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How to get the path of a running JAR file?

... One more note: While calling this function from the Jar, the name of the jar is appended at the end for me, therefore had to execute: path.substring(0, path.lastIndexOf("/") + 1); – will824 Oct 5 '11 at 15:29...
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Best practices to test protected methods with PHPUnit

... not be coupled with the test. This makes refactoring impossible and eventually you don't test what needs to be tested. You need to test them indirectly using public methods. If you find this difficult, almost sure that there is a problem with the composition of the class and you need to separate it...
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What is a semaphore?

...s bouncers at a nightclub. There are a dedicated number of people that are allowed in the club at once. If the club is full no one is allowed to enter, but as soon as one person leaves another person might enter. It's simply a way to limit the number of consumers for a specific resource. For exampl...
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When do you use map vs flatMap in RxJava?

...r Exception problem, just throw it with a Non checked exception : RX will call the onError handler for you. Observable.from(jsonFile).map(new Func1<File, String>() { @Override public String call(File file) { try { return new Gson().toJson(new FileReader(file), Object.c...
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Get image data url in JavaScript?

...on. The images seem very similar/the same, still the Javascripted one is smaller and I'd love them to be exactly the same. One more thing: the input image is a small (594 bytes), 28x30 PNG with transparent background -- if that changes anything. – Detariael Ju...
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One DbContext per web request… why?

...the DbContext caches data, it gets stale pretty soon. This will get you in all sorts of trouble when multiple users/applications work on that database simultaneously (which is very common of course). But I expect you already know that and just want to know why not to just inject a new instance (i.e....
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Purpose of buildscript block in Gradle

...u can use everything that ships with Gradle out-of-the-box. If you additionally want to use third-party plugins, task classes, or other classes (in the build script!), you have to specify the corresponding dependencies in the buildScript block. ...
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Get to UIViewController from UIView?

... All this bs about "you shouldn't do this" is just that. If a view wants to know about its view controller, that is up to the programmer to decide. period. – Daniel Kanaan Dec 7 '15 at ...
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download file using an ajax request

...n as your site. You could always make the AJAX request/window.location a fallback by using some JavaScript to test if download is supported and if not, switching it to call window.location. Original answer You can't have an AJAX request open the download prompt since you physically have to naviga...
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Show Youtube video source into HTML5 video tag?

...controls="controls" class="video-stream" x-webkit-airplay="allow" data-youtube-id="N9oxmRT2YWw" src="http://v20.lscache8.c.youtube.com/videoplayback?sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Cratebypass%2Coc%3AU0hPRVRMVV9FSkNOOV9MRllD&itag=43&ipbits=0&...