Day Of Year To Day Of Week Program in java

import java.util.Calendar;
public class DayOfYearToDayOfWeek{
    public static void main(String[] args){
        Calendar calendar = Calendar.getInstance();
        for(int i=2000;i<2025;i++){
        calendar.set(Calendar.YEAR, i);
        calendar.set(Calendar.DAY_OF_YEAR,0);
        System.out.println(calendar.getTime().toString());
        int weekday = calendar.get(Calendar.DAY_OF_WEEK);
        System.out.println("Weekday: " + weekday);
        System.out.println();
        }
    }
}