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Groups > comp.lang.java.programmer > #33551 > unrolled thread
| Started by | 4ndre4 <4ndre4@4ndre4.com.invalid> |
|---|---|
| First post | 2016-02-01 19:03 +0000 |
| Last post | 2016-02-03 09:03 -0800 |
| Articles | 3 on this page of 23 — 10 participants |
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Re: Assignment or Initialization? 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-01 19:03 +0000
Re: Assignment or Initialization? Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-01 14:47 -0500
Re: Assignment or Initialization? Knute Johnson <nospam@rabbitbrush.frazmtn.com> - 2016-02-01 12:31 -0800
Re: Assignment or Initialization? Eric Sosman <esosman@comcast-dot-net.invalid> - 2016-02-01 16:03 -0500
Re: Assignment or Initialization? Jerry Stuckle <jstucklex@attglobal.net> - 2016-02-01 19:52 -0500
Re: Assignment or Initialization? Arne Vajhøj <arne@vajhoej.dk> - 2016-02-01 20:46 -0500
Re: Assignment or Initialization? Wayne <nospam@all.invalid> - 2016-02-01 23:39 -0500
Re: Assignment or Initialization? Jerry Stuckle <jstucklex@attglobal.net> - 2016-02-02 09:14 -0500
Re: Assignment or Initialization? 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-02 19:25 +0000
Re: Assignment or Initialization? Eric Douglas <e.d.programmer@gmail.com> - 2016-02-01 13:13 -0800
Re: Assignment or Initialization? 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-02 19:26 +0000
Re: Assignment or Initialization? Arne Vajhøj <arne@vajhoej.dk> - 2016-02-01 20:55 -0500
Re: Assignment or Initialization? 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-02 19:29 +0000
Re: Assignment or Initialization? Eric Douglas <e.d.programmer@gmail.com> - 2016-02-02 11:44 -0800
Re: Assignment or Initialization? Lew <lewbloch@gmail.com> - 2016-02-02 13:16 -0800
Re: Assignment or Initialization? Lew <lewbloch@gmail.com> - 2016-02-02 13:15 -0800
Re: Assignment or Initialization? Arne Vajhøj <arne@vajhoej.dk> - 2016-02-02 18:13 -0500
Re: Assignment or Initialization? Silvio <silvio@internet.com> - 2016-02-03 12:10 +0100
Re: Assignment or Initialization? Eric Douglas <e.d.programmer@gmail.com> - 2016-02-03 05:14 -0800
Re: Assignment or Initialization? Lew <lewbloch@gmail.com> - 2016-02-03 13:39 -0800
Re: Assignment or Initialization? Lew <lewbloch@gmail.com> - 2016-02-02 10:32 -0800
Re: Assignment or Initialization? 4ndre4 <4ndre4@4ndre4.com.invalid> - 2016-02-02 19:22 +0000
Re: Assignment or Initialization? Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2016-02-03 09:03 -0800
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| From | Lew <lewbloch@gmail.com> |
|---|---|
| Date | 2016-02-02 10:32 -0800 |
| Message-ID | <5eea74f1-c7a6-4e75-a6e8-e3c028ad103b@googlegroups.com> |
| In reply to | #33551 |
On Monday, February 1, 2016 at 11:04:09 AM UTC-8, 4ndre4 wrote: > On 01/02/2016 12:23, Stefan Ram wrote: > > [...] > > final int i; > > i = 3; > > This is illegal. Not a bit. > final int i = 3; > > is the correct form: initialization. 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. Sure you can. Look up "definitely assigned" and "definitely unassigned" and the rules for 'final' variables in the JLS. -- Lew
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| From | 4ndre4 <4ndre4@4ndre4.com.invalid> |
|---|---|
| Date | 2016-02-02 19:22 +0000 |
| Message-ID | <n8qvgr$qv6$1@dont-email.me> |
| In reply to | #33562 |
On 02/02/2016 18:32, Lew wrote: [...] > Sure you can. You're right, you can. It means you can initialize a final variable, but not reassign a value to it. -- 4ndre4 "The use of COBOL cripples the mind; its teaching should, therefore, be regarded as a criminal offense." (E. Dijkstra)
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| From | Daniel Pitts <newsgroup.nospam@virtualinfinity.net> |
|---|---|
| Date | 2016-02-03 09:03 -0800 |
| Message-ID | <Zpqsy.229013$Gc6.58365@fx08.iad> |
| In reply to | #33551 |
On 2/1/16 11:03 AM, 4ndre4 wrote:
> On 01/02/2016 12:23, Stefan Ram wrote:
>
> [...]
>> final int i;
>> i = 3;
>
> This is illegal.
>
> final int i = 3;
>
> is the correct form: initialization. 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.
>
You are confusing C++ with Java.
final int i;
if (something()) {
i = 3;
} else {
i = 5;
}
is perfectly valid. As long as it is assigned "exactly once" before it
is read, the compiler is happy.
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