Java tutorial
import java.util.Calendar; import java.util.Calendar; public class Main { public static void main(String[] args) { Calendar calendar = Calendar.getInstance(); calendar.set(Calendar.YEAR, 2007); calendar.set(Calendar.DAY_OF_YEAR, 180); // See the full information of the calendar object. System.out.println(calendar.getTime().toString()); // Get the weekday and print it int weekday = calendar.get(Calendar.DAY_OF_WEEK); System.out.println("Weekday: " + weekday); } }