class

PHP Access property of a class from within a class instantiated in the original class.

I'm not certain how to explain this with the correct terms so maybe an example is the best method... $master = new MasterClass(); $master->doStuff(); class MasterClass { var $a; var $b; var $c; var $eventProccer; function MasterClass() { $this->a = 1; $this->eventProccer = new EventProcess();...

What kind of bad things would happen if you write the whole class in a single file in C++?

In C# or Java, classes are declared and defined at the same time. In C++, the norm is to do that separately. What if we write the whole class in one , say .cpp, file and include that in files that references to it, what kinds of bad thing technically would happen besides a lengthened compilation process? ...

C# new class with only single property : derive from base or encapsulate into new ?

I've tried to be descriptive :) It's rather programming-style problem than coding problem in itself. Let's suppose we have : A: public class MyDict { public Dictionary<int,string> dict; // do custom-serialization of "dict" public void SaveToFile(...); // customized deserialization of "dict" public void LoadFr...

How to turn Java class into one of its subclasses (SocketAddress and InetSocketAddress)

I am trying to get the IP of a socket connection in string form. I am using a framework, which returns the SocketAddress of the received message. How can i transform it to InetSocketAddress or InetAddress? ...

Do I correctly understand what a class is?

I've had trouble finding a clear, concise laymans definition of a class. Usually, they give general ideas without specifically spelling it out, and I'm wondering if I'm understanding this correctly. As I understand it, a class is the set of code that controls an object. For example, in an app that has a button for 'Yes' and a button for ...

How to convert a child instance to parent class and the reverse in PHP?

$child_instance = (childClass)$parent_instance; $parent_instance = (parentClass)$child_instance; Or is it possible? ...

How do i use findAll method with a class in Doctrine?

Hi, I am a little bit confused with Doctrine class. I created a class and its base class in Doctrine. The class's name is User. so..I created an object of class User. $oUser = new User(); when I try to use findAll method, it does not work. I found the following code on the doctrine documentation. Doctrine_Core::getTable('User')->fin...

c++ defining a static member of a template class with type inner class pointer

I have a template class like here (in a header) with a inner class and a static member of type pointer to inner class template <class t> class outer { class inner { int a; }; static inner *m; }; template <class t> outer <t>::inner *outer <t>::m; when i want to define that static member i says "error: expected con...

Qt: default value of variable in class

When creating my own class in Qt I would like my variables in the class to have a standard/default value if I haven't set them to anything. It would be perfect if this was possible to set in the h-file so I don't have to do it in each instance method of my class. You can see what I want to do in the code below. In the example myBool woul...

Why are my resources suddenly unresolved in my Android project?

Eclipse is complaining about my Android project saying all my references to resources are unresolved, even though R.java does exist. For example: signin_btn=(Button)findViewById(R.id.signin_btn); signin_btn.setOnClickListener(this); I definately have signin_btn defined in my resources. Dont know why Eclipse is not seeing my R class any...

How can I reliably set the class attr w/JavaScript on IE, FF, Chrome, etc.?

Hi, I am using the below js code in order to change the class when a link is clicked. document.getElementById("gifts").setAttribute("class", "gkvSprite selected"); This is not working in IE but it does in FF and Chrome Then I changed the code to : document.getElementById("gifts").setAttribute("className", "gkvSprite selected"); Th...

python __init__ how to return a value

I have a class with an __init__ function. How can I return an integer value from this function when an object is created? I wrote a program,where init does command line parsing and I need to have some value set. IS it OK set it in global variable and use it in other member functions ? If so how to do that? So far , i declared a variabl...

how to write this conditions in php

hey guys , im writing a class and im wondering how i can write a condition statement in this way : $this->referer= (!empty($_SERVER['HTTP_REFERER'])) ? htmlspecialchars((string) $_SERVER['HTTP_REFERER']) : ''; i need to find my user_id and this is the usual condtion : if(is_user($user)){ $cookie=cookiedecode($user); ...

Static classes in PHP via abstract keyword?

According to the PHP manual, a class like this: abstract class Example {} cannot be instantiated. If I need a class without instance, e.g. for a registry pattern: class Registry {} // and later: echo Registry::$someValue; would it be considered good style to simply declare the class as abstract? If not, what are the advantages of h...

Why isn't the "this." command needed in this constructor? (java)

I'm reading a book about java. It just got to explaining how you create a class called "deck" which contains an array of cards as its instance variable(s). Here is the code snippit: class Deck { Card[] cards; public Deck (int n) { cards = new Card[n]; } } why isn't the this. command used? for example why i...

Error code while trying to use private variables in a function

I get an error that says Parse error: syntax error, unexpected T_PRIVATE in E:\PortableApps\xampp\htdocs\SN\AC\ACclass.php on line 6 while trying to run my script. I'm new to classes in PHP and was wondering if someone could point out my error. Here's the code for that part. <?php class ac { public function authenticati...

WCF error service error message with shared classes

Source code: http://code.google.com/p/sevenupdate/source/browse/#hg/Source/SevenUpdate.Base SevenUpdate.Base.Sui cannot be used since it does not match imported DataContract. Need to exclude this type from referenced types. Now I tried unchecking reuse reference types and I was able to get my project to compile. but when sending a coll...

I'm making a simulated tv

I need to make a tv that shows the user the channel and the volume, and shows whether or not the television is on. I have the majority of the code made, but for some reason the channels won't switch. I'm fairly unfamiliar with how properties work, and I think that's what my problem here is. Help please. class Television(object): de...

Python overriding class (not instance) special methods

How do I override a class special method? I want to be able to call the __str__() method of the class without creating an instance. Example: class Foo: def __str__(self): return 'Bar' class StaticFoo: @staticmethod def __str__(): return 'StaticBar' class ClassFoo: @classmethod def __str__(cls): ...

External resources in Flash

Hey all. I'm working on an application that was originally intended for HTML, but I've recently concluded that the best thing to do for my purposes is to do it in Flash instead. One of the big things I need is to be able to bring in movieclips from external files and add them to my main movie at runtime (dynamic number of elements, skin...