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Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time.

From Eric Sosman <esosman@comcast-dot-net.invalid>
Newsgroups comp.lang.java.help
Subject Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time.
Date 2013-01-15 08:32 -0500
Organization A noiseless patient Spider
Message-ID <kd3lq4$crt$1@dont-email.me> (permalink)
References <f2b43fa0-1da2-4dc4-981b-bb756186050b@googlegroups.com> <atKIs.36232$TH3.9358@newsfe12.iad> <fcf46194-fde7-4096-b2d1-490586ccb83a@googlegroups.com> <kd1v4d$u9n$1@dont-email.me> <2c39444f-5585-4373-a851-6c5aeefa21b3@googlegroups.com>

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On 1/14/2013 11:00 PM, GCRhoads@volcanomail.com wrote:
> On Monday, January 14, 2013 4:59:38 PM UTC-5, Eric Sosman wrote:
>>[...]
>>       Second, if two objects' memory areas happen to be adjacent at
>> some time, how could you detect it?  Or, how could you detect that
>> they are not adjacent?  Can you think of *any* Java code that would
>> behave differently if objects X and Y were or were not adjacent?
>> If not, why do you care where the objects happen to reside?
>
> I care because it has a large effect on the efficiency of the program.  With contiguous memory locations, the program's memory accesses will have a very high locality of reference resulting in a much faster average memory access time due to the computer's memory cache.

     Then you're using the wrong language.

-- 
Eric Sosman
esosman@comcast-dot-net.invalid

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Thread

Array of a Class Type that contains an array where the sizes of the array are not known at compile time. GCRhoads@volcanomail.com - 2013-01-13 17:38 -0800
  Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-01-13 18:56 -0800
    Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. GCRhoads@volcanomail.com - 2013-01-14 13:36 -0800
      Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-01-14 16:59 -0500
        Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. GCRhoads@volcanomail.com - 2013-01-14 20:00 -0800
          Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. GCRhoads@volcanomail.com - 2013-01-14 20:04 -0800
            Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Patricia Shanahan <pats@acm.org> - 2013-01-14 23:44 -0800
            Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-01-15 09:07 -0500
          Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Jukka Lahtinen <jtfjdehf@hotmail.com.invalid> - 2013-01-15 09:06 +0200
          Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Eric Sosman <esosman@comcast-dot-net.invalid> - 2013-01-15 08:32 -0500
          Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Lew <lewbloch@gmail.com> - 2013-01-15 11:19 -0800
          Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Joshua Cranmer <Pidgeot18@verizon.invalid> - 2013-01-15 13:52 -0600
      Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Roedy Green <see_website@mindprod.com.invalid> - 2013-01-15 20:56 -0800
  Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. markspace <markspace@nospam.nospam> - 2013-01-13 19:01 -0800
    Re: Array of a Class Type that contains an array where the sizes of the array are not known at compile time. Lew <lewbloch@gmail.com> - 2013-01-13 21:39 -0800

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