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Difference between getDefaultSharedPreferences and getSharedPreferences

...es a default preference-file name. This default is set per application, so all activities in the same app context can access it easily as in the following example: SharedPreferences spref = PreferenceManager.getDefaultSharedPreferences(this); if (spref.contains("email")) { String sEmailAdd...
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How can i query for null values in entity framework?

...g this bug! For backwards compatibility, it will be opt-in - you need manually enable a setting to make entry == value work. No word yet on what this setting is. Stay tuned! Edit 2: According to this post by the EF team, this issue has been fixed in EF6! Woohoo! We changed the default be...
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Why do most fields (class members) in Android tutorial start with `m`?

...art with a lower case letter. Public static final fields (constants) are ALL_CAPS_WITH_UNDERSCORES. Note that the linked style guide is for code to be contributed to the Android Open Source Project. It is not a style guide for the code of individual Android apps. ...
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How to install Java SDK on CentOS?

I have CentOS 5, but I don't know the steps to install Java SDK on Linux. 12 Answers ...
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Any reason not to use '+' to concatenate two strings?

... Tuple would be faster - the code was just an example :) Usually long multiple string inputs are dynamic. – Mikko Ohtamaa Apr 6 '12 at 12:52 ...
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PowerShell script to return versions of .NET Framework on a machine?

...t). It also outputs both Client and Full on 4.0 (if you have them both installed): Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' -recurse | Get-ItemProperty -name Version,Release -EA 0 | Where { $_.PSChildName -match '^(?!S)\p{L}'} | Select PSChildName, Version, Release Based o...
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What reference do I need to use Microsoft.Office.Interop.Excel in .NET?

... After i tried the Folder GAC, GAC_32 and GAC_64 i thought it will never be in the last folder GAC_MSIL. But it was. Thanks for your comment. Worked great for me! – Marty_in_a_Box Feb 8 '16 at 13:56 ...
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Read/Write 'Extended' file properties (C#)

...thread at kixtart.org that has more information for other properties. Basically, you need to call the GetDetailsOf() method on the folder shell object for shell32.dll. share | improve this answer ...
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Difference between method and function in Scala

..., no instance - with a method type. As mentioned above, a Method Value actually has a Function Type. A method type is a def declaration - everything about a def except its body. Value Declarations and Definitions and Variable Declarations and Definitions are val and var declarations, including both...
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Is the C# static constructor thread safe?

... { mutex.WaitOne(); return instance; } // Each call to Acquire() requires a call to Release() public static void Release() { mutex.ReleaseMutex(); } } share | ...