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difference and when to use getApplication(), getApplicationContext(), getBaseContext() and someClass

...text( ), getBaseContext() , getContext() and someClass.this and especially when to use the these methods in the following code lines: ...
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Why is reading lines from stdin much slower in C++ than Python?

...tl;dr: Because of different default settings in C++ requiring more system calls. By default, cin is synchronized with stdio, which causes it to avoid any input buffering. If you add this to the top of your main, you should see much better performance: std::ios_base::sync_with_stdio(false); Normall...
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Download data url file

... just drag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in. ...
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What database does Google use?

...le has successfully provided a flexible, high-performance solution for all of these Google products. Some features fast and extremely large-scale DBMS a sparse, distributed multi-dimensional sorted map, sharing characteristics of both row-oriented and column-oriented databases. designed to...
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What exactly does @synthesize do?

...then will result in having two ivars, namely someInt plus an autogenerated _someInt variable. Thus self.someInt and someInt will not address the same variables any more. If you don't expect such behavior as I did this might get you some headache to find out. ...
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How to check the version before installing a package using apt-get?

I'm thinking to install hylafax+ version 5.5.4 which was release last month on my Debian PC. 10 Answers ...
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Parallel.ForEach vs Task.Run and Task.WhenAll

What are the differences between using Parallel.ForEach or Task.Run() to start a set of tasks asynchronously? 4 Answers ...
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ViewBag, ViewData and TempData

... 1)TempData Allows you to store data that will survive for a redirect. Internally it uses the Session as backing store, after the redirect is made the data is automatically evicted. The pattern is the following: public ActionResult Foo(...
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Number of days between two NSDates [duplicate]

... current time zone, perfect for an app that shows information about places all around the world. share | improve this answer | follow | ...
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Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.10:test

... Locate the dependencies you're missing with mvn dependency:tree, then install them manually, and build your project with the -o (offline) option. share | improve this answer | ...