EnumSet « enum « Java Data Type Q&A

1. EnumSet for pre-1.5 fake enums?    stackoverflow.com

Recently I've been doing a lot of these

enum Thing {

    /* etc etc */

    static final Set<Thing> allThings = EnumSet.allOf(Thing.class);

}

2. EnumSet 'and' operation    stackoverflow.com

I'm porting some old code that uses the int enum pattern to Enum and EnumSet. It is very easy but I don't know how translate the following code to ...

3. Enum.values() vs EnumSet.allOf( ). Which one is more preferable?    stackoverflow.com

I looked under the hood for EnumSet.allOf and it looks very efficient, especially for enums with less than 64 values. Basically all sets share the single array of all possible enum values ...

4. How can I mimic a multi-tiered menuing system using Java enums?    stackoverflow.com

I need to accomplish the following (this is a simplified version):

enum Animals{
 enum Cats{tabby("some value"), siamese("some value")},
 enum Dogs{poodle("some value"), dachsund("some value")},
 enum Birds{canary("some value"), parrot("some value")}

 private String someValue ...

5. Implementing a bitfield using java enums    stackoverflow.com

I maintain a large document archive and I often use bit fields to record the status of my documents during processing or when validating them. My legacy code simply uses static ...

6. java enums ordering    stackoverflow.com

Im using java enums to define how to render a modal window with buttons (Vaadin handles the rendering). My problem is that when I run the gui my buttons comes in ...