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Difference between @Before, @BeforeClass, @BeforeEach and @BeforeAll

...blishing a database connection falls into this category. You can move code from @BeforeClass into @Before, but your test run may take longer. Note that the code marked @BeforeClass is run as static initializer, therefore it will run before the class instance of your test fixture is created. In JUni...
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How to draw a line in android

...a line, by using a Canvas or by using a View. Drawing a Line with Canvas From the documentation we see that we need to use the following method: drawLine (float startX, float startY, float stopX, float stopY, Paint paint) Here is a picture: The Paint object just tells Canvas what color to pa...
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std::unique_ptr with an incomplete type won't compile

...a custom Deleter function precludes the use of std::make_unique (available from C++14), as already discussed here. share | improve this answer | follow | ...
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Guid.NewGuid() vs. new Guid()

...the former, because that's the point of a UUID (unless you're receiving it from somewhere else of course). There are cases where you do indeed want an all-zero UUID, but in this case Guid.Empty or default(Guid) is clearer about your intent, and there's less chance of someone reading it expecting a ...
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How to create a WPF Window without a border that can be resized via a grip only?

...ousLeftButtonDown { HwndSource hwndSource = PresentationSource.FromVisual((Visual)sender) as HwndSource; SendMessage(hwndSource.Handle, 0x112, (IntPtr)61448, IntPtr.Zero); } And voila, A WPF window with no border and still movable and resizable without losing compatibility ...
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is_file or file_exists in PHP

...>\n"; } Edit: @Tivie thanks for the comment. Changed number of cycles from 1000 to 10k. The result is: when the file exists: is_file x 10000 1.5651218891144 seconds file_exists x 10000 1.5016479492188 seconds is_readable x 10000 3.7882499694824 seconds when the file does not exist: is...
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What is a servicebus and when do I need one?

...need to go large with a Service Bus? Can it help me implement a push model from the server? Or will it be more pain than gain in this scenario too? – stiank81 Apr 27 '10 at 21:22 ...
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Why is JsonRequestBehavior needed?

... sensitive data, then it should be safe to allow the get. Further reading from my Wrox ASP.NET MVC3 book By default, the ASP.NET MVC framework does not allow you to respond to an HTTP GET request with a JSON payload. If you need to send JSON in response to a GET, you'll need to explicitly a...
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Open files in 'rt' and 'wt' modes

...ce text mode is the default. Other than U, those mode flags come directly from the standard C library's fopen() function, a fact that is documented in the sixth paragraph of the python2 documentation for open(). As far as I know, t is not and has never been part of the C standard, so although many...
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Cooler ASCII Spinners? [closed]

...-~-~-~-~"+nl+ "~ejm97~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-"], // "Fishing" taken from http://asciimator.net/kangaroo/fishing.html ]; for (var s = 0; s < spinners.length; ++s) { var spinner = spinners[s]; var div = document.createElement('div'); var el = document.createElement('pre'); ...