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Re: How to convert image into Hex 2 Dimensional Array?

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From Daniel Pitts <newsgroup.nospam@virtualinfinity.net>
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Subject Re: How to convert image into Hex 2 Dimensional Array?
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On 5/10/13 10:02 AM, Daniele Futtorovic wrote:
> On 10/05/2013 18:46, Daniel Pitts allegedly wrote:
>> On 5/9/13 7:05 PM, Arne Vajhøj wrote:
>>> On 5/8/2013 11:18 PM, Eric Sosman wrote:
>>>> On 5/8/2013 10:03 PM, Arne Vajhøj wrote:
>>>>> [...]
>>>>>> I would still expect the byte version to end up
>>>>>> with width*height Byte objects.
>>>>>>
>>>>>> If there are no null and no reused objects, then
>>>>>> I can not see how that can be avoided.
>>>>>
>>>>> Are you saying that Java will intern so aggressively
>>>>> that there will be reused objects?
>>>>
>>>>       JLS, section 5.1.7:
>>>>
>>>>       "If the value p being boxed is true, false, a byte,
>>>>       or a char in the range \u0000 to \u007f, or an int or
>>>>       short number between -128 and 127 (inclusive), then let
>>>>       r1 and r2 be the results of any two boxing conversions
>>>>       of p. It is always the case that r1 == r2."
>>>
>>> Ah - so max. 256 objects in case of auto boxing.
>> If I'm reading that right, that is only 128 for bytes and chars. Every
>> byte with a high-bit set will be autoboxed to a new object.
>>
>> I'm surprised by this actually. I can see the justification in chars,
>> but bytes I would have just go with the full 00 to FF
>
> I don't think you're reading it right. Firstly, there's a comma after
> "byte". Secondly, given how little sense Unicode notation makes for
> bytes, it is doubtful that it should be meant to apply to them. And
> finally, both the source code and Javadoc for Byte#valueOf are
> unambiguous; to quote the latter: "all byte values are cached".

Eats, shoots, and leaves.  Yes, I missed the comma. That totally makes 
sense now.  What threw me off the most was that they listed "values" 
(true/false), then "a type" (byte), and then "values for types".

I might have worded it differently, but it is unambiguous as is.

I think my preferred structure would have been "If the value being boxed 
is is a char in the range ... or is a short or int in the range ... or 
is any boolean or byte value ..."

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Thread

How to convert image into Hex 2 Dimensional Array? sout saret <saretmis097@gmail.com> - 2013-05-07 23:30 -0700
  Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 09:06 +0100
    Re: How to convert image into Hex 2 Dimensional Array? Joerg Meier <joergmmeier@arcor.de> - 2013-05-08 12:29 +0200
      Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 13:28 +0100
    Re: How to convert image into Hex 2 Dimensional Array? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-05-08 15:19 +0200
      Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 14:57 +0100
        Re: How to convert image into Hex 2 Dimensional Array? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-05-08 08:22 -0700
          Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 17:03 +0100
            Re: How to convert image into Hex 2 Dimensional Array? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-05-08 13:44 -0700
          Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 17:48 +0100
            Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-08 21:10 -0400
          Re: How to convert image into Hex 2 Dimensional Array? Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-05-08 12:52 -0400
        Re: How to convert image into Hex 2 Dimensional Array? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-05-08 17:32 +0200
          Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 17:17 +0100
            Re: How to convert image into Hex 2 Dimensional Array? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-05-08 18:46 +0200
              Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 18:25 +0100
                Re: How to convert image into Hex 2 Dimensional Array? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-05-08 23:24 +0200
        Re: How to convert image into Hex 2 Dimensional Array? Joshua Cranmer 🐧 <Pidgeot18@verizon.invalid> - 2013-05-08 11:46 -0500
        Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-08 21:04 -0400
          Re: How to convert image into Hex 2 Dimensional Array? Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-05-08 21:45 -0400
            Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-08 21:59 -0400
              Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-08 22:03 -0400
                Re: How to convert image into Hex 2 Dimensional Array? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-05-09 04:09 +0200
                Re: How to convert image into Hex 2 Dimensional Array? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-05-09 04:09 +0200
                Re: How to convert image into Hex 2 Dimensional Array? Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-05-08 23:18 -0400
                Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-09 22:05 -0400
                Re: How to convert image into Hex 2 Dimensional Array? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-05-10 09:46 -0700
                Re: How to convert image into Hex 2 Dimensional Array? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-05-10 19:02 +0200
                Re: How to convert image into Hex 2 Dimensional Array? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-05-10 11:00 -0700
                Re: How to convert image into Hex 2 Dimensional Array? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2013-05-10 23:42 +0200
                Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-10 18:20 -0400
    Re: How to convert image into Hex 2 Dimensional Array? Jeff Higgins <jeff@invalid.invalid> - 2013-05-08 12:43 -0400
      Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 18:45 +0100
  Re: How to convert image into Hex 2 Dimensional Array? Jeff Higgins <jeff@invalid.invalid> - 2013-05-08 11:18 -0400
  Re: How to convert image into Hex 2 Dimensional Array? Joshua Cranmer 🐧 <Pidgeot18@verizon.invalid> - 2013-05-08 11:52 -0500
    Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 18:40 +0100
      Re: How to convert image into Hex 2 Dimensional Array? Joshua Cranmer 🐧 <Pidgeot18@verizon.invalid> - 2013-05-08 13:54 -0500
        Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-08 20:43 +0100
        Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-11 09:28 +0100
          Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-11 08:50 -0400
            Re: How to convert image into Hex 2 Dimensional Array? lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-05-11 15:00 +0100
              Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-12 21:45 -0400
  Re: How to convert image into Hex 2 Dimensional Array? Manuel Dahmen <manuel.dahmen@gmail.com> - 2013-05-08 15:38 -0700
  Re: How to convert image into Hex 2 Dimensional Array? Roedy Green <see_website@mindprod.com.invalid> - 2013-05-11 13:33 -0700
    Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-12 21:48 -0400
      Re: How to convert image into Hex 2 Dimensional Array? markspace <markspace@nospam.nospam> - 2013-05-12 20:49 -0700
        Re: How to convert image into Hex 2 Dimensional Array? Arne Vajhøj <arne@vajhoej.dk> - 2013-05-13 19:08 -0400
        Re: How to convert image into Hex 2 Dimensional Array? Roedy Green <see_website@mindprod.com.invalid> - 2013-05-15 03:45 -0700
        Re: How to convert image into Hex 2 Dimensional Array? Roedy Green <see_website@mindprod.com.invalid> - 2013-05-15 03:50 -0700

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