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Java executors: how to be notified, without blocking, when a task completes?

...h I need to submit to an executor service. I want them processed one at a time. The simplest way I can think of is to: 11...
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How do I represent a hextile/hex grid in memory?

...ly explain why you need to when axial can just technically be cube all the time if you just ignore the s variable, why do both types exist at all. – WDUK Aug 20 at 23:54 ...
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Cosmic Rays: what is the probability they will affect a program?

...says that there can be up to 25000-75000 one-bit FIT per Mbit (failures in time per billion hours), which is equal to 1 - 5 bit errors per hour for 8GB of RAM after my calculations. Paper says the same: "mean correctable error rates of 2000–6000 per GB per year". 2012 Sandia report "Detection and ...
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How to fix Python indentation

...e when |+ex_extra| feature was disabled at compile time. For example, if you simply type :ret all your tabs will be expanded into spaces. You may want to :se et " shorthand for :set expandtab to make sure that any new lines will not use literal tabs. If you're ...
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What is the fastest way to send 100,000 HTTP requests in Python?

... How much faster can you go if you want to talk with the SAME server each time, by persisting the connection? Can this even be done across threads, or with one persistent connection per thread? – mdurant Jan 12 '15 at 15:25 ...
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Add custom messages in assert?

... @TUIlover, that’s not how C string literals work; they’re compile-time constants and their use in this context is trivially optimized away. There is no runtime cost. – zneak Aug 9 '19 at 8:46 ...
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How to prevent Browser cache for php site

... https://css-tricks.com/can-we-prevent-css-caching/ The solution: Append timestamp as the query part of the URI for the linked file. (Can be used for css, js, images etc.) For development: <link rel="stylesheet" href="style.css?<?php echo date('Y-m-d_H:i:s'); ?>"> For production (wh...
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How to do a regular expression replace in MySQL?

... For the next time I need it, here's syntax for changing a whole column: UPDATE table SET Name = REGEXP_REPLACE(Name, "-2$", "\\1") This removes -2 from abcxyz-2 from a whole column at once. – Josiah ...
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Hosting a Maven repository on github

...------------------------------------------------------------- [INFO] Total time: 8.595s [INFO] Finished at: Sun Dec 23 11:23:03 MST 2012 [INFO] Final Memory: 9M/81M [INFO] ------------------------------------------------------------------------ Visit github.com in your browser, select the mvn-repo...
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Why doesn't Dijkstra's algorithm work for negative weight edges?

... edge weights are all positive numbers, because then we wouldn't waste our time considering paths that can't be shorter. So I say that when running this algorithm if x is extracted from Q before y, then its not possible to find a path - which is shorter. Let me explain this with an example, As y ...