Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!eternal-september.org!feeder.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: markspace <markspace@nospam.nospam>
Newsgroups: comp.lang.java.programmer
Subject: Re: generics array type check
Date: Thu, 24 Jul 2014 08:24:23 -0700
Organization: A noiseless patient Spider
Lines: 28
Message-ID: <lqr8fc$hs0$1@dont-email.me>
References: <lqqekm$mtq$1@ariadne.rz.tu-clausthal.de>
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Injection-Date: Thu, 24 Jul 2014 15:24:29 +0000 (UTC)
Injection-Info: mx05.eternal-september.org; posting-host="9358cda03e1e0dfd3c4b757daa608707"; logging-data="18304"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX181BkFCS6DygFDK1Y+IyqRlWboBAxtVoYM="
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0
In-Reply-To: <lqqekm$mtq$1@ariadne.rz.tu-clausthal.de>
Cancel-Lock: sha1:Mx0dS/ILNBJEN+PdRqAMCRkXxHE=
Xref: csiph.com comp.lang.java.programmer:29273

On 7/24/2014 1:03 AM, Philipp Kraus wrote:
> How can I check the generic data type in a correct way to detect the
> array type?


You can't.  Use overloading instead.


    public static void main()
    {
       size( "test" );
       size( new String[]{ "test" } );
       size( new String[][]{ { "test" } } );
    }

    private static void size( Object test )
    {
    }

    private static void size( Object[] test )
    {
    }

    private static void size( Object[][] test )
    {
    }