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• c# Does sealing a class seal all overriden members?

  - by e28Makaveli

  If I seal a class are all overriden members implicitly sealed or do I have to seal each overriden member explicitly? public sealed ClassA : ClassB { // Is this implicitly sealed or do I have to explicitly seal public override void Method1() {} } TIA. Klaus

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• [Iphone-Dev] Assigning values : difference between properties and class variables ?

  - by gotye

  Hey guys, I noticed that I rarely use properties, due to the fact that I rarely need to access my object's variables outside my class ;) So I usually do : NSMutableArray *myArray; // not a property ! My question is : even if i don't declare myArray as a property, does iphone make a retain anyway if I do myArray = arrayPassedToMe; I think so but I just wanted to confirm ;) Any thoughts welcome ! Gotye

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• Class diagram: how to write down classes that belong to a library?

  - by Michiel Borkent

  I am reverse engineering some Java code into a class diagram. Now I'm wondering how to model classes that are from a library that I didn't design. If I'm writing them down as classes, I should maybe also know what interfaces they implement, etc, and put that in the diagram. How far do I go with this? Is it better to write them down as attributes of my own classes?

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• How to create a dynamic array of an Abstract class?

  - by outsyncof

  Lets say I have an abstract class Cat that has a few concrete subclasses Wildcat, Housecat, etc. I want my array to be able to store pointers to a type of cat without knowing which kind it really is. When I try to dynamically allocate an array of Cat, it doesn't seem to be working. Please help? Cat* catArray = new Cat[200];

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• Defining a class with specific style dynamically in jQuery

  - by Acorn

  Is it possible to define a class with specific style attributes dynamically with jQuery, rather than setting the style of all elements with that class? I could set the attributes of the class at the end of the script once all the elements have been created, but is that the best way to go about it? If I define the style of the class with $('.class').css('property','value'); at the beginning of the script, nothing would happen because the elements with class .class haven't been created yet, right?

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• Do UML Class Diagram contains many to many relastionships?

  - by sam

  Hi Guys, Do UML Class Diagram contains many to many relastionships? is no, how do split it? thanks

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• C++ instantiating a class within a method, then altering member variables from a different method?

  - by Dominic Bou-Samra

  Say I have a method, and within that method it instantiates a Person class: void methodA() { Person personObject; } How would I access that object's methods from within another method? I.e. something like: void methodB() { personObject.someMethod(); } I realise it's a painfully nooby question :P

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• Why is it bad practice to derive a class from stl containers such as std::list?

  - by WilliamKF

  I've seen it declared that it is bad practice to derive a class from stl containers such as std::list. Why is this the case? What issues does violating this cause?

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• Is it good to have a member template function inside a non-template class in c++?

  - by tsubasa

  I wonder if it is a good practice to have a member template function inside a non-template class in c++? Why?

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• WPF: How to create a new class of user control in runtime?

  - by Entrase

  Hello! I need to define a user control in runtime and then instantiate it wherever I want. So it should not be just a "new UserControl()" (that will be an instance of a UserControl class) but the one I can use as a template. Should I use reflection to generate new type or is there a better way? Thanks!

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• What is the importance of association multiplicity in class diagrams?

  - by Ristovak

  What is the importance of association multiplicity in class diagrams? Why and when should we indicate them? Thanks.

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• [Castle Dynamic Proxy] What really interceptors do with my c# class?

  - by Pandiya Chendur

  I was asked to implement castle dynamic proxy in my asp.net web application and i was going through couple of articles which i got from Castle Project and Code Project about castle dynamic proxy in asp.net web application.... Both articles delt with creating interceptors but i can't get the idea why interceptors are used with classes.... Why should i intercept my class which is behaving properly?

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• How can I use a class before defining it?

  - by TheMachineCharmer

  class Node { string name; Node previous; }; Error: Node::previous uses "Node" which is being defined. How can I get this to work in C++? It works in C#. EDIT: Why Node* previous works?

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• How can I add a class to my flash cs4?

  - by WarrenFaith

  I am about to create a simple demo in flash where I have 3 layers, 3 keyframes. Currently I am just use some simple gotoAndStop() to move to the next keyframe. But now I need a custom event to do that but I can't create a class inside the action of a keyframe so I am not able to create a custom event. I just have AS3 developing experience in flex so far. Thanks in advance.

