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Chris Ainsley
Software Engineer
Software Engineer
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"Sarge, sarge, we need to call in air support!"
"Hold on son, Windows is updating."


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It's not safe to go alone.
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03/03/2017
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"The Scottish crossbill is a chunky, thick-set finch with a large head and substantial bill. It is very difficult to distinguish from the other members of the crossbill family. It is the UK's only endemic bird species (ie one found nowhere else in the world)."

I have a question about instanceof performance in modern JVMs. Let's say, I have a class that implements 200 interfaces out of 1000 defined interfaces versus a class that implements 1 interface out of 1000 defined interfaces, is there a performance difference between performing an instanceof operation on that class between the two examples? If so, why?

And, let's say that the defined interfaces go up to 10,000 interfaces, would there be a performance cost for any given instanceof operation in that case?

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Christmas time is here again. Have some old-school BBC Christmas idents.

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Not new, but a reminder you can download a free ebook on the making of the R Type port for the ZX Spectrum (by Bob Pope).

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They really nailed the aesthetic.

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Some photos from my recent trip to Florence.

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Sometimes it's good to stop and appreciate a world that never stands still.
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