JapaneseDate of(JapaneseEra,int, int, int) method in Java with Example

The of() method of java.time.chrono.JapaneseDate class is used to generate the date according to Japanese calendar system by using the passed proleptic year, month, date and JapaneseEra.

Syntax:

public static JapaneseDate of(JapaneseEra era,
                              int yearOfEra,
                              int month,
                              int dayOfMonth)

Parameter: This method takes the following argument as a parameter:

  • era: object of Japanese era which represent the era field in Japanese date.
  • year: which is the integer value of year which represent the year field in Japanese date.
  • month: which is the integer value of month which represent the month field in Japanese date.
  • day: which is the integer value of day which represent the day field in Japanese date.

Return Value: This method returns the date according to Japanese calendar system by using the passed proleptic year, month, date and era.

Exception: This method throws DateTimeException if the passed parameter is unable to form date.



Below are the examples to illustrate the of() method:

Example 1:

Java

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// Java program to demonstrate of() method
  
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        try {
  
            // Creating and initializing
            // JapaneseDate Object
            // By using of() method
            JapaneseDate hidate
                = JapaneseDate.of(
                    JapaneseEra.HEISEI,
                    2008, 04, 24);
  
            // Display the result
            System.out.println("JapaneseDate: "
                               + hidate);
        }
        catch (DateTimeException e) {
            System.out.println("passed parameter can"
                               + " not form a date");
            System.out.println("Exception thrown: "
                               + e);
        }
    }
}

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Output:

JapaneseDate: Japanese Heisei 2008-04-24

Example 2:

Java

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// Java program to demonstrate of() method
  
import java.util.*;
import java.io.*;
import java.time.*;
import java.time.chrono.*;
import java.time.temporal.*;
  
public class GFG {
    public static void main(String[] argv)
    {
        try {
  
            // Creating and initializing
            // JapaneseDate Object
            // By using of() method
            JapaneseDate hidate
                = JapaneseDate.of(
                    JapaneseEra.TAISHO,
                    2008, 04, 24);
  
            // Display the result
            System.out.println("JapaneseDate: "
                               + hidate);
        }
        catch (DateTimeException e) {
            System.out.println("passed parameter can"
                               + " not form a date");
            System.out.println("Exception thrown: "
                               + e);
        }
    }
}

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Output:

passed parameter can not form a date
Exception thrown: java.time.DateTimeException: year, month, and day not valid for Era

Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/JapaneseDate.html#of-java.time.chrono.JapaneseEra-int-int-int-

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