The eraOf() method of java.time.chrono.IsoChronology class is used to retrieve the Iso Era by using numeric value 0 and 1 because IsoChronology contains only two HijrahEra. Syntax:
public IsoEra eraOf(int eraValue)
Parameter: This method takes the eraValue integer as a parameter for which IsoEra is going to be generated. Return Value: This method returns the Iso Era by using numeric value 0 and 1 because IsoChronology contains only two HijrahEra . Below are the examples to illustrate the eraOf() method: Example 1:Â
Java
// Java program to demonstrate// eraOf() methodÂ
import java.util.*;import java.io.*;import java.time.*;import java.time.chrono.*;Â
public class GFG {    public static void main(String[] argv)    {        try {            // creating and initializing            // LocalDate Object            LocalDate hidate = LocalDate.now();Â
            // getting IsoChronology            // used in LocalDate            IsoChronology crono                = hidate.getChronology();Â
            // getting IsoEra for the            // given integer value            // by using eraOf() method            IsoEra era = crono.eraOf(0);Â
            // display the result            System.out.println("IsoEra is: "                               + era);        }        catch (DateTimeException e) {            System.out.println("HijrahEra is invalid");            System.out.println("Exception thrown: " + e);        }    }} |
Output:
IsoEra is: BCE
Example 2:Â
Java
// Java program to demonstrate// eraOf() methodÂ
import java.util.*;import java.io.*;import java.time.*;import java.time.chrono.*;Â
public class GFG {    public static void main(String[] argv)    {        try {            // creating and initializing            // LocalDate Object            LocalDate hidate = LocalDate.now();Â
            // getting IsoChronology            // used in LocalDate            IsoChronology crono                = hidate.getChronology();Â
            // getting IsoEra for the            // given integer value            // by using eraOf() method            IsoEra era = crono.eraOf(1);Â
            // display the result            System.out.println("IsoEra is: "                               + era);        }        catch (DateTimeException e) {            System.out.println("HijrahEra is invalid");            System.out.println("Exception thrown: " + e);        }    }} |
Output:
IsoEra is: CE
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/IsoChronology.html#eraOf-int-
