JDK5.0 新機能：EnumSet.allOf

「4.6. EnumSet」

import java.util.*;

enum C2008082700_Color { RED, BLUE, YELLOW, BLACK, WHITE }

public class C2008082700 {
    public static void main(String[] args) {
        EnumSet<C2008082700_Color> s = EnumSet.allOf(C2008082700_Color.class);

        System.out.println(s);
    }
}

で、

[RED, BLUE, YELLOW, BLACK, WHITE]