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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 does the main() method work in C?

...es. Programmers noticed that they can pass extra arguments to a function, and nothing bad happens with their given compiler. This is the case if the calling conventions are such that: The calling function cleans up the arguments. The leftmost arguments are closer to the top of the stack, or to t...
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How to set the prototype of a JavaScript object that has already been instantiated?

...e I have an object foo in my JavaScript code. foo is a complex object and it is generated somewhere else. How can I change the prototype of the foo object? ...
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MySQL maximum memory usage

... MySQL's maximum memory usage very much depends on hardware, your settings and the database itself. Hardware The hardware is the obvious part. The more RAM the merrier, faster disks ftw. Don't believe those monthly or weekly news letters though. MySQL doesn't scale linear - not even on Oracle hard...
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Why do we need private subnet in VPC?

...ed, or the Managed NAT Gateway service can be provisioned, instead. An expanded version of this answer integrating more information about NAT Gateway and how it compares to a NAT instance will be forthcoming, as these are both relevant to the private/public subnet paradigm in VPC. Note that the In...
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Extending from two classes

... You can only Extend a single class. And implement Interfaces from many sources. Extending multiple classes is not available. The only solution I can think of is not inheriting either class but instead having an internal variable of each class and doing more o...
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How does the compilation/linking process work?

How does the compilation and linking process work? 5 Answers 5 ...
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What is the difference between '@' and '=' in directive scope in AngularJS?

I've read the AngularJS documentation on the topic carefully, and then fiddled around with a directive. Here's the fiddle . ...
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When should one use final for method parameters and local variables?

... references ( for example ) that suggest using final as much as possible and I'm wondering how important that is. This is mainly in the the context of method parameters and local variables, not final methods or classes. For constants, it makes obvious sense. ...
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Difference between “!==” and “==!” [closed]

... ==! in any language so I wondered how the hell this code could even work and did some testing: 5 Answers ...