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Groups > comp.lang.java.programmer > #17464

Re: automatically initialized to null?

From Eric Sosman <esosman@ieee-dot-org.invalid>
Newsgroups comp.lang.java.programmer
Subject Re: automatically initialized to null?
Date 2012-08-09 14:34 -0400
Organization A noiseless patient Spider
Message-ID <k00vrg$voo$3@dont-email.me> (permalink)
References <286af465-25a1-4486-84ec-fe4d4adf6dd4@googlegroups.com> <jvuhlr$m6q$1@dont-email.me> <6fb31c61-1c6a-4652-853b-86382deb4bcf@googlegroups.com>

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On 8/9/2012 12:12 PM, bob smith wrote:
> On Wednesday, August 8, 2012 3:20:08 PM UTC-5, markspace wrote:
>> On 8/8/2012 12:23 PM, bob smith wrote:
>>
>>> If I have
>>> Bitmap[] bmps = new Bitmap[256];
>>> Are all 256 positions automatically initialized to null?
>>
>> Yes.  I'm sure that's in the JLS someplace.  And just about every noob
>> tutorial and "Learn Java" book.  But yes, all uninitialized static or
>> instance fields and all arrays are set to null.  Note this excludes
>> local variables.
>
> Why does Eclipse seem to frequently tell me to explicitly initialize a reference to null?
>
> Is it kind of being paranoid?

     Did you see the part about "excludes local variables?"  Maybe
that's what Eclipse is complaining about, and not about class or
instance fields, or array elements.

-- 
Eric Sosman
esosman@ieee-dot-org.invalid

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Thread

automatically initialized to null? bob smith <bob@coolfone.comze.com> - 2012-08-08 12:23 -0700
  Re: automatically initialized to null? markspace <-@.> - 2012-08-08 13:20 -0700
    Re: automatically initialized to null? Mike Winter <usenet@michael-winter.me.invalid> - 2012-08-08 21:32 +0100
      Re: automatically initialized to null? Lew <lewbloch@gmail.com> - 2012-08-08 17:36 -0700
        Re: automatically initialized to null? Jim Gibson <jimsgibson@gmail.com> - 2012-08-08 18:06 -0700
    Re: automatically initialized to null? bob smith <bob@coolfone.comze.com> - 2012-08-09 09:12 -0700
      Re: automatically initialized to null? Eric Sosman <esosman@ieee-dot-org.invalid> - 2012-08-09 14:34 -0400
        Re: automatically initialized to null? bob smith <bob@coolfone.comze.com> - 2012-08-10 08:53 -0700
  Re: automatically initialized to null? Roedy Green <see_website@mindprod.com.invalid> - 2012-08-09 02:38 -0700

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