WeekFields weekOfYear() method in Java with Examples
The weekOfYear() method of WeekFields class is used to return a field to access the week of year based on this WeekFields.
Example:
- if the 1st day of the year is a Monday, week one starts on the 1st and there is no week zero
- if the 2nd day of the year is a Monday, week one starts on the 2nd and the 1st is in week zero
- if the 4th day of the year is a Monday, week one starts on the 4th and the 1st to 3rd is in week zero
- if the 5th day of the year is a Monday, week two starts on the 5th and the 1st to 4th is in week one
This field can be used with any calendar system.
Syntax:
public TemporalField weekOfYear()
Parameters: This method accepts nothing.
Return value: This method returns a field providing access to the week-of-year, not null.
Below programs illustrate the WeekFields.weekOfYear() method:
Program 1:
import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.temporal.TemporalField;
import java.time.temporal.WeekFields;
public class GFG {
public static void main(String[] args)
{
WeekFields weekFields
= WeekFields.of(DayOfWeek.MONDAY, 1 );
TemporalField weekOfYear
= weekFields.weekOfYear();
LocalDate day
= LocalDate.of( 2021 , 12 , 21 );
int wow = day.get(weekOfYear);
System.out.println( "Week of year for "
+ day + " :" + wow);
}
}
|
Output:
Week of year for 2021-12-21 :52
Program 2:
import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.temporal.TemporalField;
import java.time.temporal.WeekFields;
public class GFG {
public static void main(String[] args)
{
WeekFields weekFields
= WeekFields.of(DayOfWeek.SUNDAY, 1 );
TemporalField weekOfYear
= weekFields.weekOfYear();
LocalDate day = LocalDate.of( 2014 , 10 , 12 );
int wow = day.get(weekOfYear);
System.out.println( "Week of year for "
+ day + " :" + wow);
}
}
|
Output:
Week of year for 2014-10-12 :42
References: https://docs.oracle.com/javase/10/docs/api/java/time/temporal/WeekFields.html#weekOfYear()
Last Updated :
29 Jan, 2020
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