JapaneseDate of(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 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-