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(); } } }