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by: f00sion |
last post by:
I found a good tutorial of how to supply the objects without having
the implementation files on the client. This was working great until I
realized that I couldnt use any constructors with server activated
objects, so I switched to client activated objects only to run into
the next roadblock, doh! can't instantiate abstract classes... here is
a simple example of the structure, im sure there is a way to do it to
allow instantiation but I am...
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by: Vishal Gandhi |
last post by:
Hi ,
Please help me by advising an real life scenario where Abstract Classes
should be used over Interfaces or vice versa . Whats the basic difference
between Abstract Class and interface other then instantiation ?
Many Thanks
Vishal Gandhi
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by: Christian Christmann |
last post by:
Hi,
I've a class Handler which contains a STL list
std::list<Abstract*> mAbstract;
which is storing elements of the abstract class Abstract.
Further this class has a getElement function to
return a specific element of the list.
The abstract class Abstract has some virtual pure function
which are used with all concrete classes derived from it.
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by: Daedalus.OS |
last post by:
Ok first I'm pretty new to OOP, so my question may sound stupid to some of
you. If the only answer you can provide is "get a book about OOP" then don't
loose your time and mine cause it's already ordered. I'm just too curious
about this one to wait for the book.
I would like to know is if it's good php programming practice to use
abstract classes instead of singleton classes. For exemple a login class.
I've made one as an abstract class...
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by: WithPit |
last post by:
I am trying to create an managed wrapper but have some problems with it by
using abstract classes.
In my unmanaged library code i had the following three classes with the
following hierarchy
Referenced (class)
Object (abstract class, inheriting from referenced)
Node (class, inheriting from object)
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by: tony |
last post by:
Hello!!
I know what an abstract class is which mean that the one of the derived
class must define
the abstract methods in the abstract class. So all the abstract methods in
the abstarct class must be defined by some derived class.
What does it mean when an abstract class is virtual?
//Tony
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by: N.RATNAKAR |
last post by:
hai,
what is abstract class and abstract method
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by: Eric |
last post by:
I was wondering what people thought about the information found at:
http://g.oswego.edu/dl/mood/C++AsIDL.html
Specifically, I am interested in the following recommendation:
----
Since interface classes cannot be directly instantiated, yet serve as
virtual base classes for implementations, the constructors should take
no arguments and should be listed as protected. Also, for similar
|
by: Miguel Guedes |
last post by:
Hello,
I recently read an interview with Bjarne Stroustrup in which he says
that pure abstract classes should *not* contain any data. However, I
have found that at times situations are when it would be useful to have
/some/ data defined in such an abstract class for reasons of forming a
common block of data existing in or used by all descendant classes (see
example below.) In such a case where a common block of data *always*
exists,...
|
by: =?Utf-8?B?UmljaA==?= |
last post by:
Greetings,
I am actually a VB.Net guy, but I have worked somewhat with C++ and C#. I
just want to ask about the relationship between Abstract Classes and
Interfaces.
My first question is if C# even has Iinterfaces. I took some Java
programming classes and Interfaces are a main staple of Java. And in VB.Net
I use interfaces for setting up definitions of classes. I am guessing that
Abstract classes in C# do the same thing as...
|
by: marktang |
last post by:
ONU (Optical Network Unit) is one of the key components for providing high-speed Internet services. Its primary function is to act as an endpoint device located at the user's premises. However, people are often confused as to whether an ONU can Work As a Router. In this blog post, we’ll explore What is ONU, What Is Router, ONU & Router’s main usage, and What is the difference between ONU and Router. Let’s take a closer look !
Part I. Meaning of...
|
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by: jinu1996 |
last post by:
In today's digital age, having a compelling online presence is paramount for businesses aiming to thrive in a competitive landscape. At the heart of this digital strategy lies an intricately woven tapestry of website design and digital marketing. It's not merely about having a website; it's about crafting an immersive digital experience that captivates audiences and drives business growth.
The Art of Business Website Design
Your website is...
|
by: tracyyun |
last post by:
Dear forum friends,
With the development of smart home technology, a variety of wireless communication protocols have appeared on the market, such as Zigbee, Z-Wave, Wi-Fi, Bluetooth, etc. Each protocol has its own unique characteristics and advantages, but as a user who is planning to build a smart home system, I am a bit confused by the choice of these technologies. I'm particularly interested in Zigbee because I've heard it does some...
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by: agi2029 |
last post by:
Let's talk about the concept of autonomous AI software engineers and no-code agents. These AIs are designed to manage the entire lifecycle of a software development project—planning, coding, testing, and deployment—without human intervention. Imagine an AI that can take a project description, break it down, write the code, debug it, and then launch it, all on its own....
Now, this would greatly impact the work of software developers. The idea...
|
by: isladogs |
last post by:
The next Access Europe User Group meeting will be on Wednesday 1 May 2024 starting at 18:00 UK time (6PM UTC+1) and finishing by 19:30 (7.30PM).
In this session, we are pleased to welcome a new presenter, Adolph Dupré who will be discussing some powerful techniques for using class modules.
He will explain when you may want to use classes instead of User Defined Types (UDT). For example, to manage the data in unbound forms.
Adolph will...
|
by: conductexam |
last post by:
I have .net C# application in which I am extracting data from word file and save it in database particularly. To store word all data as it is I am converting the whole word file firstly in HTML and then checking html paragraph one by one.
At the time of converting from word file to html my equations which are in the word document file was convert into image.
Globals.ThisAddIn.Application.ActiveDocument.Select();...
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by: TSSRALBI |
last post by:
Hello
I'm a network technician in training and I need your help.
I am currently learning how to create and manage the different types of VPNs and I have a question about LAN-to-LAN VPNs.
The last exercise I practiced was to create a LAN-to-LAN VPN between two Pfsense firewalls, by using IPSEC protocols.
I succeeded, with both firewalls in the same network. But I'm wondering if it's possible to do the same thing, with 2 Pfsense firewalls...
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by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
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by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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