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

... i see . according to the screenshot here : tools.android.com/_/rsrc/1337185954574/recent/newconfigchooser/… , it means that doesn't have to be a class that extends Context , right? if so, i think it does more that what you are saying , though i'm not sure what . ...
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How to use PrimeFaces p:fileUpload? Listener method is never invoked or UploadedFile is null / throw

... 10 Answers 10 Active ...
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How do popular apps authenticate user requests from their mobile app to their server?

...ope. DO YOU WANT TO GO THE EXTRA MILE? OWASP Mobile Security Project - Top 10 risks The OWASP Mobile Security Project is a centralized resource intended to give developers and security teams the resources they need to build and maintain secure mobile applications. Through the project, our goal is t...
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What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?

...per has exceeded the daily limit on requests. And indeed they do: PAYMENT_REQUIRED (402) A daily budget limit set by the developer has been reached. The requested operation requires more resources than the quota allows. Payment is required to complete the operation. The requested operation requir...
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Difference between CouchDB and Couchbase

... answered Mar 3 '13 at 10:15 rsprsp 84.9k1717 gold badges162162 silver badges146146 bronze badges ...
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What should go into an .h file?

...s imagine we have a templated MyObject. We could have: // - - - - MyObject_forward.hpp - - - - // This header is included by the code which need to know MyObject // does exist, but nothing more. template<typename T> class MyObject ; . // - - - - MyObject_declaration.hpp - - - - // This h...
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What are the differences between Abstract Factory and Factory design patterns?

... 510 The Difference Between The Two The main difference between a "factory method" and an "abstract ...
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What is “callback hell” and how and why does RX solve it?

...use a for loop. // we would like to write the following for(var i=0; i<10; i++){ doSomething(i); } blah(); Instead, we might need to end up writing: function loop(i, onDone){ if(i >= 10){ onDone() }else{ doSomething(i, function(){ loop(i+1, onDone); ...
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How do I create a custom iOS view class and instantiate multiple copies of it (in IB)?

... Swift example Updated for Xcode 10 and Swift 4 Here is a basic walk through. I originally learned a lot of this from watching this Youtube video series. Later I updated my answer based on this article. Add custom view files The following two files will f...
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Is it better to reuse a StringBuilder in a loop?

...-time ); } } Results: 25265 17969 Note that this is with JRE 1.6.0_07. Based on Jon Skeet's ideas in the edit, here's version 2. Same results though. public class ScratchPad { static String a; public static void main( String[] args ) throws Exception { long time = Syst...