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Groups > comp.lang.java.programmer > #33898
| From | Eric Sosman <esosman@comcast-dot-net.invalid> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: array of HashSet<> |
| Date | 2016-02-28 13:27 -0500 |
| Organization | A noiseless patient Spider |
| Message-ID | <nave1c$gl2$1@dont-email.me> (permalink) |
| References | <tbq1dbl7do4o9bdqo98prrmhe8tm4g6710@4ax.com> <nt85dbdam5cq4v64558is3ba2af6805mec@4ax.com> <naut84$15fq$1@gioia.aioe.org> <nauu45$fbe$1@dont-email.me> <navbsc$me$1@gioia.aioe.org> |
On 2/28/2016 12:47 PM, Arne Vajhøj wrote:
> On 2/28/2016 8:56 AM, Eric Sosman wrote:
>> On 2/28/2016 8:38 AM, Arne Vajhøj wrote:
>>> On 2/28/2016 2:44 AM, Roedy Green wrote:
>>>> I am not trying to arrange the HashSet fields in order in an array. I
>>>> am just trying to do something like this:
>>>>
>>>> private final HashSet<Long>[] hashSets;
>>>
>>>> hashSets = new HashSet[ filesToProcess.length ];
>>>
>>>> I get this error message:
>>>>
>>>> Warning:(104, 20) java: unchecked conversion
>>>> required: java.util.HashSet<java.lang.Long>[]
>>>> found: java.util.HashSet[]
>>>
>>> hashSets = new HashSet<Long>[ filesToProcess.length ]
>>>
>>> should fix that.
>>
>> ... for suitable values of "fix."
>>
>> JLS 15.10.1, Array Creation Expressions: "It is a compile-time
>> error if the ClassOrInterfaceType does not denote a reifiable type."
>
> Ooops.
>
> You are right.
>
> That does not work.
Alas, no. A continuing and damnable annoyance.
> One of the ugly cast and suppress solutions are necessary.
Lew's dodge using a variadic function is nice. Nicer than
casts, anyhow, because it retains type safety.
--
esosman@comcast-dot-net.invalid
"Don't be afraid of work. Make work afraid of you." -- TLM
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array of HashSet<> Roedy Green <see_website@mindprod.com.invalid> - 2016-02-26 16:12 -0800
Re: array of HashSet<> Arne Vajhøj <arne@vajhoej.dk> - 2016-02-26 20:01 -0500
Re: array of HashSet<> Arne Vajhøj <arne@vajhoej.dk> - 2016-02-27 10:05 -0500
Re: array of HashSet<> Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2016-02-26 21:13 -0800
Re: array of HashSet<> Robert Klemme <shortcutter@googlemail.com> - 2016-02-27 11:41 +0100
Re: array of HashSet<> Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2016-02-27 11:54 -0800
Re: array of HashSet<> Lew <lewbloch@gmail.com> - 2016-02-27 15:16 -0800
Re: array of HashSet<> Lew <lewbloch@gmail.com> - 2016-02-27 15:18 -0800
Re: array of HashSet<> Roedy Green <see_website@mindprod.com.invalid> - 2016-02-27 23:44 -0800
Re: array of HashSet<> Lew <lewbloch@gmail.com> - 2016-02-28 01:52 -0800
Re: array of HashSet<> Arne Vajhøj <arne@vajhoej.dk> - 2016-02-28 08:38 -0500
Re: array of HashSet<> Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-28 08:56 -0500
Re: array of HashSet<> Arne Vajhøj <arne@vajhoej.dk> - 2016-02-28 12:47 -0500
Re: array of HashSet<> Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-28 13:27 -0500
Re: array of HashSet<> Sebastian <news@seyweiler.dyndns.org> - 2016-02-28 23:53 +0100
Re: array of HashSet<> Arne Vajhøj <arne@vajhoej.dk> - 2016-02-28 21:16 -0500
Re: array of HashSet<> Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2016-02-28 23:36 -0800
Re: array of HashSet<> Roedy Green <inquiry@mindprod.com> - 2016-06-08 20:08 -0700
Re: array of HashSet<> Andreas Leitgeb <avl@logic.at> - 2016-02-29 13:19 +0000
Re: array of HashSet<> Andreas Leitgeb <avl@logic.at> - 2016-02-29 13:27 +0000
Re: array of HashSet<> Daniel Pitts <usenet@coloraura.com> - 2016-03-06 13:59 -0800
Re: array of HashSet<> Roedy Green <inquiry@mindprod.com> - 2016-06-08 20:10 -0700
Re: array of HashSet<> Lew <lewbloch@gmail.com> - 2016-06-10 12:25 -0700
Re: array of HashSet<> Daniel Pitts <usenet@coloraura.com> - 2016-06-11 12:30 -0700
Re: array of HashSet<> Roedy Green <inquiry@mindprod.com> - 2016-06-12 02:31 -0700
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