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Groups > comp.lang.java.programmer > #4156
| From | "javax.swing.JSnarker" <gharriman@boojum.mit.edu> |
|---|---|
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Did the sort do anything? |
| Date | 2011-05-16 08:05 -0400 |
| Organization | media lab? |
| Message-ID | <iqr3ts$gro$1@speranza.aioe.org> (permalink) |
| References | (4 earlier) <iqq2b2$jhm$4@lust.ihug.co.nz> <N6-dnSCv9viQDE3QnZ2dnUVZ_v6dnZ2d@earthlink.com> <iqqec4$qi7$2@lust.ihug.co.nz> <kemdnZVnBva8n0zQnZ2dnUVZ_uqdnZ2d@earthlink.com> <iqr3nv$6t5$2@lust.ihug.co.nz> |
On 16/05/2011 8:02 AM, Lawrence D'Oliveiro wrote: > In message<kemdnZVnBva8n0zQnZ2dnUVZ_uqdnZ2d@earthlink.com>, Patricia > Shanahan wrote: > >> Distinct objects probably have different identity hash codes regardless of >> whether their fields all have the same values. > > “By contract, any two objects for which equals(Object) returns true must > return the same hash code value.” > > <http://developer.android.com/reference/java/lang/Object.html#hashCode%28%29> > > “Distinct” would presumably mean “not equal”. First, that applies to equals and hashCode and to == and identityHashCode, but not to equals and identityHashCode. Second, it means that objects that are the same must have the same hash code, but not the other way around. Different objects are allowed to have the same hash code. >> Its existence ensures that program behavior can be affected by object >> sort stability or instability, even if the sort key includes all fields. >> The sort key would have to also include the identity hash code to make >> stability irrelevant. > > The sort key would have to be consistent with the definition of “equality”, > would it not? If it included the identity hash code, it would have to be consistent with ==. -- public final class JSnarker extends JComponent A JSnarker is an NNTP-aware component that asynchronously provides snarky output when the Ego.needsPuncturing() event is fired in cljp.
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Did the sort do anything? Roedy Green <see_website@mindprod.com.invalid> - 2011-05-10 08:06 -0700
Re: Did the sort do anything? markspace <-@.> - 2011-05-10 08:48 -0700
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-14 15:33 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-14 08:56 -0400
Re: Did the sort do anything? Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-05-14 13:54 +0000
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-15 11:16 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-14 23:24 -0400
Re: Did the sort do anything? Tom Anderson <twic@urchin.earth.li> - 2011-05-15 11:20 +0100
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-15 07:00 -0400
Re: Did the sort do anything? Tom Anderson <twic@urchin.earth.li> - 2011-05-15 15:09 +0100
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-16 14:28 +1200
Re: Did the sort do anything? Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-05-15 22:38 -0400
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-16 19:11 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-16 03:47 -0400
Re: Did the sort do anything? markspace <-@.> - 2011-05-16 14:14 -0700
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-15 22:40 -0400
Re: Did the sort do anything? Tom Anderson <twic@urchin.earth.li> - 2011-05-16 21:31 +0100
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-17 09:12 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-16 17:24 -0400
Re: Did the sort do anything? Tom Anderson <twic@urchin.earth.li> - 2011-05-17 13:26 +0100
Re: Did the sort do anything? markspace <-@.> - 2011-05-15 04:56 -0700
Re: Did the sort do anything? Tom Anderson <twic@urchin.earth.li> - 2011-05-15 15:12 +0100
Re: Did the sort do anything? markspace <-@.> - 2011-05-15 07:52 -0700
Re: Did the sort do anything? Michael Wojcik <mwojcik@newsguy.com> - 2011-05-18 11:14 -0400
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-18 13:02 -0400
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-20 18:49 +1200
Re: Did the sort do anything? Robert Klemme <shortcutter@googlemail.com> - 2011-05-20 00:06 -0700
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-20 22:37 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-20 07:09 -0400
Re: Did the sort do anything? Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2011-05-10 16:11 +0000
Re: Did the sort do anything? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2011-05-10 21:26 +0200
Re: Did the sort do anything? Tom Anderson <twic@urchin.earth.li> - 2011-05-11 21:38 +0100
Re: Did the sort do anything? Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2011-05-11 23:27 +0200
Re: Did the sort do anything? Roedy Green <see_website@mindprod.com.invalid> - 2011-05-13 07:40 -0700
Re: Did the sort do anything? Spock <spock@starfleet.ufp> - 2011-05-13 16:56 -0400
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-15 13:58 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-14 23:27 -0400
Re: Did the sort do anything? Robert Klemme <shortcutter@googlemail.com> - 2011-05-11 20:40 +0200
Re: Did the sort do anything? Joshua Cranmer <Pidgeot18@verizon.invalid> - 2011-05-12 10:40 -0400
Re: Did the sort do anything? Robert Klemme <shortcutter@googlemail.com> - 2011-05-13 03:50 -0700
