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IntelliJ IDEA generating serialVersionUID

...ter. At that point the "lightbulb" shows up on the screen. (Try this a few times if it does not work as intended the first time). Then you can click on the create field option to create the uid. Hope this helps people who are stuck on this. – Niyaz Jan 14 '16 a...
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What Makes a Good Unit Test? [closed]

...ow untested regions Repeatable: Tests should produce the same results each time.. every time. Tests should not rely on uncontrollable params. Independent: Very important. Tests should test only one thing at a time. Multiple assertions are okay as long as they are all testing one feature/behavior....
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How do I wait for an asynchronously dispatched block to finish?

...if (![NSThread isMainThread]) { dispatch_semaphore_wait(sema, DISPATCH_TIME_FOREVER); } else { while (dispatch_semaphore_wait(sema, DISPATCH_TIME_NOW)) { [[NSRunLoop currentRunLoop] runMode:NSDefaultRunLoopMode beforeDate:[NSDate dateWithTimeIntervalSinceNow:0]]; } } This sho...
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Argparse: Way to include default values in '--help'?

...d information about the default value to. The exact output for your scan-time option then becomes: --scan-time [SCAN_TIME] Wait SCAN-TIME seconds between status checks. (default: 5) ...
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How do I concatenate const/literal strings in C?

...ized notation always works and the unparenthesized notation only works sometimes, so always use the parenthesized notation; it is a simple rule to remember and is safe. This gets into a religious argument — I've been involved in discussions with those who object before — but the simplicity of '...
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What is the optimal algorithm for the game 2048?

...ing watching. To assess the score performance of the AI, I ran the AI 100 times (connected to the browser game via remote control). For each tile, here are the proportions of games in which that tile was achieved at least once: 2048: 100% 4096: 100% 8192: 100% 16384: 94% 32768: 36% The minimum s...
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How do I sort a list of dictionaries by a value of the dictionary?

... sorted using timsort which is stable, you can call sorted several times to have a sort on several criteria – njzk2 May 29 '13 at 13:41 ...
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How to timeout a thread

I want to run a thread for some fixed amount of time. If it is not completed within that time, I want to either kill it, throw some exception, or handle it in some way. How can it be done? ...
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How to reload a clojure file in REPL

...ure.tools.namespace.repl. Subsequent calls to (refresh) will give you a RuntimeException, "Unable to resolve symbol: refresh in this context." Probably the best thing to do is to either (require 'your.namespace :reload-all), or, if you know you're going to want to refresh your REPL a lot for a given...
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Determine the number of lines within a text file

...much memory as the size of the file. The second merely loops one line at a time so it never has to allocate more than one line's worth of memory at a time. This isn't that important for small files, but for larger files it could be an issue (if you try and find the number of lines in a 4GB file on a...