16.893Z
Adjusted Temporal instance: 2018-12-11T09:44:16.893+05:00

参考: 甲骨文文档

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