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• Is there a way to tell if a class was compiled for java6?

  - by feniix

  How can I do to tell if a java class was compiled for use on a java 6 vm? Is there an easy way?

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• How to call a prototyped function from within the prototyped "class"?

  - by Jorge

  function FakeClass(){}; FakeClass.prototype.someMethod = function(){}; FakeClass.prototype.otherMethod = function(){ //need to call someMethod() here. } I need to call someMethod from otherMethod, but apparently it doesn't work. If i build it as a single function (not prototyped), i can call it, but calling a prototyped does not work. How can i do it as if i was treating the function just like a class method?

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• [Castle-DynamicProxy] What really interceptors do with my c# class?

  - by Pandiya Chendur

  I was asked to implement castle dynamic proxy in my asp.net web application and i was going through couple of articles which i got from Castle Project and Code Project about castle dynamic proxy in asp.net web application.... Both articles delt with creating interceptors but i can't get the idea why interceptors are used with classes.... Why should i intercept my class which is behaving properly?

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• Is there a 128 or 256 bit double class in .net?

  - by AKRamkumar

  I have an application that I want to be able to use large numbers and very precise numbers. For this, I needed a precision interpretation and IntX only works for integers. Is there a class in .net framework or even third party(preferably free) that would do this? Is there another way to do this?

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• What Could be the example scenarios to declare any class or any method as "final"?

  - by Parth

  What Could be the example scenarios to declare any class or any method as "final"? When do we need to do this? Please give me some example to understand the practical use of "final"... please guide me as I am a beginner in OOP

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• How should I lay-out my PHP login class?

  - by ThinkingInBits

  So, there is going to be one login form; however 1 of 3 types of members will be signing in member_type_a, member_type_b, member_type_c all of whom have some of the same properties, and some whom may have specific methods and/or properties to them. I want the class to be saved to a session variable for use with member area pages. Any suggestions on applicable design patterns?

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• Is there any point to an interface if only one class implements it?

  - by user343587

  Looking at the (mature) codebase at my new job, there is an interface, and only one class implements it (as far as I can tell). Can/should I get rid of the interface?

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• How should I name the controller in the following Language Class tutorial (CodeIgniter)?

  - by janoChen

  The following is a great tutorial about using the Language Class. But I think the author forgot about creating the controller file. I just started using CI today and I'm not sure how to name the controller file for the view "example.php". The tutorial: http://codeigniter.com/wiki/Internationalization_and_the_Template_Parser_Class/

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• To identify the classes for uml diagrams?

  - by user106535

  I want to implement a software engineering project based on "crime management system". The main modules are: visitors, users, administrator. The main events that are taking place are: registration, report complaint, report crime, report most wanted, view status of reported crime. So could you please help me to identify the classes that are to be used in this project and help me to draw the class diagram?

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• Getting DataBinder Item's max value

  - by iTayb

  I'm working at the aspx page, and the following code is inserted in a Repeater control: <%# ((System.Collections.Generic.List<double>)DataBinder.Eval(Container.DataItem, "BookPrices")).Max() %> Brings up the following error: 'System.Collections.Generic.List<double>' does not contain a definition for 'Max' List does have an method of Max(), so I'm possibly messing up my code somehow. What is my problem? BookPrices is a list<double> object, which I'd like to print it's maximum value. P.S. You guys are great! I didn't find answers for many of my questions on the web. You really are life savers. Thank you very much! :)

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• ruby xmpfilter on windows

  - by dreftymac

  Has anyone out there ever gotten xmpfilter to work on windows? xmpfilter "unterminated string meets end of file" is the error. The only Google hit is in Japanese: google://xmpfilter "unterminated string meets end of file" http://www.unkar.org/read/pc12.2ch.net/tech/1249687283 For background, the desired feature from xmpfilter is to get automatic "eval" annotations of Ruby sourcecode: Before: a = "bravo alpha charlie" # => b = a.split # => b.sort! # => After: a = "bravo alpha charlie" # => "bravo alpha charlie" b = a.split # => ["bravo", "alpha", "charlie"] b.sort! # => ["alpha", "bravo", "charlie"]

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