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: Assignment or Initialization?
Date: Mon, 1 Feb 2016 20:55:18 -0500
Organization: Aioe.org NNTP Server
Lines: 42
Message-ID: <n8p2a4$8jg$1@gioia.aioe.org>
References: <assignment-20160201130855@ram.dialup.fu-berlin.de> <n8oa1b$tq9$2@dont-email.me>
NNTP-Posting-Host: ANasIS7Js9OyLQwgloeBLQ.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:38.0) Gecko/20100101 Thunderbird/38.5.1
X-Notice: Filtered by postfilter v. 0.8.2
Xref: csiph.com comp.lang.java.programmer:33558

On 2/1/2016 2:03 PM, 4ndre4 wrote:
> On 01/02/2016 12:23, Stefan Ram wrote:
> [...]
>> final int i;
>> i = 3;
>
> This is illegal.

No. It is valid Java.

> final int i = 3;
>
> is the correct form: initialization.

Both forms are correct (assuming correct means: valid syntax and
well defined semantics).

In this particular case it is the best form.

Bit in more complex cases with if and switch then the original form
becomes necessary.

>                                     You can't declare a final variable
> and THEN assign a value to it, unless you are in a constructor, in which
> case it's still an initialization.

No. That is not how Java is.

In fact the JLS section about final start with:

"Once a final variable has been assigned, it always contains the same 
value."

so final variables do get assigned (in Java terminology).

Ref:

https://docs.oracle.com/javase/specs/jls/se8/html/jls-4.html#jls-4.12.4

Arne