Java JapaneseChronology dateNow(Clock)用法及代碼示例

java.time.chrono.JapaneseChronology類的dateNow()方法用於根據指定的時鍾對象根據日語日曆係統獲取當前日語日期。

用法:

public JapaneseDate dateNow(Clock clock)

參數：此方法將時鍾的對象作為參數，該參數用於根據日語日曆係統從指定的時鍾對象獲取當前的日語日期。

返回值：此方法根據指定的時鍾對象根據日語日曆係統返回日語日期。

下麵是說明dateNow()方法的示例：

範例1：

// Java program to demonstrate 
// dateNow() 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 
            // JapaneseDate Object 
            JapaneseDate hidate 
                = JapaneseDate.now(); 
  
            // getting JapaneseChronology 
            // used in JapaneseDate 
            JapaneseChronology crono 
                = hidate.getChronology(); 
  
            // creating and initializing 
            // clock object 
            Clock clock = Clock.systemUTC(); 
  
            // getting JapaneseDate for the 
            // given clock object 
            // by using dateNow() method 
            JapaneseDate date 
                = crono.dateNow(clock); 
  
            // display the result 
            System.out.println( 
                "JapaneseDate is:"
                + date); 
        } 
        catch (DateTimeException e) { 
            System.out.println( 
                "passed parameter can "
                + "not form a date"); 
            System.out.println( 
                "Exception thrown:" + e); 
        } 
    } 
}

輸出：

JapaneseDate is:Japanese Heisei 32-03-11

範例2：

// Java program to demonstrate 
// dateNow() 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 
            // JapaneseDate Object 
            JapaneseDate hidate 
                = JapaneseDate.now(); 
  
            // getting JapaneseChronology 
            // used in JapaneseDate 
            JapaneseChronology crono 
                = hidate.getChronology(); 
  
            // creating and initializing 
            // clock object 
            Clock clock 
                = Clock.systemUTC(); 
  
            // setting clock 
            clock = Clock.tick( 
                clock, 
                Duration.ofDays(100)); 
  
            // getting JapaneseDate for the 
            // given clock object 
            // by using dateNow() method 
            JapaneseDate date 
                = crono.dateNow(clock); 
  
            // display the result 
            System.out.println( 
                "JapaneseDate is:"
                + date); 
        } 
        catch (DateTimeException e) { 
            System.out.println( 
                "passed parameter can "
                + "not form a date"); 
            System.out.println( 
                "Exception thrown:" + e); 
        } 
    } 
}

輸出：

JapaneseDate is:Japanese Heisei 32-02-08

參考： https://docs.oracle.com/javase/9/docs/api/java/time/chrono/JapaneseChronology.html#dateNow-java.time.Clock-

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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 JapaneseChronology dateNow(Clock) 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。