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Re: wrong behaviour when checking the equality of two elements of an ArrayList<Integer> using the operator "=="

Subject: Re: wrong behaviour when checking the equality of two elements of an ArrayList<Integer> using the operator "=="
From: Francesca De Angeli <email@hidden>
Date: Tue, 10 Jul 2007 09:36:24 +0100
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Is the fact that == returns true a problem, or simply a curiosity? If it's a problem, please explain how it's a problem.

It was mostly a curiosity. I had made a comparison with different JVMs on Linux and I didn't get the same result. In my mind I was always comparing two different objects and therefore I didn't understand why the result of the comparison (done with ==) was true. In general when comparing Integer objects for equality I will use the Integer.equals() method and not the == operator.

Thanks to all for the detailed answers. This has been most illuminating.
Cheers,
Francesca
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References:
	>Re: wrong behaviour when checking the equality of two elements of an ArrayList<Integer> using the operator "==" (From: Greg Guerin <email@hidden>)

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