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Groups > comp.lang.java.programmer > #25641

Re: JLS 3/e -- Lots Of Errors

From Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand>
Newsgroups comp.lang.java.programmer
Subject Re: JLS 3/e -- Lots Of Errors
Followup-To comp.lang.java.programmer
Date 2011-02-07 15:48 +1300
Organization Geek Central
Message-ID <iinmii$9er$4@lust.ihug.co.nz> (permalink)
References (2 earlier) <iijnm4$d5j$1@news.albasani.net> <iil265$ob4$2@lust.ihug.co.nz> <iil5i6$10m$2@news.eternal-september.org> <iini4a$75r$3@lust.ihug.co.nz> <4d4f5275$0$23761$14726298@news.sunsite.dk>

Followups directed to: comp.lang.java.programmer

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In message <4d4f5275$0$23761$14726298@news.sunsite.dk>, Arne Vajhøj wrote:

> On 06-02-2011 20:32, Lawrence D'Oliveiro wrote:
>
>> In message<iil5i6$10m$2@news.eternal-september.org>, Joshua Cranmer
>> wrote:
>>
>>> On 02/05/2011 09:48 PM, Lawrence D'Oliveiro wrote:
>>>
>>>> In message<iijnm4$d5j$1@news.albasani.net>, Lew wrote:
>>>>
>>>>> On 02/05/2011 07:32 AM, Lawrence D'Oliveiro wrote:
>>>>>
>>>>>> * Section 5.1.8, page 88: no mention of what happens when you unbox a
>>>>>> NaN (the previous page said only that the boxed object had isNaN()
>>>>>> evaluating to true, no mention of what floatValue() or doubleValue()
>>>>>> might return).
>>>>>
>>>>> Nor is such a mention required, therefore its omission is not an
>>>>> error. However, it's pretty clear that if 'isNan()' is true, then
>>>>> 'doubleValue()' must return 'Double.NaN'.
>>>>
>>>> No it is not. The spec carefully refrains from mentioning what
>>>> floatValue() and doubleValue() return.
>>>
>>> Why should it mention it? That is what the documentation on the
>>> respective classes in the Java Standard API is for.
>>
>> If that’s the case, there should be a reference to where it’s properly
>> defined.
> 
> Why?
> 
> People that read the JLS should have read the Java API (and
> a tutorial on Java).

Which one first?

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Thread

Re: JLS 3/e -- Lots Of Errors Arne Vajhøj <arne@vajhoej.dk> - 2011-02-06 21:01 -0500
  Re: JLS 3/e -- Lots Of Errors Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-02-07 19:11 +1300
  Re: JLS 3/e -- Lots Of Errors Arne Vajhøj <arne@vajhoej.dk> - 2011-02-07 20:10 -0500
  Re: JLS 3/e -- Lots Of Errors Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-02-07 15:48 +1300
    Re: JLS 3/e -- Lots Of Errors Arne Vajhøj <arne@vajhoej.dk> - 2011-02-06 22:03 -0500
  Re: JLS 3/e -- Lots Of Errors Ken Wesson <kwesson@gmail.com> - 2011-02-07 04:27 +0100

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