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How does Junit @Rule work?

...n a more generic way. For instance, ExternalResource executes code before and after a test method, without having to use @Before and @After. Using an ExternalResource rather than @Before and @After gives opportunities for better code reuse; the same rule can be used from two different test classes....
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Disable Auto Zoom in Input “Text” tag - Safari on iPhone

... The browser will zoom if the font-size is less than 16px and the default font-size for form elements is 11px (at least in Chrome and Safari). Additionally, the select element needs to have the focus pseudo-class attached. input[type="color"], input[type="date"], input[type="datet...
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Platform independent size_t Format specifiers in c?

...t), l (for long), ll (for long long), j (for intmax_t), t (for ptrdiff_t), and L (for long double). See §7.19.6.1 (7) of the C99 standard. share | improve this answer | fol...
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Performance of Java matrix math libraries? [closed]

...ults are as follows. Using multithreaded ATLAS with C/C++, Octave, Python and R, the time taken was around 4 seconds. Using Jama with Java, the time taken was 50 seconds. Using Colt and Parallel Colt with Java, the time taken was 150 seconds! Using JBLAS with Java, the time taken was again aroun...
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recursion versus iteration

...rrect to say that everywhere recursion is used a for loop could be used? And if recursion is usually slower what is the technical reason for ever using it over for loop iteration? ...
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Does PNG contain EXIF data like JPG?

...llows, however, to embed metadata "chunks" inside the image. Some of the standardized chunks correspond to a few EXIF attributes (physical dimensions, timestamp). And it's also possible to store arbitrary textual data as key=>value pairs, or to define new chunk types. So, you could in theory stor...
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How do I check CPU and Memory Usage in Java?

I need to check CPU and memory usage for the server in java, anyone know how it could be done? 15 Answers ...
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How to make jQuery to not round value returned by .width()?

I've searched around and couldn't find this. I'm trying to get the width of a div, but if it has a decimal point it rounds the number. ...
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How can I create a “Please Wait, Loading…” animation using jQuery?

...relation to the viewport window with position:fixed. Width, height, top and left speak for themselves. Background we set to 80% white with our animation centered, and no-repeating */ .modal { display: none; position: fixed; z-index: 1000; top: 0; left: ...
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How does the String class override the + operator?

...x = "+x; The compiler converts "x = "+x; into a StringBuilder internally and uses .append(int) to "add" the integer to the string. 5.1.11. String Conversion Any type may be converted to type String by string conversion. A value x of primitive type T is first converted to a reference val...