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Groups > comp.lang.java.programmer > #29677
| Newsgroups | comp.lang.java.programmer |
|---|---|
| Date | 2014-08-15 15:22 -0700 |
| References | <slrnlukhpi.fp3.avl@login.logic.tuwien.ac.at> |
| Message-ID | <0d3ba8f9-586e-428f-9982-15b4c4da4690@googlegroups.com> (permalink) |
| Subject | Re: local constants with switch |
| From | Lew <lewbloch@gmail.com> |
On Tuesday, August 12, 2014 9:56:18 AM UTC-7, Andreas Leitgeb wrote: > It never before occurred to me, that one could define a local constant > within a method (e.g.: final int foo = 42;) AND use it for a case label > in a switch statement. > > I'm a bit curious about whether this is an old-age feature that I've > been missing out for a very long time, or if this just came in recently... Long-time feature. > I had a look at the JLS, too: the description of switch(§14.11) refers to > term constant expression (§15.28), which further refers to constant > variables (§4.12.4), which is about final variables generally. "Constant variables" are not about 'final' variables generally. > From that it wouldn't even be necessary for that variable to be itself > initialized with a constant expression, but I probably just missed that > wording, because it (expectably) doesn't work with a final whose initial > value is not a constant expression itself, nor with a final variable > that isn't immediately initialized. In order to be a constant variable, the variable must be both 'final' and initialized with a constant expression. -- Lew
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local constants with switch Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-08-12 16:56 +0000
Re: local constants with switch Donkey Hottie <donkey@fredriksson.dy.fi> - 2014-08-12 20:30 +0300
Re: local constants with switch Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-08-12 21:15 +0000
Re: local constants with switch Silvio <silvio@internet.com> - 2014-08-12 23:20 +0200
Re: local constants with switch Silvio <silvio@internet.com> - 2014-08-12 23:22 +0200
Re: local constants with switch Lew <lewbloch@gmail.com> - 2014-08-15 15:22 -0700
Re: local constants with switch Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-08-16 00:24 +0000
Re: local constants with switch Roedy Green <see_website@mindprod.com.invalid> - 2014-08-18 23:46 -0700
Re: local constants with switch Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-08-21 13:57 +0000
Re: local constants with switch Joerg Meier <joergmmeier@arcor.de> - 2014-08-21 18:52 +0200
Re: local constants with switch Mike Amling <mamling@chaff.us> - 2014-08-21 13:19 -0500
Re: local constants with switch Joerg Meier <joergmmeier@arcor.de> - 2014-08-21 22:41 +0200
[OT] Re: local constants with switch Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-08-21 14:42 -0400
Re: [OT] Re: local constants with switch Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-08-21 19:21 +0000
Re: [OT] Re: local constants with switch Joshua Cranmer 🐧 <Pidgeot18@verizon.invalid> - 2014-08-21 22:30 -0500
Re: [OT] Re: local constants with switch Silvio <silvio@internet.com> - 2014-08-23 14:01 +0200
Re: [OT] Re: local constants with switch Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-08-23 15:22 +0000
Re: [OT] Re: local constants with switch Arne Vajhøj <arne@vajhoej.dk> - 2014-08-23 22:12 -0400
Re: local constants with switch Jim Gibson <jimsgibson@gmail.com> - 2014-08-21 17:04 -0700
[OT] Re: local constants with switch Eric Sosman <esosman@comcast-dot-net.invalid> - 2014-08-21 20:50 -0400
Re: [OT] Re: local constants with switch Martin Gregorie <martin@address-in-sig.invalid> - 2014-08-22 11:48 +0000
Re: local constants with switch Joerg Meier <joergmmeier@arcor.de> - 2014-08-16 01:18 +0200
Re: local constants with switch Arne Vajhøj <arne@vajhoej.dk> - 2014-08-15 22:44 -0400
Re: local constants with switch Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-08-16 09:01 +0000
Re: local constants with switch Joerg Meier <joergmmeier@arcor.de> - 2014-08-16 12:08 +0200
Re: local constants with switch Arne Vajhøj <arne@vajhoej.dk> - 2014-08-16 20:39 -0400
Re: local constants with switch Joerg Meier <joergmmeier@arcor.de> - 2014-08-17 13:08 +0200
Re: local constants with switch Joerg Meier <joergmmeier@arcor.de> - 2014-08-16 12:07 +0200
Re: local constants with switch Arne Vajhøj <arne@vajhoej.dk> - 2014-08-15 22:42 -0400
Re: local constants with switch Andreas Leitgeb <avl@auth.logic.tuwien.ac.at> - 2014-08-16 09:17 +0000
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