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

Last Updated : 24 Apr, 2020

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 and date.

Syntax:

public static JapaneseDate of(int prolepticYear,
                              int month,
                              int dayOfMonth)

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

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 and date.

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

// 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(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);
        }
    }
}

Output:

JapaneseDate: Japanese Heisei 20-04-24

Example 2:

Java

// 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(1444, 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);
        }
    }
}

Output:

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

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

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