Java JapaneseChronology prolepticYear()用法及代码示例

java.time.chrono.JapaneseChronology类的prolepticYear()方法用于检索特定日本时代的日本系统中存在的多义年份。

用法:

public int prolepticYear(Era era,
                         int yearOfEra)

参数：此方法将以下参数作为参数。

era:这是日本时代的目标。
yearofEra:这是日本特定时代的一年

返回值：此方法返回出现在特定日本时代的日语系统中的多义年份。

下面是说明prolepticYear()方法的示例：

范例1：

// Java program to demonstrate 
// prolepticYear() 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(); 
  
            // getting prolepticYear for the 
            // given year of Era 
            // by using prolepticYear() method 
            int proyear 
                = crono.prolepticYear( 
                    JapaneseEra.HEISEI, 
                    1444); 
  
            // display the result 
            System.out.println("proleptic Year is:"
                               + proyear); 
        } 
        catch (DateTimeException e) { 
            System.out.println( 
                "passed parameter can"
                + " not form a date"); 
            System.out.println( 
                "Exception thrown:" + e); 
        } 
    } 
}

输出：

proleptic Year is:3432

范例2：

// Java program to demonstrate 
// prolepticYear() 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(); 
  
            // getting prolepticYear for the 
            // given year of Era 
            // by using prolepticYear() method 
            int proyear 
                = crono.prolepticYear( 
                    JapaneseEra.SHOWA, 1200); 
  
            // display the result 
            System.out.println("proleptic Year is:"
                               + proyear); 
        } 
        catch (DateTimeException e) { 
            System.out.println("passed parameter can"
                               + " not form a date"); 
            System.out.println("Exception thrown:" + e); 
        } 
    } 
}

输出：

passed parameter can not form a date
Exception thrown:java.time.DateTimeException:Invalid yearOfEra value

参考： https://docs.oracle.com/javase/9/docs/api/java/time/chrono/JapaneseChronology.html#prolepticYear-java.time.chrono.Era-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 prolepticYear() 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。