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Groups > comp.lang.java.programmer > #29273

Re: generics array type check

From markspace <markspace@nospam.nospam>
Newsgroups comp.lang.java.programmer
Subject Re: generics array type check
Date 2014-07-24 08:24 -0700
Organization A noiseless patient Spider
Message-ID <lqr8fc$hs0$1@dont-email.me> (permalink)
References <lqqekm$mtq$1@ariadne.rz.tu-clausthal.de>

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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 )
    {
    }

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Thread

generics array type check Philipp Kraus <philipp.kraus@flashpixx.de> - 2014-07-24 10:03 +0200
  Re: generics array type check Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-07-24 09:13 -0400
  Re: generics array type check markspace <markspace@nospam.nospam> - 2014-07-24 08:24 -0700
    Re: generics array type check Arne Vajhøj <arne@vajhoej.dk> - 2014-07-25 21:14 -0400
  Re: generics array type check Mike Amling <mamling@chaff.us> - 2014-07-25 12:15 -0500
    Re: generics array type check Mike Amling <mamling@chaff.us> - 2014-07-25 13:21 -0500
  Re: generics array type check Arne Vajhøj <arne@vajhoej.dk> - 2014-07-25 21:12 -0400

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