Question

How to calculate the week number for a given date in Java

Answer 1

import java.time.LocalDate;
import java.time.temporal.WeekFields;
import java.util.Locale;

public class WeekNumberCalculator {
    public static void main(String[] args) {
        LocalDate date = LocalDate.of(2025, 3, 14); 
        
        WeekFields weekFields = WeekFields.of(Locale.getDefault());
        
        int weekNumber = date.get(weekFields.weekOfWeekBasedYear());
        
        System.out.println("Week number: " + weekNumber);
    }
}



/*
run:

Week number: 11

*/

 

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