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What is the use case of noop [:] in bash?

... I sometimes use while : ; do ... ; done if I want a quick and dirty infinite loop. (Usually there's a sleep in the loop, and I type Ctrl-C to kill it.) – Keith Thompson May 12 '16 at 1:05 ...
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How do you determine the ideal buffer size when using FileInputStream?

...ly inefficient (i.e. if you configured your buffer to read 4100 bytes at a time, each read would require 2 block reads by the file system). If the blocks are already in cache, then you wind up paying the price of RAM -> L3/L2 cache latency. If you are unlucky and the blocks are not in cache yet...
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When do you need to explicitly call a superclass constructor?

...ss instead of the superclass constructor You claim that: At the same time I've also seen instances on here where someone's problem was not explicitly calling super(). Could you give any examples? I can't imagine how that's possible... ...
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How can I perform a culture-sensitive “starts-with” operation from the middle of a string?

... Indeed. Noda Time doesn't want to get into the business of Unicode details :) – Jon Skeet Apr 18 '13 at 8:19 2 ...
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Submit form on pressing Enter with AngularJS

...rective: How can I detect onKeyUp in AngularJS? EDIT (2014-08-28): At the time this answer was written, ng-keypress/ng-keyup/ng-keydown did not exist as native directives in AngularJS. In the comments below @darlan-alves has a pretty good solution with: <input ng-keyup="$event.keyCode == 13 &...
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At runtime, find all classes in a Java application that extend a base class

...e as easy as it is in the .Net world and this answer has saved me a lot of time. – akmad Oct 1 '12 at 19:55 1 ...
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Removing an element from an Array (Java) [duplicate]

...e List intrrface gives you random access, but LinkedList gives O(n) access times instead of O(1). – Tom Hawtin - tackline Mar 13 '09 at 14:24 1 ...
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Where can I learn how to write C code to speed up slow R functions? [closed]

...the tooth (and there have been rumours of a 2nd edition for years). At the time there was simply nothing else. The second in Chambers' "Software for Data Analysis" which is much more recent and has a much nicer R-centric feel -- and two chapters on extending R. Both C and C++ get mentioned. Plus, ...
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Cannot delete directory with Directory.Delete(path, true)

...lution, with the idea of interrupting the current thread to allow Explorer time to release the directory handle. // incomplete! try { Directory.Delete(path, true); } catch (IOException) { Thread.Sleep(0); Directory.Delete(path, true); } But this only works if the open directory is th...
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AES Encryption for an NSString on the iPhone

...I see cleanup functions and separate HMAC and encryption keys in there. If time permits I'll try and take a deeper look tomorrow. Then I'll assign the points. – Maarten Bodewes Aug 14 '12 at 23:06 ...