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When should I use a struct instead of a class?

..., false for Boolean types, and null for reference types. Note that in C# 6.0 structs can have a default constructor that can be used to initialize the struct’s fields to nondefault values. You do not need to inherit from a base class (other than ValueType, from which all structs inherit). You d...
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Objective-C: Where to remove observer for NSNotification?

...nCenter.defaultCenter().removeObserver(self) } } Objective-C In iOS 6.0 > version , its better to remove observer in viewWillDisappear as viewDidUnload method is deprecated. [[NSNotificationCenter defaultCenter] removeObserver:observerObjectHere]; There is many times its better to re...
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Implementing INotifyPropertyChanged - does a better way exist?

... value); } with which the compiler will add the "Name" automatically. C# 6.0 makes the implementation easier: protected void OnPropertyChanged([CallerMemberName] string propertyName = null) { PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName)); } ...and now with C#7: pr...
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Why would you ever implement finalize()?

... I'm not sure what you can make of this, but... itsadok@laptop ~/jdk1.6.0_02/src/ $ find . -name "*.java" | xargs grep "void finalize()" | wc -l 41 So I guess the Sun found some cases where (they think) it should be used. ...
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android get real path by Uri.getPath()

...ovement in @user3516549 answer and I have check it on Moto G3 with Android 6.0.1 I have this issue so I have tried answer of @user3516549 but in some cases it was not working properly. I have found that in Android 6.0(or above) when we start gallery image pick intent then a screen will open that sho...
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@Override is not allowed when implementing interface method

... Just faced same problem. My project language level already was 6.0 but @Override annotation still was highlighted. To fix that you can open *.iml file and set LANGUAGE_LEVEL="JDK_1_6" and reload project – Georgy Gobozov Feb 25 '14 at 17:11 ...
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How to import an existing X.509 certificate and private key in Java keystore to use in SSL?

...s) in server.xml looks like this # (See: https://tomcat.apache.org/tomcat-6.0-doc/ssl-howto.html): # # <Connector port="8443" protocol="org.apache.coyote.http11.Http11Protocol" # SSLEnabled="true" # maxThreads="150" scheme="https" secure="true" # cli...
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How do I declare an array of weak references in Swift?

...ass Reference Available in OS X v10.5 and later. Available in iOS 6.0 and later. share | improve this answer | follow | ...
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Using the rJava package on Win7 64 bit with R

... finding that DLL. It resides in a folder like C:\Program Files\Java\jdk1.6.0_25\jre\bin\server or C:\Program Files\Java\jre6\jre\bin\client Wherever yours is, add that directory to your windows PATH variable. (Windows -> "Path" -> "Edit environment variables to for your account" -> ...
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Unable to update the EntitySet - because it has a DefiningQuery and no element exis

...y. This is my solution. The following worked for me using Entity Framework 6.0 (the latest on NuGet as of this writing). Right-click on your .edmx file in the Solution Explorer. Choose "Open With..." and then select "XML (Text) Editor". We're going to be hand-editing the auto-generated code here. ...