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When to use DataContract and DataMember attributes?

... Since a lot of programmers were overwhelmed with the [DataContract] and [DataMember] attributes, with .NET 3.5 SP1, Microsoft made the data contract serializer handle all classes - even without any of those attributes - much like the old XML seria...
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How to run Conda?

I installed Anaconda and can run Python, so I assume that I installed it correctly. Following this introductory documentation , I am trying to install Python v3.3, so I am copying and pasting the following line into my console: ...
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How to delete from a text file, all lines that contain a specific string?

...– does not work with BSD sed: sed -i '/pattern to match/d' ./infile Same, but for BSD sed (Mac OS X and FreeBSD) – does not work with GNU sed: sed -i '' '/pattern to match/d' ./infile To directly modify the file (and create a backup) – works with BSD and GNU sed: sed -i.bak '/pattern to...
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Android Studio - How to Change Android SDK Path

...zed like ADT Eclipse at all. And this accepted answer leads to the exact same place as DheeB's answer (which brings you to a place that says: Android SDK location: This location will be used for new projects, and for existing projects that do not have a local.properties file with a sdk.dir property....
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Cross cutting concern example

What is a good example of a cross-cutting concern ? The medical record example on the wikipedia page seems incomplete to me. ...
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Zooming MKMapView to fit annotation pins?

...iew and have added a number of annotation pins to the map about a 5-10 kilometre area. When I run the application my map starts zoomed out to show the whole world, what is the best way to zoom the map so the pins fit the view? ...
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How to delete a specific line in a file?

Let's say I have a text file full of nicknames. How can I delete a specific nickname from this file, using Python? 17 Answe...
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How to extract the file name from URI returned from Intent.ACTION_GET_CONTENT?

...le code for this: https://developer.android.com/guide/topics/providers/document-provider.html A condensed version to just extract the file name (assuming "this" is an Activity): public String getFileName(Uri uri) { String result = null; if (uri.getScheme().equals("content")) { Cursor curso...
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How to export collection to CSV in MongoDB?

...he reason for the error. Try this: mongoexport --host localhost --db dbname --collection name --csv --out text.csv --fields firstName,middleName,lastName UPDATE: This commit: https://github.com/mongodb/mongo-tools/commit/586c00ef09c32c77907bd20d722049ed23065398 fixes the docs for 3.0.0-rc10 and...
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Comparison of Android networking libraries: OkHTTP, Retrofit, and Volley [closed]

... I'm hoping someone can provide some concrete examples of best use cases for each. Use Retrofit if you are communicating with a Web service. Use the peer library Picasso if you are downloading images. Use OkHTTP if you need to do HTTP op...