| |
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
|
by: Peter N Roth |
last post by:
If i build a class in C#, i can declare a method abstract.
If someone derives from this class, the abstract method
must be overriden for the computation to succeed.
ISTM that an Interface provides a similar service, i.e.,
all methods must be implemented in order for the computation
to succeed.
Why use one or the other? Or maybe both?
Is it because interfaces can be implemented in _any_
|
by: Michael Grimsley |
last post by:
I have been looking at interfaces in C# and cannot seem to understand them. I am told that interfaces resembles a class with no code and that methods declared in an interface are not allowed to contain method bodies. My question is what purpose does creating an interface serve that has methods with not bodies? If a method does not have a body then what is the methods purpose, because if you call the method it will not do anything or you have to...
|
by: Picho |
last post by:
Hi all,
I popped up this question a while ago, and I thought it was worth checking
again now... (maybe something has changed or something will change).
I read this book about component oriented design (owreilly - Juval Lowy),
and it was actually very nice.
The book goes on about how we should use Interfaces exposure instead of
classes (this is my terminology and english is not my language so I hope you
understand what I'm on about...).
|
by: Frank Rizzo |
last post by:
We are having one of those religious debates at work: Interfaces vs
Classes. My take is that Classes give you more flexibility. You can
enforce a contract on the descendant classes by marking methods abstract
(which is all that an interface does). In addition, the classes allow
you to be flexible by adding functionality that child classes inherit.
Or by providing optional functionality via virtual methods.
Now, I understand that...
|
| |
by: Michael McCarthy |
last post by:
I want to develop plugin support for a system.montitor module I am
working on. A lot of the modules will do mostly interop stuff for an
older system, but I want to use it myself as well to monitor event logs
and other things as I think of them...
I've seen two ways of doing this, the abstract class factory, or the
interface... the module logic is fairly simple, watch something -> get
the result -> notify / fix / and or log it...
I've...
|
by: Sean Kirkpatrick |
last post by:
To my eye, there doesn't seem to be a whole lot of difference between
the two of them from a functional point of view. Can someone give me a
good explanation of why one vs the other?
Sean
|
by: Steve |
last post by:
I am designing a new class hierarchy and I've already run into a bit of a
bump in the road. I have this structure so far;
class CodeGen
class CodeGenHeader : CodeGen
class CodeGenProtocolHeader : CodeGenHeader
CodeGen is not an entirely abstract class, there are properties like
FileName, Date, etc that are shared with all class', however there are other
members that although they are shared with all the derived classes, need to
|
by: abcd |
last post by:
Can someone tell me whats the exact advantage of Interfaces in C#. To me
abstract classes serves the purpose and have all good things then what is
special about interfaces...can someone tell me some real example from
system, user, developer point of view....
|
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: Oralloy |
last post by:
Hello folks,
I am unable to find appropriate documentation on the type promotion of bit-fields when using the generalised comparison operator "<=>".
The problem is that using the GNU compilers, it seems that the internal comparison operator "<=>" tries to promote arguments from unsigned to signed.
This is as boiled down as I can make it.
Here is my compilation command:
g++-12 -std=c++20 -Wnarrowing bit_field.cpp
Here is the code in...
|
| |
by: Hystou |
last post by:
Overview:
Windows 11 and 10 have less user interface control over operating system update behaviour than previous versions of Windows. In Windows 11 and 10, there is no way to turn off the Windows Update option using the Control Panel or Settings app; it automatically checks for updates and installs any it finds, whether you like it or not. For most users, this new feature is actually very convenient. If you want to control the update process,...
|
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...
|
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();...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
|
by: 6302768590 |
last post by:
Hai team
i want code for transfer the data from one system to another through IP address by using C# our system has to for every 5mins then we have to update the data what the data is updated we have to send another system
|
| |
by: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
|
by: bsmnconsultancy |
last post by:
In today's digital era, a well-designed website is crucial for businesses looking to succeed. Whether you're a small business owner or a large corporation in Toronto, having a strong online presence can significantly impact your brand's success. BSMN Consultancy, a leader in Website Development in Toronto offers valuable insights into creating effective websites that not only look great but also perform exceptionally well. In this comprehensive...
|
440
