Groups > comp.lang.java.programmer > #34273

Working with an array of TreeSet

Path	csiph.com!eternal-september.org!feeder.eternal-september.org!mx02.eternal-september.org!.POSTED!not-for-mail
From	Cecil Westerhof <Cecil@decebal.nl>
Newsgroups	comp.lang.java.programmer
Subject	Working with an array of TreeSet
Date	Tue, 10 May 2016 13:37:01 +0200
Organization	Decebal Computing
Lines	24
Message-ID	<87lh3ijg9u.fsf@Equus.decebal.nl> (permalink)
Mime-Version	1.0
Content-Type	text/plain
Injection-Info	mx02.eternal-september.org; posting-host="12baf5125b19322b899c79c2e3878015"; logging-data="21882"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX1/vO66qwuf68fAQ0aAmyXL2JcaeYRFK6q0="
User-Agent	Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux)
X-Homepage	http://www.decebal.nl/
Cancel-Lock	sha1:r4BI53DwL82Mfd7r198Az1s95fo= sha1:2HTK49SsJvixXe5sSc1GhcAKYK0=
Xref	csiph.com comp.lang.java.programmer:34273

Show key headers only | View raw

I would like to have an array of TreeSet<Integer>. But that is not
possible in Java.
So I use:
    TreeSet<?>[] allNodes;
I fill this with:
    for (int i = 1; i < maxNode; ++i) {
        allNodes[i] = new TreeSet<Integer>();
    }

And to add an Integer I use:
    @SuppressWarnings("unchecked")
    private static void addConnection(int from, int to) {
        TreeSet<Integer> treeSet;

        treeSet = (TreeSet<Integer>) allNodes[from];
        treeSet.add(to);
    }

Is this a correct way of doing this, or is there a better way?

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof

Back to comp.lang.java.programmer | Previous | Next — Next in thread | Find similar | Unroll thread

Thread

Working with an array of TreeSet Cecil Westerhof <Cecil@decebal.nl> - 2016-05-10 13:37 +0200
  Re: Working with an array of TreeSet Eric Douglas <e.d.programmer@gmail.com> - 2016-05-10 04:52 -0700
    Re: Working with an array of TreeSet Cecil Westerhof <Cecil@decebal.nl> - 2016-05-10 15:07 +0200
  Re: Working with an array of TreeSet Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-05-10 08:03 -0400
  Re: Working with an array of TreeSet Marcel Mueller <news.5.maazl@spamgourmet.org> - 2016-05-10 18:19 +0200
    Re: Working with an array of TreeSet Cecil Westerhof <Cecil@decebal.nl> - 2016-05-10 23:22 +0200
      Re: Working with an array of TreeSet Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-05-10 20:14 -0400
        Re: Working with an array of TreeSet Cecil Westerhof <Cecil@decebal.nl> - 2016-05-11 09:05 +0200
          Re: Working with an array of TreeSet FredK <fred.l.kleinschmidt@gmail.com> - 2016-05-11 14:33 -0700
            Re: Working with an array of TreeSet Lew <lewbloch@gmail.com> - 2016-05-11 14:45 -0700

csiph-web