import java.util.EnumSet; public class EnumSetExample { enum Day { MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY, SATURDAY, SUNDAY } public static void main(String[] args) { EnumSet<Day> workDays = EnumSet.range(Day.MONDAY, Day.FRIDAY); System.out.println("Work Days: " + workDays); EnumSet<Day> weekendDays = EnumSet.complementOf(workDays); System.out.println("Weekend Days: " + weekendDays); } }