The dateEpochDay() method of java.time.chrono.IsoChronology class is used to get the local date according to ISO system from Epoch Day.
Syntax:
public IsoDate dateEpochDay(long epochDay)
Parameter: This method takes the epochDay of type long as a parameter.
Return Value: This method returns the IsoDate according to Hijrah calendar system from another TemporalAccessor object.
Below are the examples to illustrate the dateEpochDay() method:
Example 1:
Java
// Java program to demonstrate // dateEpochDay() 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 LocalDate Object
LocalDate hidate = LocalDate.now();
// getting IsoChronology used in LocalDate
IsoChronology crono = hidate.getChronology();
// display the result
System.out.println( "current LocalDate is: "
+ hidate);
// getting LocalDate for the
// given TemporalAccessor object
// by using dateEpochDay() method
hidate = crono.dateEpochDay( 23456 );
// display the result
System.out.println( "\nLocalDate(according "
+ "to epochday) is: "
+ hidate);
}
catch (DateTimeException e) {
System.out.println( "passed parameter can"
+ " not form a date" );
System.out.println( "Exception thrown: " + e);
}
}
} |
Output
current LocalDate is: 2023-01-28 LocalDate(according to epochday) is: 2034-03-22
Example 2:
Java
// Java program to demonstrate // dateEpochDay() 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 LocalDate Object
LocalDate hidate = LocalDate.of( 00000 , 01 , 01 );
// getting IsoChronology used in LocalDate
IsoChronology crono = hidate.getChronology();
// display the result
System.out.println( "current LocalDate is: "
+ hidate);
// getting LocalDate for the
// given TemporalAccessor object
// by using dateEpochDay() method
hidate = crono.dateEpochDay(- 999999999 );
// display the result
System.out.println( "\nLocalDate(according "
+ "to epochday) is: "
+ hidate);
}
catch (DateTimeException e) {
System.out.println( "passed parameter can"
+ " not form a date" );
System.out.println( "Exception thrown: " + e);
}
}
} |
Output
current LocalDate is: 0000-01-01 LocalDate(according to epochday) is: -2735938-12-30
Reference: https://docs.oracle.com/javase/9/docs/api/java/time/chrono/IsoChronology.html#dateEpochDay-long-