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

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  • Last Updated : 25 Jan, 2022
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The dateYearDay() method of java.time.chrono.JapaneseChronology class is used to retrieve the Japanese date according to the Iso calendar for the particular year and date.
Syntax: 
 

public JapaneseDate dateYearDay(
  int prolepticYear, int dayOfYear)

Parameter: This method takes the following arguments as parameter: 
 

  • year: which is the integer proleptic 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(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 30-01-24

 

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(1440, 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:
 JapaneseDate before Meiji 6 is not supported

 

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


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