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What's “tools:context” in Android layout files?

... That attribute is basically the persistence for the "Associated Activity" selection above the layout. At runtime, a layout is always associated with an activity. It can of course be associated with more than one, but at least one. In the tool, we ...
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Modify request parameter with servlet filter

...t that. One solution is to use the HttpServletRequestWrapper class, which allows you to wrap one request with another. You can subclass that, and override the getParameter method to return your sanitized value. You can then pass that wrapped request to chain.doFilter instead of the original request...
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How to write an async method with out parameter?

... @orad I especially like this: private async Task<(bool success, Job job, string message)> TryGetJobAsync(...) – J. Andrew Laughlin Oct 26 '18 at 15:26 ...
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Twitter Bootstrap 3 Sticky Footer

...olor: #f5f5f5; } and the essential HTML: <body> <!-- Wrap all page content here --> <div id="wrap"> <!-- Begin page content --> <div class="container"> </div> </div> <div id="footer"> <div class="contai...
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How to retrieve an element from a set without removing it?

...r(s)) only exceeds list(s)[0] by three characters and is otherwise dramatically superior in both time and space complexity. So, while the claim of "least code" is trivially true, it's also trivially true that this is the worst possible approach. Even manually removing and then re-adding the removed ...
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What is the motivation for bringing Symbols to ES6?

... Most languages (all mainstream ones afaik) provide some mechanism, usually reflection, to get access to private anyway. – Esailija May 14 '14 at 10:58 ...
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jQuery ui dialog change title after load-callback

...m an UI Dialog after i have submitted a form in this UI Dialog. So in the callback-function after load i should suggest, but i've tried and googled without result. ...
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In Python, how do I create a string of n characters in one line of code?

...ly, of course;-). Other ways to "make a string of 10 characters": 'x'*10 (all the ten characters will be lowercase xs;-), ''.join(chr(ord('a')+i) for i in xrange(10)) (the first ten lowercase letters again), etc, etc;-). sh...
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How to get std::vector pointer to the raw data?

...he iterator returned by begin() (as the compiler warns, this is not technically allowed because something.begin() is an rvalue expression, so its address cannot be taken). Assuming the container has at least one element in it, you need to get the address of the initial element of the container, whi...
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RegEx to make sure that the string contains at least one lower case char, upper case char, digit and

...'t know how to rephrase it in order to make it easier to understand. Especially in these small comment-boxes. I recommend you read this: regular-expressions.info/lookaround.html and if you still have question, simply post a question of your own. Good luck! – Bart Kiers ...