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Re: [OT] Re: missing import java.lang.Comparable

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From Eric Sosman <esosman@comcast-dot-net.invalid>
Newsgroups comp.lang.java.programmer
Subject Re: [OT] Re: missing import java.lang.Comparable
Date Mon, 11 Jul 2016 13:56:20 -0400
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On 7/11/2016 12:26 PM, Martin Gregorie wrote:
> On Mon, 11 Jul 2016 05:30:50 -0700, Eric Douglas wrote:
>
>> On Friday, July 8, 2016 at 8:32:14 PM UTC-4, Arne Vajhøj wrote:
>>> I don't think this example shows what you think it shows.
>>>
>>> It really shows that String.valueOf has an impact on the result.
>>>
>>> Arne
>>
>> Converting to a String is what makes it work.
>>
> Disagree: all you've shown is that integer arithmetic is exact regardless
> of how the value is stored, while floating point representations are
> inexact. This is why you (should have been|were) taught that you should
> never compare floating point numbers for equality, instead you check that
> the two values differ by less than the least significant digit, i.e.
>
> float a = 0.002;
> float b = 0.005 - 0.003;
> if (Math.abs(a - b) < 0.0005)
>    System.out.println("a and b differ by less than 0.0005");
>
> As others have said, use floats or doubles for science and engineering
> and int, long, BigInteger or BigDecimal for financials.

     I suspect his misunderstanding comes not so much from being unaware
of computational approximations (rounding, etc.) as from matters of
representation.  He's disturbed that 0.0001 + 0.0002 is not exactly
0.0003, but this is less from inaccuracy of computation than from
inaccuracy of representation.  Neither the addend nor the augend is
exactly representable as a `double', so Java substitutes the best
approximations it can ("close enough for jazz").  The `+' thus adds
two values that are not quite what he thinks they are, and gets a sum
that is not quite what he thinks it should be (another value, as it
happens, that a `double' cannot represent).

     I sometimes try to help people understand this by asking them to
use ordinary decimal arithmetic to compute the fraction of a week that
is a weekend.  That is, I ask them to compute two-sevenths as a decimal
fraction -- and I invite them to carry the computation out to as many
places as they please, until they're satisfied that the answer is exact.
Then I tell them that binary arithmetic has the same problem with any
denominator that is not a power of two, and they usually get the point.
Maybe Eric Douglas will, too (although since he proffered the specious
claim that 1 + 1 yields 1.99999999999998, this is far from certain).

-- 
esosman@comcast-dot-net.invalid
"Don't be afraid of work. Make work afraid of you." -- TLM

