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Groups > comp.lang.java.help > #2452

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

Date 2013-01-14 23:44 -0800
From Patricia Shanahan <pats@acm.org>
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.
References (1 earlier) <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> <9e7b5131-a40b-4487-9173-c8c886a99b9d@googlegroups.com>
Message-ID <8JmdndQE9PBDlWjNnZ2dnUVZ_s-dnZ2d@earthlink.com> (permalink)

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On 1/14/2013 8:04 PM, GCRhoads@volcanomail.com wrote:
> On Monday, January 14, 2013 11:00:14 PM UTC-5,
> gcrh...@volcanomail.com wrote:
...
>> 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.
>
> Also, garbage collection shouldn't be a problem in this case because
> there won't be any.  All the memory gets allocated at the beginning
> of the program and everything remains accessible throughout the
> entire execution of the program.
>

If you need this sort of direct control over memory, and do not need
garbage collection, maybe Java is not the best choice of language for
your application.

Patricia

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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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