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• How do i get ServletContext object in a simple class file?

  - by Nitesh Panchal

  Hello, I am creating a simple web application. I need to get reference to ServletContext object in that class. How can i get it?

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• How can we access the variables declared in another class without using extern ?

  - by srikanth rongali

  Can we access the integer type variables in classB which are declared in classA by not using extern? For objects I used ClassA *obj1 = [[ClassA alloc]init]; And accessed the objects of classA into class B. But, I am not able to do them with the int , float, NSTimeInterval. How can we do for them without using extern ? Thank You.

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• How to get list of traits that were mixed in the specified class?

  - by Jeriho

  And more specific example: abstract trait A trait B extends A trait C extends A How to check what traits that extend trait A (it can be from 0 to many) were mixed in specified class?

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• is there a free barcode 128 class for delphi (pdf)?

  - by Tom

  Is there a free alphanumeric barcode font or class that is compatible with Delphi "PowerPDF" component ? code must be code128.

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• What's the recommended way to declare fields of a class in JavaScript?

  - by Bytecode Ninja

  Is it better to declare fields of a class in this way: function MyClass() { this.aMethod = function() { // code } } Or this way: function MyClass() { } MyClass.prototype.aMethod = function() { // code } Any why? Thanks in advance.

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• ASP.net MVC How to change the Textbox Class upon validation failure?

  - by Harry

  I notice in the default MVC template project that the Account registration fields are highlighted via a class change. I can't seem to get the same behavour out of my own code (in the same project - same CSS etc) What might be stopping this from occuring? Update I believe this relates to one of my other questions Because I was having trouble with NullReferenceExceptions I have changed the Html.ValidationMessage fields to have different names than the target fields. So really, I need to resolve this question

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• How do I represent integer array in Visual Studio 2010's UML class diagrams?

  - by AndrejaKo

  How do I represent integer array in Visual Studio 2010's UML class diagrams? I'm new to UML, so I could be missing something obvious here. Should I use Is ordered and Is unique?

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• Is there any smart enough tool to build UML class-diagram based on not very complicated Java sources

  - by Roman

  I'm using IntelliJ IDEA and I tried its tool for building class diagram. Unfortunatelly, it draws classes from java package as well as necessary classes. That's why built diagram is very messed. Are there any more smart tool? Or, is there any way to 'turn off' drawing java classes in IDEA?

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• Implemeting 2 interfsaces in a class with same method.Which interface method is overridden?

  - by Jothi

  2 Interfaces with same method names and signatures. But implmented by a single class then how the compiler will identify the which method is for which interface.

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• How to write unit test before the class code?

  - by Scott Faisal

  I am trying to get into the habit of writing a unit test before the actual class. What are some pointers the stack overflow community can give me along with any useful resources. Thank You

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• Do I have to call release on an objective-c retain class variable when setting it to a new object?

  - by Andrew Arrow

  Say I have: @property (nonatomic,retain) NSString *foo; in some class. And I call: myclass.foo = [NSString stringWithString:@"string1"]; myclass.foo = [NSString stringWithString:@"string2"]; Should I have called [myclass.foo release] before setting it to "string2" to avoid a memory leak? Or the fact that nothing is pointing to the first "string1" object anymore is good enough? And in the dealloc method [foo release] will be called.

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• Can u tell me how to display a composition & Dependency relationship in class diagrams Using VS 2008

  - by Pradeep

  i am trying to display a compostion and dependency relation ship in class diagram using vs 2008 but there are no diagrame associated with the above mention relation ship please help me with this

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• Only static and const varibles can be assign to a class ??

  - by numerical25

  I am learning c++. Just curious, can only Static and constant varibles be assigned a value from within the class declaration ?? is this mainly why when you assign values to normal members, they have a special way doing it void myClass::Init():member1(0), member2(1) { }

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• If I add a public method to a C# class, do I need to recompile other assemblies using that type?

  - by Adal

  Question in the title. I'd like to avoid recompiling since the source code I'm modifying is third party and I'd like to use the original binaries where possible, and replace only the assembly which contains the class I modified. But I'm not sure if this is a safe thing to do. In C++ for example this is definitely a bad idea.

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• How do I add a css class to the TempData output?

  - by Pete

  The TempData output is plain text and putting a div around it will leave a formatted but empty div on the screen if there is no TempData. Is there a way to apply a class to it so that it only shows when the TempData item is set? Other than writing the div code into the TempData, which seems like a horrible idea.

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• How do I add a decorator to a class in python?

  - by Timmy

  how do I add a function with a decorator to a class? i tryed def add_decorator( cls ): @dec def update(self): pass cls.update = update @dec did not to with update im to use this with @orm.reconstructor in sqlalchemy.

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• When should I use a struct instead of a class?

  - by Esteban Araya

  MSDN says that you should use structs when you need lightweight objects. Are there any other scenarios when a struct is preferable over a class? Edit: Some people have forgotten that: 1. structs can have methods! 2. structs have no inheritance capabilites. Another Edit: I understand the technical differences, I just don't have a good feel for WHEN to use a struct.

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• In C#, can an attribute be applied to a static class, method or property?

  - by ray247

  Hi there, I was just wondering if an attribute can be applied to a static class, method or property in c#? Like, [MyAttribute] public static MyMethods(string str) ... Thanks Ray.

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• Why is the first four bytes of Java class file format is CAFEBABE?

  - by zengr

  Why is the first four bytes of Java class file format is CAFEBABE? Who named it? Your views/guesses? Source: IBM Java Programing Dynamics

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• Log4j: How filter out messages from a specific class?

  - by BestPractices

  I want to configure my log4j logging to not log messages that are 1) coming from a specific class and 2) of a specific severity i.e. WARN. Can someone provide sample configuration/code on how to do this?

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• What should my teacher talk about in my Advanced C++ class? [advice needed]

  - by Goose Bumper

  My teacher for Advanced C++ has opened the class up for students to suggest whatever topics we want. What are some good advanced C++ topics to know? We've already covered: template metaprogramming the STL (obviously) introduction to the boost libraries Please give reasons for suggestions as well.

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• PHP: how can a class reference its own name?

  - by Nathan Long

  In PHP, how can a class reference its own name? For example, what would the method look like to do this? Dog::sayOwnClassName(); //echos "Dog";

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• iterate only through existing objects properties, not them from parent class?

  - by ajsie

  i have a class that extends another. when i iterate the current object i get all properties, even those from the superclass. i only want to iterate through the current object. how could i do that? foreach($this as $key => $value) { echo $key . ': ' . $value; }

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• How does one access this hash from an ActiveRecord class in the Rails console?

  - by randombits

  I have a simple hash I created to make it easier to do dictionary type lookups. For instance: class Numbers < ActiveRecord::Base MY_TYPES { one: => 1, two: => 2 } end Is it not possible in the rails console to access this hash via Numbers.MY_TYPES[:one]?

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• How can the AssemblyName class be used for existing Assemblies?

  - by IbrarMumtaz

  This is another exam related question. I want to know how can I use the AssemblyName class to represent an existing assembly that already exists on disk??? I am talking about from the perspective of using the AppDomain's instance method .Load(), that takes an AssemblyName object as a parameter. I know what MSDN has to say about what the .Load() method was designed for but that aside, I still want to know how to use it !!!

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