Java IsoChronology eras()用法及代碼示例

java.time.chrono.IsoChronology類的eras()方法用於檢索此特定Iso年表下的所有時代。

用法:

public List eras()

參數：此方法不接受任何參數作為參數。

返回值：這種方法返回了這個特定的Iso年表所處的所有時代。

下麵是說明eras()方法的示例：

範例1：

// Java program to demonstrate 
// eras() 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(); 
  
            // getting all IsoEras present 
            // by using eraOf() method 
            List<Era> list = crono.eras(); 
  
            // display the result 
            System.out.println("IsoEra is:"
                               + (list.iterator()).next()); 
        } 
        catch (DateTimeException e) { 
            System.out.println("IsoEra is invalid"); 
            System.out.println("Exception thrown:" + e); 
        } 
    } 
}

輸出：

IsoEra is:BCE

範例2：

// Java program to demonstrate 
// eras() 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(); 
  
            // getting all IsoEras present 
            // by using eraOf() method 
            List<Era> list = crono.eras(); 
  
            // getting list Iterator 
            Iterator iter = list.iterator(); 
  
            // display the result 
            System.out.println("List of IsoEra:"
                               + "\n"
                               + iter.next() + "\n"
                               + iter.next()); 
        } 
        catch (DateTimeException e) { 
            System.out.println("IsoEra is invalid"); 
            System.out.println("Exception thrown:" + e); 
        } 
    } 
}

輸出：

List of IsoEra:
BCE
CE

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

相關用法

注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 IsoChronology eras() 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。