Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #17808

Re: hashCode

Show all headers | View raw

  To: Lew
From: =?UTF-8?B?QXJuZSBWYWpow7hq?= <arne@vajhoej.dk>

On 8/12/2012 12:46 AM, Lew wrote:
> Arne Vajh-,j wrote:
>> But with the same performance note. And a big sigh because it
>> seems to want to broaden bad performance from a single class
>> to the entire programming style (multiple classes).
>
> Overriding 'hashCode()' is done for functional reasons, not performance
> reasons. If you fail to override the method, you'll get incorrect
> behavior, for example failing to find a collection member that is
> actually present.

Correct.

But the return constant is a special case. It functions as it should but 
performs very poorly.

Arne

--- BBBS/Li6 v4.10 Dada-1
 * Origin: Prism bbs (1:261/38)
--- Synchronet 3.16a-Win32 NewsLink 1.98
Time Warp of the Future BBS - telnet://time.synchro.net:24

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Re: hashCode "Lew" <lew@1:261/38.remove-m2z-this> - 2012-08-12 18:58 +0000
  Re: hashCode "Arne Vajhøj" <������
høj@1:261/38.remove-nlb-this> - 2012-08-13 18:36 +0000
  Re: hashCode "Arne Vajhøj" <������
høj@1:261/38.remove-nlb-this> - 2012-08-13 18:36 +0000

csiph-web