Java JapaneseChronology date(int, int, int)用法及代码示例

java.time.chrono.JapaneseChronology类的date()方法用于根据日本日历系统获取给定年，月和日的本地日期。

用法:

public JapaneseDate date(int prolepticYear,
                         int month,
                         int dayOfMonth)

参数：此方法采用以下参数作为参数。

prolepticYear:日语年域的整数预言年
month:日语的month字段的整数month
day:日文的日字段的整数天

返回值：此方法根据给定年，月和日的日语日历系统返回日语日期。

异常：如果日，月和年的给定字段无法形成结构化日期，则此方法将引发DateTimeException。

下面是说明date()方法的示例：

范例1：

// Java program to demonstrate 
// date() 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 lodate 
                = JapaneseDate.now(); 
  
            // getting JapaneseChronology 
            // used in JapaneseDate 
            JapaneseChronology crono 
                = lodate.getChronology(); 
  
            // getting JapaneseDate for the 
            // given date, month and year field 
            // by using date() mehtod 
            JapaneseDate date 
                = crono.date(2018, 05, 24); 
  
            // display the result 
            System.out.println( 
                "JapaneseDate is:"
                + date); 
        } 
        catch (DateTimeException e) { 
            System.out.println("passed paramter can "
                               + "not form a date"); 
            System.out.println("Exception thrown:" + e); 
        } 
    } 
}

输出：

JapaneseDate is:Japanese Heisei 30-05-24

范例2：

// Java program to demonstrate 
// date() 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 lodate 
                = JapaneseDate.now(); 
  
            // getting JapaneseChronology 
            // used in JapaneseDate 
            JapaneseChronology crono 
                = lodate.getChronology(); 
  
            // getting JapaneseDate for the 
            // given date, month and year field 
            // by using date() mehtod 
            JapaneseDate date 
                = crono.date(1440, 05, 24); 
  
            // display the result 
            System.out.println( 
                "JapaneseDate is:"
                + date); 
        } 
        catch (DateTimeException e) { 
            System.out.println( 
                "passed paramter can "
                + "not form a date"); 
            System.out.println( 
                "Exception thrown:" + e); 
        } 
    } 
}

输出：

passed paramter can not form a date
Exception thrown:
    java.time.DateTimeException:
    JapaneseDate before Meiji 6 is not supported

参考： https://docs.oracle.com/javase/9/docs/api/java/time/chrono/JapaneseChronology.html#date-int-int-int-

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注：本文由纯净天空筛选整理自RohitPrasad3大神的英文原创作品 JapaneseChronology date(int, int, int) method in Java with Example。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。