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Android Studio Project Structure (v.s. Eclipse Project Structure)

... For android Studio 3.0.1 and selected all features: Android O latest Android Auto Android things Android wear Android TV C++ support Kotlin support The structure in version 3.0.1 does not look at all like all other answers. Recent structure is as di...
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A gentle tutorial to Emacs/Swank/Paredit for Clojure

...mgmt for finding files, searching, etc helm – incremental completion and selection narrowing framework (or swiper) Other Resources If you’re looking for a setup that already has done most/all of this work for you, a couple options are: prelude spacemacs ...
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The Use of Multiple JFrames: Good or Bad Practice? [closed]

...emo.). Good for: Showing wizard like dialogs. Displaying list, tree etc. selections for items that have an associated component. Flipping between no component and visible component. JInternalFrame/JDesktopPane typically used for an MDI. JTabbedPane for groups of components. JSplitPane A way to di...
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How can building a heap be O(n) time complexity?

...ackward and calling siftDown. No matter which approach you choose, you are selecting the next item in the unsorted portion of the array and performing the appropriate operation to move it into a valid position in the ordered portion of the array. The only difference is performance. ...
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Django dynamic model fields

...y constraint, which may be inefficient on some databases. You will need to select one of the forks, since the official package is no longer maintained and there is no clear leader. The usage is pretty straightforward: import eav from app.models import Patient, Encounter eav.register(Encounter) e...
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Difference between Mock / Stub / Spy in Spock test framework

...ds that do real things. Can be used like a Stub to change return values of select methods. Can be used like a Mock to describe interactions. def subscriber = Spy(SubscriberImpl, constructorArgs: ["Fred"]) def "should send message to subscriber"() { when: publisher.send("hello") th...
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How can I exclude all “permission denied” messages from “find”?

...ten to the file. The grep filters the standard output (you can decide how selective you want it to be, and may have to change the spelling depending on locale and O/S) and the final >&2 means that the surviving error messages (written to standard output) go to standard error once more. The f...
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OPTION (RECOMPILE) is Always Faster; Why?

...y estimates for applying both restrictions and a poor execution plan being selected. The fix in this case would be to create a statistics object linking the two columns, which is not an expensive operation. share | ...
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How to handle Handler messages when activity/fragment is paused

...iving an Intent(message) that was sent to your app in general. To increase selectivity on what type of intents your fragment can receive you can use an intent filter as in the example below. An advantage of this approach is that the Intent(message) can be sent from everywhere whithin your app(a d...
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Difference between Covariance & Contra-variance

...vide so-called “multiple dispatch” or multi methods (this is basically selecting function overloads at run time, e.g. with CLOS) or get the desired effect by using dynamic typing. share | improv...