Path: csiph.com!aioe.org!.POSTED!not-for-mail
From: =?UTF-8?Q?Arne_Vajh=c3=b8j?= <arne@vajhoej.dk>
Newsgroups: comp.lang.java.programmer
Subject: Re: Operators
Date: Wed, 14 Sep 2016 20:23:32 -0400
Organization: Aioe.org NNTP Server
Lines: 43
Message-ID: <nrcpm3$j36$1@gioia.aioe.org>
References: <operators-20160908014132@ram.dialup.fu-berlin.de> <nqsrvj$15u5$1@gioia.aioe.org> <e57ce88e-78d3-4a8f-b278-6b95b3f20f1b@googlegroups.com> <cnehtbtdnt0s9hurm4poi9bni372mpp9d3@4ax.com>
NNTP-Posting-Host: 7SK6yTFfqwlIPNBLl3l7Qg.user.gioia.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 7bit
X-Complaints-To: abuse@aioe.org
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.3.0
X-Notice: Filtered by postfilter v. 0.8.2
Xref: csiph.com comp.lang.java.programmer:35611

On 9/13/2016 10:51 PM, Roedy Green wrote:
> On Tue, 13 Sep 2016 17:47:57 -0700 (PDT), Lew <lewbloch@gmail.com>
> wrote:
>> https://docs.oracle.com/javase/specs/jls/se8/html/jls-3.html#jls-3.12
>
> it says ? and : are both operators independently, contrary to net
> convention.  Obviously oracle is the authority.

In 3.12 they authoritatively says 2.

In 15.25 they authoritatively says 1.

:-)

Maybe they are not authoritatively the authority.

:-)

Or maybe there is a good explanation.

Chapter 3 is about lexical structure.

?: is definitely two lexical elements or tokens.

So:

"38 tokens, formed from ASCII characters, are the operators."

should possible be read:

"38 tokens [in the lexical scan], formed from ASCII characters, are
[used to create] the [37] operators"

In general one should be very careful about interpreting specs
like this.

But in this case it actually makes 3.12:
- consistent with 15.25
- consistent with common terminology

Arne