java Java 中带(TemporalField，long)方法的 ChronoZonedDateTime

Java 中带(TemporalField，long)方法的 ChronoZonedDateTime 带示例

原文:https://www . geeksforgeeks . org/chronozoneddatetime-with temporal field-long-method-in-Java-with-examples/

时区数据时间界面的 with(临时字段，长新值)方法用于将时区数据时间的指定字段设置为新值，并返回新时间的副本。此方法可用于更改任何支持的字段，如年、日、月、小时、分钟或秒。如果由于字段不受支持或其他原因而无法设置新值，则会引发异常。计时区域的这个实例是不可变的，不受这个方法调用的影响。

语法:

ChronoZonedDateTime with(TemporalField field, 
                         long newValue)

参数:该方法接受两个参数:

The field is a field to be set in the result.
New value is the new value of the field in the result as a parameter.

返回值:该方法返回一个时区时间，以此为基础设置指定的字段。

异常:此方法抛出以下异常:

Abnormal date and time -If it cannot be adjusted.
不受支持的 dtime type exception 唉哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟哟。
Arithmetic exception -If there is a numerical overflow.

下面的程序说明了 with()方法:

程序 1:

// Java program to demonstrate
// ChronoZonedDateTime.with() method

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

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

        // create ChronoZonedDateTime object
        ChronoZonedDateTime time
            = ZonedDateTime
                  .parse(
                      "2018-12-06T19:21:12.123+05:30[Asia/Calcutta]");

        // print instance
        System.out.println("ChronoZonedDateTime before"
                           + " adjustment: "
                           + time);

        // apply with method of ChronoZonedDateTime
        ChronoZonedDateTime updatedlocal
            = time.with(ChronoField.YEAR, 2017);

        // print instance
        System.out.println("ChronoZonedDateTime after"
                           + " adjustment: "
                           + updatedlocal);
    }
}

输出:

ChronoZonedDateTime before adjustment: 2018-12-06T19:21:12.123+05:30[Asia/Calcutta]
ChronoZonedDateTime after adjustment: 2017-12-06T19:21:12.123+05:30[Asia/Calcutta]

程序二:

// Java program to demonstrate
// ChronoZonedDateTime.with() method

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

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

        // create ChronoZonedDateTime object
        ChronoZonedDateTime time
            = ZonedDateTime
                  .parse(
                      "1918-10-25T23:12:38.543+02:00[Europe/Paris]");

        // print instance
        System.out.println("ChronoZonedDateTime before"
                           + " adjustment: "
                           + time);

        // apply with method of ChronoZonedDateTime
        ChronoZonedDateTime updatedlocal
            = time.with(ChronoField.MONTH_OF_YEAR, 1);

        // print instance
        System.out.println("ChronoZonedDateTime after"
                           + " adjustment: "
                           + updatedlocal);
    }
}

输出:

ChronoZonedDateTime before adjustment: 1918-10-25T23:12:38.543Z[Europe/Paris]
ChronoZonedDateTime after adjustment: 1918-01-25T23:12:38.543Z[Europe/Paris]