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Separate Back Stack for each tab in Android using Fragments

I'm trying to implement tabs for navigation in an Android app. Since TabActivity and ActivityGroup are deprecated I would like to implement it using Fragments instead. ...
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How can I build a small operating system on an old desktop computer? [closed]

... First things first. Read, read, read, read, read. You need to have a firm understanding of how the OS works before you can hope to implement your own. Grab one of Andrew Tanenbaum's books on operating systems. This is the one we used in my OS class in college: Modern Operating ...
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How to run a shell script in OS X by double-clicking?

...n permission on OS X, but when I double click on it, it opens in a text editor. How can I get it to run by double-clicking it? ...
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Handler vs AsyncTask

I'm confused as to when one would choose AsyncTask over a Handler. Say I have some code I want to run every n seconds which will update the UI. Why would I choose one over the other? ...
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Redirect all to index.php using htaccess

I'm writing a simple PHP-based MVC-ish framework. I want this framework to be able to be installed in any directory. 7 Answ...
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Is there a setting on Google Analytics to suppress use of cookies for users who have not yet given c

According to EU Article 5(3) of the E-Privacy Directive (a.k.a 'The Cookie Laws'), web sites that target EU users have to gain opt-in consent from users before they set a cookie. ...
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Move assignment operator and `if (this != &rhs)`

In the assignment operator of a class, you usually need to check if the object being assigned is the invoking object so you don't screw things up: ...
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What does the `forall` keyword in Haskell/GHC do?

I'm beginning to understand how the forall keyword is used in so-called "existential types" like this: 8 Answers ...
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Is it possible to cache POST methods in HTTP?

...sponding RFC 2616 in section 9.5 (POST) allows the caching of the response to a POST message, if you use the appropriate headers. Responses to this method are not cacheable, unless the response includes appropriate Cache-Control or Expires header fields. However, the 303 (See Other) respons...
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In the shell, what does “ 2>&1 ” mean?

In a Unix shell, if I want to combine stderr and stdout into the stdout stream for further manipulation, I can append the following on the end of my command: ...