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Groups > comp.lang.java.programmer > #39594
| From | Arne Vajhøj <arne@vajhoej.dk> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Compare generics (that are numbers) |
| Date | 2020-07-29 14:50 -0400 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <rfsgek$jm4$1@gioia.aioe.org> (permalink) |
| References | <87k0ym73id.fsf@munus.decebal.nl> <rfscpe$doa$1@dont-email.me> <87ft9a6u35.fsf@munus.decebal.nl> |
On 7/29/2020 2:42 PM, Cecil Westerhof wrote:
> Eric Sosman <esosman@comcast-dot-net.invalid> writes:
>> On 7/29/2020 11:19 AM, Cecil Westerhof wrote:
>>> I have a class that starts with:
>>> abstract class CalcValuesGeneric<E> {
>>>
>>> E will be Integer, int, Float or float. (For now, but always a Number.)
>>> What is the best way to determine which of the two is lower?
>>
>> Aside: How can you get `<E>' to be `<int>' or `<float>'? Is that
>> something new? I'm still on Java 8, but the JLS for 14 says "Seq<int>
>> is illegal, as primitive types cannot be type arguments." (4.5)
>
> You are completely right, I was not thinking straight. :'-(
Probably a common miswording.
class CalcValuesGeneric<E> {
void something(E v)
...
cvg.something(x);
E can be Integer or Float but not int or float.
But x can be int and float as well due to auto boxing.
Arne
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Compare generics (that are numbers) Cecil Westerhof <Cecil@decebal.nl> - 2020-07-29 17:19 +0200
Re: Compare generics (that are numbers) Arne Vajhøj <arne@vajhoej.dk> - 2020-07-29 13:21 -0400
Re: Compare generics (that are numbers) Arne Vajhøj <arne@vajhoej.dk> - 2020-07-29 13:27 -0400
Re: Compare generics (that are numbers) Eric Sosman <esosman@comcast-dot-net.invalid> - 2020-07-29 13:48 -0400
Re: Compare generics (that are numbers) Cecil Westerhof <Cecil@decebal.nl> - 2020-07-29 20:42 +0200
Re: Compare generics (that are numbers) Arne Vajhøj <arne@vajhoej.dk> - 2020-07-29 14:50 -0400
Re: Compare generics (that are numbers) Cecil Westerhof <Cecil@decebal.nl> - 2020-07-29 21:53 +0200
Re: Compare generics (that are numbers) Arne Vajhøj <arne@vajhoej.dk> - 2020-07-29 21:32 -0400
Re: Compare generics (that are numbers) Cecil Westerhof <Cecil@decebal.nl> - 2020-07-30 11:33 +0200
Re: Compare generics (that are numbers) Eric Sosman <esosman@comcast-dot-net.invalid> - 2020-07-30 09:03 -0400
Re: Compare generics (that are numbers) Cecil Westerhof <Cecil@decebal.nl> - 2020-07-30 17:00 +0200
Re: Compare generics (that are numbers) Arne Vajhøj <arne@vajhoej.dk> - 2020-07-30 09:21 -0400
Re: Compare generics (that are numbers) Silvio <silvio@internet.com> - 2020-07-30 08:51 +0200
Re: Compare generics (that are numbers) Cecil Westerhof <Cecil@decebal.nl> - 2020-07-30 11:36 +0200
Re: Compare generics (that are numbers) Marcel Mueller <news.5.maazl@spamgourmet.org> - 2020-07-29 20:59 +0200
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