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Thread

missing import java.lang.Comparable Roedy Green <inquiry@mindprod.com> - 2016-06-28 21:34 -0700
  Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-06-29 05:56 +0000
    Re: missing import java.lang.Comparable Roedy Green <inquiry@mindprod.com> - 2016-06-28 23:59 -0700
      Re: missing import java.lang.Comparable Matthias Wiehl <mw@kwarg.de> - 2016-06-29 09:52 +0200
        Re: missing import java.lang.Comparable Roedy Green <inquiry@mindprod.com> - 2016-06-29 01:16 -0700
          Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-06-29 06:38 -0700
        Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-30 13:24 +0000
          Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-06-30 06:37 -0700
            Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-06-30 10:19 -0400
              Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-06-30 07:47 -0700
                Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-06-30 11:17 -0400
                Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-30 18:23 +0000
                Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-06-30 15:24 -0400
                Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-06-30 12:47 -0700
                Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-06-30 16:38 -0400
                Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-30 21:09 +0000
                Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-01 06:45 +0000
                Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-01 05:03 -0700
                Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-03 20:46 +0000
                Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-01 15:21 -0700
                Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-03 21:10 +0000
                Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-04 16:08 -0700
                Program proof Mike Amling <mamling@chaff.us> - 2016-07-05 11:23 -0500
                Re: Program proof Andreas Leitgeb <avl@logic.at> - 2016-07-05 18:08 +0000
                Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-05 17:23 +0000
                Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-05 14:28 -0700
                Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-07 15:22 +0000
                Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-07 11:44 -0400
                Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-07 12:57 -0400
                Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-07 18:29 +0000
                [OT] Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-07 15:48 -0400
                Re: [OT] Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-08 08:01 +0000
                Re: [OT] Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-08 08:25 -0400
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-08 06:55 -0700
                Re: [OT] Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-08 10:16 -0400
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-08 07:35 -0700
                Re: [OT] Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-08 18:07 +0000
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-08 12:54 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-08 16:29 -0400
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-08 14:06 -0700
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-08 20:11 -0400
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-15 11:37 -0700
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-15 16:36 -0400
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-15 15:49 -0700
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-15 22:09 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-16 13:04 +0000
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-18 13:08 -0700
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-18 19:56 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-08 20:59 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-09 11:57 +0000
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-09 09:39 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-09 14:43 +0000
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-09 11:15 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-09 09:46 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-09 15:21 +0000
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-09 11:27 -0400
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-15 11:39 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-15 15:38 -0400
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-15 15:52 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-15 19:19 -0400
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-18 13:10 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-18 16:26 -0400
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-18 13:58 -0700
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-18 16:30 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-18 20:24 -0400
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-19 05:14 -0700
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-19 20:22 -0400
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-19 10:31 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-19 16:37 -0400
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-19 14:44 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-19 21:16 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-19 21:54 +0000
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-19 20:17 -0400
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-20 12:01 -0700
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-20 21:28 +0000
                Re: [OT] Re: missing import java.lang.Comparable Gene Wirchenko <genew@telus.net> - 2016-07-20 16:14 -0700
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-19 20:18 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-19 21:33 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-19 21:56 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-19 23:47 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-22 23:31 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-23 10:24 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-23 21:26 -0400
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-23 19:23 -0700
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-23 23:08 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-24 10:44 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-24 10:44 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-20 16:04 -0400
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-20 14:51 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-20 22:57 -0400
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-21 11:38 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-21 15:57 -0400
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-21 13:45 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-21 21:00 -0400
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-22 15:28 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-22 19:34 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-22 23:36 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-23 10:25 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-23 10:58 +0000
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-23 09:32 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-22 23:34 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-23 10:25 -0400
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-23 17:04 -0700
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-24 10:46 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-23 21:23 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-24 10:47 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-22 23:40 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-18 20:02 -0400
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-18 20:26 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-18 20:35 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-18 19:59 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-08 23:36 +0000
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-08 20:09 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-09 12:51 +0000
                Re: [OT] Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-09 09:15 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-09 14:30 +0000
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-09 09:44 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-09 14:37 +0000
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-09 11:14 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-09 20:09 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-10 01:11 +0000
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-09 21:52 -0400
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-10 10:34 +0000
                Re: [OT] Re: missing import java.lang.Comparable Jerry Stuckle <jstucklex@attglobal.net> - 2016-07-08 21:03 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-08 20:32 -0400
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-11 05:30 -0700
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-11 16:26 +0000
                Re: [OT] Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-11 13:56 -0400
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-11 10:59 -0700
                Re: [OT] Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-11 15:09 -0400
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-11 13:44 -0700
                Re: [OT] Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-11 17:21 -0400
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-11 10:56 -0700
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-11 11:49 -0700
                Re: [OT] Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-07-11 21:00 +0000
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-11 22:30 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-11 22:36 -0400
                Re: [OT] Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-07-12 11:37 -0700
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-12 13:01 -0700
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-12 20:31 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-11 22:13 -0400
                Re: [OT] Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-08 20:18 -0400
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-08 15:14 -0700
                Re: [OT] Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-08 17:59 +0000
                Re: [OT] Re: missing import java.lang.Comparable Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-07-08 14:34 -0400
                Re: [OT] Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-08 15:18 -0700
                Re: [OT] Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-08 23:50 +0000
                Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-07 13:18 -0700
                Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-07 16:59 -0400
                Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-07-08 15:05 -0700
                Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-08 19:51 -0400
                Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-07 17:07 -0400
                Re: missing import java.lang.Comparable Martin Gregorie <martin@address-in-sig.invalid> - 2016-06-30 20:44 +0000
              Re: missing import java.lang.Comparable Arne Vajhøj <arne@vajhoej.dk> - 2016-07-07 16:56 -0400
            Re: missing import java.lang.Comparable a.laforgia@gmail.com - 2016-06-30 08:32 -0700
              Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-06-30 08:59 -0700
                Re: missing import java.lang.Comparable a.laforgia@gmail.com - 2016-06-30 09:06 -0700
                Re: missing import java.lang.Comparable Eric Douglas <e.d.programmer@gmail.com> - 2016-06-30 09:35 -0700
              Re: missing import java.lang.Comparable Lew <lewbloch@gmail.com> - 2016-06-30 11:18 -0700
            Re: missing import java.lang.Comparable Andreas Leitgeb <avl@logic.at> - 2016-07-03 20:57 +0000

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