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Java 8: performance of Streams vs Collections

I'm new to Java 8. I still don't know the API in depth, but I've made a small informal benchmark to compare the performance of the new Streams API vs the good old Collections. ...
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List of Big-O for PHP functions

After using PHP for a while now, I've noticed that not all built-in PHP functions are as fast as expected. Consider these two possible implementations of a function that finds if a number is prime using a cached array of primes. ...
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C++ Convert string (or char*) to wstring (or wchar_t*)

...f8_source_string); Longer online compilable and runnable example: (They all show the same example. There are just many for redundancy...) http://ideone.com/KA1oty http://ide.geeksforgeeks.org/5pRLSh http://rextester.com/DIJZK52174 Note (old): As pointed out in the comments and explained in h...
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Correct way to use _viewstart.cshtml and partial Razor views?

I'm using _viewstart.cshtml to automagically assign the same Razor Layout to my views. 1 Answer ...
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How to avoid Dependency Injection constructor madness?

..., more coarse-grained interface that hides the interaction between some or all of the fine-grained dependencies you currently require. share | improve this answer | follow ...
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How do you configure Django for simple development and deployment?

...leased which is probably a better option for most people than doing it manually. If you would prefer to do things manually, my earlier answer still applies: I have multiple settings files. settings_local.py - host-specific configuration, such as database name, file paths, etc. settings_developme...
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What to do about a 11000 lines C++ source file?

...t. Move this into its own file, and for that matter into its own class, in all branches. Because it's stable, this won't cause (many) "awkward" merges that have to be applied to a different file from the one they were originally made on, when you merge the change from one branch to another. Repeat. ...
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How to install the JDK on Ubuntu Linux

I am trying to install the Java Development Kit (JDK) on Ubuntu Linux distribution, but I am unable to install it. 33 A...
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jQuery - Detect value change on hidden input field

...es across this thread. Changes in value to hidden elements don't automatically fire the .change() event. So, wherever it is that you're setting that value, you also have to tell jQuery to trigger it. function setUserID(myValue) { $('#userid').val(myValue) .trigger('change');...
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Intermittent log4net RollingFileAppender locked file issue

... Try adding <lockingModel type="log4net.Appender.FileAppender+MinimalLock" /> to your <appender /> element. There is some performance impact because this means that log4net will lock the file, write to it, and unlock it for each write operation (as opposed to the default behavior,...