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JapaneseChronology dateYearDay(Era, int, int) method in Java with Example

  • Last Updated : 27 Mar, 2020

The dateYearDay() method of java.time.chrono.JapaneseChronology class is used to retrieve the Japanese date according to the japanese calendar for the particular era.

Syntax:

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public JapaneseDate dateYearDay(
  Era era, int yearOfEra, int dayOfYear)

Parameter: This method takes the following arguments as parameter:

  • era: which is the object of type era
  • year: which is the integer propleptic year for the year field of JapaneseDate
  • day: which is the integer day for the day field of JapaneseDate

Return Value: This method returns the Japanese date according to the Japanese calendar for the particular year and date.



Exception: This method throws DateTimeException – if the given data is unable to form a date.

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

Example 1:

Java




// Java program to demonstrate
// dateYearDay() 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
            // JapaneseDate Object
            JapaneseDate hidate
                = JapaneseDate.now();
  
            // getting JapaneseChronology
            // used in JapaneseDate
            JapaneseChronology crono
                = hidate.getChronology();
  
            // getting JapaneseDate for the
            // given date and year field
            // by using dateYearDay() method
            JapaneseDate date
                = crono.dateYearDay(
                    JapaneseEra.HEISEI,
                    2018,
                    24);
  
            // display the result
            System.out.println(
                "JapaneseDate is: "
                + date);
        }
        catch (DateTimeException e) {
            System.out.println(
                "passed parameter can "
                + "not form a date");
            System.out.println(
                "Exception thrown: " + e);
        }
    }
}
Output:
JapaneseDate is: Japanese Heisei 2018-01-24

Example 2:

Java




// Java program to demonstrate
// dateYearDay() 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
            // JapaneseDate Object
            JapaneseDate hidate
                = JapaneseDate.now();
  
            // getting JapaneseChronology
            // used in JapaneseDate
            JapaneseChronology crono
                = hidate.getChronology();
  
            // getting JapaneseDate for the
            // given date and year field
            // by using dateYearDay() method
            JapaneseDate date
                = crono.dateYearDay(
                    JapaneseEra.MEIJI,
                    2018,
                    24);
  
            // display the result
            System.out.println(
                "JapaneseDate is: "
                + date);
        }
        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:
 Invalid parameters

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




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