Groups > comp.lang.java.programmer > #17839

Re: hashCode

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From	"Lew" <lew@1:261/38.remove-odu-this>
Subject	Re: hashCode
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Date	Mon, 13 Aug 2012 19:38:29 GMT
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  To: Lew
From: "Lew" <lew@1:261/38.remove-nlb-this>

  To: Lew
From: "Lew" <lew@1:261/38.remove-m2z-this>

  To: Lew
From: Lew <noone@lewscanon.com>

Lew wrote:
> Jan Burse wrote:
>> Maybe it would make sense to spell out what the contract
>> for hashCode() is. Well the contract is simply, the
>> following invariant should hold:
>>
>>     /* invariant that should hold */
>>     if a.equals(b) then a.hashCode()==b.hashCode()
>
> True, but if you read the specification for 'hashCode()' fully, that is not
> the entire contract, only the compiler-enforceable part of it.

Oooops!

I made a mistake.

Not even that is compiler-enforceable.

--
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

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Re: hashCode "Lew" <lew@1:261/38.remove-odu-this> - 2012-08-13 19:38 +0000

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