Re: Did the sort do anything? Roedy Green <see_website@mindprod.com.invalid> - 2011-05-13 07:46 -0700
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-16 14:32 +1200
Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-15 19:50 -0700
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-16 17:57 +1200
Re: Did the sort do anything? "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2011-05-16 03:35 -0400
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-16 03:44 -0400
Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-16 03:53 -0700
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-17 00:02 +1200
Re: Did the sort do anything? "javax.swing.JSnarker" <gharriman@boojum.mit.edu> - 2011-05-16 08:05 -0400
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-17 09:12 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-16 17:32 -0400
Re: Did the sort do anything? thoolen <thoolen@tholenbot.thorium> - 2011-05-16 18:09 -0400
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-16 10:02 -0400
Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-16 07:16 -0700
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-17 09:11 +1200
Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-16 15:00 -0700
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-16 21:08 -0400
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-17 19:11 +1200
Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-17 02:34 -0700
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-17 07:19 -0400
[OT] Naming conventions. Was: Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-17 06:52 -0700
Re: Naming conventions. Was: Re: Did the sort do anything? Robert Klemme <shortcutter@googlemail.com> - 2011-05-18 01:22 -0700
Re: Naming conventions. Was: Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-18 03:42 -0700
Re: Naming conventions. Was: Re: Did the sort do anything? RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-05-18 11:53 +0100
Re: Naming conventions. Was: Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-18 13:07 -0400
Re: Naming conventions. Was: Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-18 10:37 -0700
Re: Naming conventions. Was: Re: Did the sort do anything? Heike Svensson <hsvensson.1093x1_q@hotmail.nospam.com.please> - 2011-05-19 01:29 -0400
Re: Naming conventions. Was: Re: Did the sort do anything? Robert Klemme <shortcutter@googlemail.com> - 2011-05-19 08:28 +0200
Re: Naming conventions. Was: Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-19 08:50 -0400
OT: National stereotypes. Was Re: Naming conventions. Was: Re: Did the sort do anything? RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-05-23 10:25 +0100
Re: OT: National stereotypes. Was Re: Naming conventions. Was: Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-23 09:05 -0400
Re: OT: National stereotypes. Was Re: Naming conventions. Was: Re: Did the sort do anything? RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-05-23 17:17 +0100
Re: OT: National stereotypes. Was Re: Naming conventions. Was: Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-23 14:43 -0400
Re: OT: National stereotypes. Was Re: Naming conventions. Was: Re: Did the sort do anything? Steve Sobol <sjsobol@JustThe.net> - 2011-05-23 08:27 -0700
Re: OT: National stereotypes. Was Re: Naming conventions. Was: Re: Did the sort do anything? RedGrittyBrick <RedGrittyBrick@spamweary.invalid> - 2011-05-23 17:39 +0100
Re: OT: National stereotypes. Was Re: Naming conventions. Was: Re: Did the sort do anything? Robert Klemme <shortcutter@googlemail.com> - 2011-05-23 19:16 +0200
Re: OT: National stereotypes. Was Re: Naming conventions. Was: Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-23 14:47 -0400
Re: Did the sort do anything? Boojum <boojum42@gmai1.c0m> - 2011-05-18 07:19 -0400
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-20 18:46 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-20 07:10 -0400
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-17 07:16 -0400
Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-17 06:56 -0700
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-20 18:46 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-20 07:11 -0400
Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-20 05:00 -0700
Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-20 05:20 -0700
Re: Did the sort do anything? Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-21 09:56 +1200
Re: Did the sort do anything? Lew <noone@lewscanon.com> - 2011-05-20 18:12 -0400
Re: Did the sort do anything? Patricia Shanahan <pats@acm.org> - 2011-05-20 21:26 -0700
Re: Did the sort do anything? Gheerax IV <gheerax.4@gmail.invalid> - 2011-05-17 06:58 +0000
Re: Did the sort do anything? Unitary Matrix <umatrix668@gmail.com> - 2011-05-17 00:13 -0700
Re: Did the sort do anything? markspace <-@.> - 2011-05-17 07:41 -0700
Re: Did the sort do anything? Roedy Green <see_website@mindprod.com.invalid> - 2011-05-13 07:42 -0700
Re: Did the sort do anything? Robert Klemme <shortcutter@googlemail.com> - 2011-05-13 21:28 +0200
Re: Did the sort do anything? Tom Anderson <twic@urchin.earth.li> - 2011-05-11 21:32 +0100
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