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Constructor of an abstract class in C#

...stract class. That way you can have classes that inherit from that class call the base constructor. public abstract class A{ private string data; protected A(string myString){ data = myString; } } public class B : A { B(string myString) : base(myString){} } ...
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iphone ios running in separate thread

... everything you need with performSelector:withObject:afterDelay: and avoid all of the issues that come with multi-threaded programming. – Jacques Oct 6 '10 at 4:15 ...
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Good reasons to prohibit inheritance in Java?

...erence here is Item 19 of Joshua Bloch's excellent book "Effective Java", called "Design and document for inheritance or else prohibit it". (It's item 17 in the second edition and item 15 in the first edition.) You should really read it, but I'll summarize. The interaction of inherited classes wit...
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Securely storing environment variables in GAE with app.yaml

...ect Settings. If you ran the code above, your keys will show up. They will all have the value NOT SET. Click each one and set its value. Hope this helps! share | improve this answer ...
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`static` keyword inside function?

...e value of the given variable ($has_run in your example) between multiple calls. You could use this for different purposes, for example: function doStuff() { static $cache = null; if ($cache === null) { $cache = '%heavy database stuff or something%'; } // code using $cache } In th...
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Bash script to set up a temporary SSH tunnel

...le [ ! -e $ctrl_socket ]; do sleep 0.1; done – Adam Wallner Feb 11 '18 at 22:19 when I do this I'm getting open failed...
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What are the differences between Generics in C# and Java… and Templates in C++? [closed]

... my voice to the noise and take a stab at making things clear: C# Generics allow you to declare something like this. List<Person> foo = new List<Person>(); and then the compiler will prevent you from putting things that aren't Person into the list. Behind the scenes the C# compiler is j...
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AngularJS- Login and Authentication in each route and controller

...e run method you watch when the route changes and you check if the user is allowed to access the requested page, in your main controller you watch if the state of the user change. app.run(['$rootScope', '$location', 'Auth', function ($rootScope, $location, Auth) { $rootScope.$on('$routeChangeSt...
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Spring 3.0 - Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springfra

...y configuration xml can be a different one from applicationContext.xml, usually applicationContext-security.xml inside WEB-INF folder. The changes to be applied are for web.xml <context-param> <param-name>contextConfigLocation</param-name> <param-value> /WEB-...
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How can I make a weak protocol reference in 'pure' Swift (without @objc)

... My problem with this solutions is that calling the delegate causes a crash - EXC_BAD_ACCESS (as noted by others elsewhere). This seems to be bug. The only solution I have found is to use @objc and eliminate all Swift data types from the protocol. ...