Java IsoChronology zonedDateTime(TemporalAccessor)用法及代碼示例

java.time.chrono.IsoChronology類的zonedDateTime()方法用於根據Iso日曆係統從另一個TemporalAccessor對象獲取區域日期和時間。

用法:

public ZonedDateTime zonedDateTime(
          TemporalAccessor temporal)

參數：此方法將任何臨時訪問器的對象作為參數。

返回值：此方法根據Iso日曆係統從另一個TemporalAccessor對象返回區域日期和時間。

下麵是說明zonedDateTime()方法的示例：

範例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); 
        } 
    } 
}

輸出：

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

範例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); 
        } 
    } 
}

輸出：

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

參考： https://docs.oracle.com/javase/9/docs/api/java/time/chrono/IsoChronology.html#zonedDateTime-java.time.temporal.TemporalAccessor-

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注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 IsoChronology zonedDateTime(TemporalAccessor) method in Java with Example。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。