Java 中的 LocalTime adjustInto()方法，示例

原文:https://www . geesforgeks . org/local time-adjustin to-method-in-Java-with-examples/

LocalTime 类的 adjustInto() 方法用于调整指定的时间对象，使其与该 LocalTime 对象具有相同的时间。

语法:

public Temporal adjustInto(Temporal temporal)

参数:该方法接受单个参数时间，该参数是需要调整的目标对象，不具体为空。

返回值:该方法返回调整后的时态对象。

异常:该函数抛出如下所述的两个异常:

  • Abnormal date and time –If adjustment is not possible
  • Algorithm exception -If there is a numerical overflow

以下程序说明了 adjustInto()方法:

程序 1:

// Java program to demonstrate
// LocalTime.adjustInto() method

import java.time.*;

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

        // create a LocalTime Object
        LocalTime local
            = LocalTime.parse("09:32:42");

        // create Zone Time
        ZonedDateTime zonetime = ZonedDateTime.now();

        // print Zone Time
        System.out.println("ZonedDateTime"
                           + " before adjustInto():"
                           + zonetime.toString());

        // apply adjustInto()
        zonetime = (ZonedDateTime)local
                       .adjustInto(zonetime);

        // print Zone Time
        System.out.println("ZonedDateTime"
                           + " after adjustInto():"
                           + zonetime.toString());
    }
}

输出:

ZonedDateTime before adjustInto():2018-12-03T06:30:31.142Z[Etc/UTC]
ZonedDateTime after adjustInto():2018-12-03T09:32:42Z[Etc/UTC]

程序二:

// Java program to demonstrate
// LocalTime.adjustInto() method

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

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

        // create a LocalTime Object
        LocalTime local = LocalTime.parse("19:52:43");

        // create a Temporal object
        // which is equal to OffsetDateTime object
        OffsetDateTime passTemporal
            = OffsetDateTime.now();

        // print passed Value
        System.out.println("Before adjustInto() OffsetDateTime: "
                           + passTemporal);

        // apply adjustInto method
        // to adjust OffsetDateTime Temporal
        Temporal returnTemporal
            = local.adjustInto(passTemporal);

        // print results
        System.out.println("After adjustInto() OffsetDateTime: "
                           + (OffsetDateTime)returnTemporal);
    }
}

输出:

Before adjustInto() OffsetDateTime: 2018-12-03T06:30:33.927Z
After adjustInto() OffsetDateTime: 2018-12-03T19:52:43Z

参考:https://docs . Oracle . com/javase/10/docs/API/Java/time/local time . html # adjustInto(Java . time . temporal . temporal)

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