Re: Singletons?

Eric Sosman <esosman@acm-dot-org.invalid>
Wed, 14 Jun 2006 08:05:54 -0400
Mark Space wrote:

Andrew McDonagh wrote:

Another question would be: What can I do instead of using Singletons?

Right. I'm already thinking that I don't need (or want) to make the
anAPI class into a singleton. First, unlike C++ where I could still
take a reference to a singleton object, I can't in Java. So allowing
object creation (really just a reference in Java) might actually be
useful for anAPI.

     Are you using the words "singleton" and/or "reference" in
some peculiar way, possibly specific to C++? In Java, you can
make as many references as you please to an object, singleton
or otherwise:

    public class Lonesome {
        private static final Lonesome thing = new Lonesome();
        private Lonesome() {}
        public static Lonesome getInstance() {
            return thing;


    Lonesome trail = Lonesome.getInstance();
    Lonesome cowboy = Lonesome.getInstance();
    Lonesome star = Lonesome.getInstance();

     Maybe if you'd take a step back and describe the problem you
want to solve instead of describing the techniques you're trying
to use to solve it, somebody might be able to offer better advice.

Eric Sosman

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