Java中的 LocalTime adjustInto() 方法及示例

LocalTime类的adjustInto()方法用于将指定的时间对象调整为与此LocatTime 对象具有相同的时间。

句法：

public Temporal adjustInto(Temporal temporal)

参数：此方法接受单个参数temporal ，它是要调整的目标对象，而不是具体为 null。

返回值：该方法返回调整后的时间对象。

异常：该函数抛出两个异常，如下所述：

• DateTimeException – 如果无法进行调整
• ArithmeticException – 如果发生数字溢出

下面的程序说明了 adjustInto() 方法：

方案一：

// 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]

方案二：

// 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: Java Java)