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>
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

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