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Groups > comp.lang.java.programmer > #39439
| From | Arne Vajhøj <arne@vajhoej.dk> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Character.isIdentifierIgnorable |
| Date | 2020-04-24 20:29 -0400 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <r80097$r5a$1@gioia.aioe.org> (permalink) |
| References | <r7vqa2$ekn$1@dont-email.me> <r7vqo0$15g0$1@gioia.aioe.org> <r7vv8t$8a7$1@dont-email.me> |
On 4/24/2020 8:12 PM, Jeff Higgins wrote:
> On 4/24/20 6:54 PM, Arne Vajhøj wrote:
>>>
>>> For instance I can do:
>>>
>>> class IdentifierTest {
>>> class _\u0001 {}
>>> class _\u0001\u0001 {}
>>> }
>>>
>>> and javac doesn't complain
>
>>
>> My javac complains.
>>
>> :-)
> Well, I guess that is what I get for not doing what I said.
>
> I used the Eclipse Java compiler to compile my example above.
> When I compile and run in Eclipse using OpenJDK 8 and 11 :
>
> class Z {
> public static void main(String[] args) {
> class _\u0001{String z = "z";}
> class _\u0001\u0001{String z = "zz";}
> _\u0001 Z = new _\u0001();
> _\u0001\u0001 ZZ = new _\u0001\u0001();
> System.out.println(Z.z + ZZ.z);
> }
> }
> prints "zzz"
With Eclipse 2019-12 and Java 8 I get a weird build error
about illegal char.
> That's worrisome!
I think we are in the far out corners of the language.
Arne
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Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-24 18:46 -0400
Re: Character.isIdentifierIgnorable Arne Vajhøj <arne@vajhoej.dk> - 2020-04-24 18:54 -0400
Re: Character.isIdentifierIgnorable Martin Gregorie <martin@mydomain.invalid> - 2020-04-24 23:07 +0000
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-24 20:12 -0400
Re: Character.isIdentifierIgnorable Arne Vajhøj <arne@vajhoej.dk> - 2020-04-24 20:29 -0400
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-24 20:37 -0400
Re: Character.isIdentifierIgnorable Arne Vajhøj <arne@vajhoej.dk> - 2020-04-24 22:24 -0400
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-24 23:36 -0400
Re: Character.isIdentifierIgnorable Arne Vajhøj <arne@vajhoej.dk> - 2020-04-25 12:57 -0400
Re: Character.isIdentifierIgnorable Arne Vajhøj <arne@vajhoej.dk> - 2020-04-25 13:01 -0400
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-25 13:39 -0400
Re: Character.isIdentifierIgnorable Arne Vajhøj <arne@vajhoej.dk> - 2020-04-25 13:51 -0400
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-25 14:36 -0400
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-24 23:41 -0400
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-24 20:25 -0400
Re: Character.isIdentifierIgnorable Arne Vajhøj <arne@vajhoej.dk> - 2020-04-24 20:32 -0400
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-24 20:42 -0400
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-25 09:53 -0400
Re: Character.isIdentifierIgnorable Arne Vajhøj <arne@vajhoej.dk> - 2020-04-25 12:55 -0400
Re: Character.isIdentifierIgnorable Jeff Higgins <invalid@invalid.org> - 2020-04-25 13:43 -0400
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