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getActivity() returns null in Fragment function

... | edited May 23 '16 at 5:31 Milad Faridnia 7,4201111 gold badges6060 silver badges6767 bronze badges ...
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How is an overloaded method chosen when a parameter is the literal null value?

... 102 Is null a String variable pointing to nothing ? A null reference can be converted to an exp...
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What are the advantages of NumPy over regular Python lists?

...n lists -- a list of lists as you describe, in Python, would take at least 20 MB or so, while a NumPy 3D array with single-precision floats in the cells would fit in 4 MB. Access in reading and writing items is also faster with NumPy. Maybe you don't care that much for just a million cells, but you...
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jQuery document.ready vs self calling anonymous function

... | edited Oct 16 '12 at 13:26 Rafael Herscovici 14k1515 gold badges6060 silver badges8989 bronze badges ...
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Android Shared preferences for creating one time activity (example) [closed]

...ATE).edit(); editor.putString("name", "Elena"); editor.putInt("idName", 12); editor.apply(); Retrieve data from preference: SharedPreferences prefs = getSharedPreferences(MY_PREFS_NAME, MODE_PRIVATE); String name = prefs.getString("name", "No name defined");//"No name defined" is the default ...
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REST API Best practices: args in query string vs in request body

...What are the best practices and considerations of choosing between 1 and 2 above? Usually the content body is used for the data that is to be uploaded/downloaded to/from the server and the query parameters are used to specify the exact data requested. For example when you upload a file you speci...
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How to let PHP to create subdomain automatically for each user?

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Run batch file as a Windows service

... answered Nov 8 '12 at 17:21 Junior MayhéJunior Mayhé 14.8k2626 gold badges102102 silver badges154154 bronze badges ...
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How to allow download of .json file with ASP.NET

... | edited May 12 '17 at 14:52 answered Nov 16 '11 at 20:56 ...
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Is there any free OCR library for Android? [closed]

... | edited Jan 29 '17 at 9:38 BlueWizard 34233 silver badges1818 bronze badges answered Jul 9...