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Why do x86-64 instructions on 32-bit registers zero the upper part of the full 64-bit register?

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Why does my application spend 24% of its life doing a null check?

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Which HTML5 tag should I use to mark up an author’s name?

..."author" can be used on <link> <a>, and <area> elements. Google also recommends its usage. Combining use of <address> and rel="author" seems optimal. HTML5 best affords wrapping <article> headlines and bylines info in a <header> like so: <article> <h...
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Should I use Java date and time classes or go with a 3rd party library like Joda Time?

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Object reference not set to an instance of an object.Why doesn't .NET show which object is `null`?

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Using curl to upload POST data with files

... HTTPie, it'a CLI, cURL-like tool for humans. Installation instructions: https://github.com/jakubroztocil/httpie#installation Then, run: http -f POST http://localhost:4040/api/users username=johnsnow photo@images/avatar.jpg HTTP/1.1 200 OK Access-Control-Expose-Headers: X-Frontend Cache-control:...
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When to call activity context OR application context?

... crashes occur on a wide range of Android versions from API 15 up to 22. https://possiblemobile.com/2013/06/context/#comment-2443283153 Because it's not guaranteed that all operations described as supported by Application Context in the table below will work on all Android devices! ...
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How to call a SOAP web service on Android [closed]

...le to compile and use kSOAP2 in their own projects, but I haven't had to. Google has shown, to date, little interest in adding a SOAP library to Android. My suspicion for this is that they'd rather support the current trends in Web Services toward REST-based services, and using JSON as a data encap...
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Twitter API returns error 215, Bad Authentication Data

...f oauth etc. Please note to obtain following keys you need to sign up with https://dev.twitter.com and create application. <?php $token = 'YOUR_TOKEN'; $token_secret = 'YOUR_TOKEN_SECRET'; $consumer_key = 'CONSUMER_KEY'; $consumer_secret = 'CONSUMER_SECRET'; $host = 'api.twitter.com'; $method =...
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What is the difference between Polymer elements and AngularJS directives?

...rJS : "angularjs will use polymer for its widgets. It's win-win" source : https://twitter.com/angularjs/status/335417160438542337 share | improve this answer | follow ...