Java tutorial
import java.util.EnumSet; enum Numbers { ONE, TWO, THREE, FOUR, FIVE }; public class Main { public static void main(String[] args) { // create a set EnumSet<Numbers> set; // add one element set = EnumSet.of(Numbers.FIVE, Numbers.FOUR, Numbers.THREE, Numbers.TWO, Numbers.ONE); System.out.println(set); } }