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by: Chris K |
last post by:
I am relatively new to C++ and hope that this question is relevant. I
have spent some time at
the local library and some time on dejanews, but have no decided to go
ahead with my question,
since I found no satisfactory answer yet.
It is about composed/aggregated classes. I am developing a scientific
code (Monte Carlo) in
which I find it natural to have classes with several levels of
aggregation.
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by: cmrchs |
last post by:
Hi,
how do I implement aggregation and how composition in C# ?
When I say : an Airplane has a Pilot then I use aggregation but
when I say : an Airplane has a Cockpit then I use composition.
How do I implement the difference in C# ?
Here's what I try :
class Pilot
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by: Frederik Vanderhaegen |
last post by:
Hi,
Can anyone explain me the difference between aggregation and composition?
I know that they both are "whole-part" relationships and that composition
parts are destroyed when the composition whole is destroyed.
Under a "whole-part" relationship I understand the following:
the whole can't exists without the parts, but can the parts exist without
the hole?
f.e.: a car can't exist without an engine
private engine _Engine
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by: aaj |
last post by:
Hi
is it possible in VB.NET to aggregate two classes, if so could you tell me
how its done?
I have been looking for a while and can't find any examples that actually
show the physical code. Perhaps I'm using the wrong terminology?
thanks in advance
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by: DKode |
last post by:
I think i have a good handle on aggregation/composition. can someone
tell me if i am headed in the right direction with my analysis below:
We have the following objects:
Employee
EmployeeCollection
Hour
HourCollection
Infraction
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by: SenthilVel |
last post by:
Hi
Can any one let me know the websites/Pdf for learning Aggragation in C#??
Thanks
Senthil
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by: Bruce One |
last post by:
In C#, how would people implement a relationship between Customer class and
Request class, considering a customer may have 0-n requests and a request
must belong to 1 and only 1 customer...?
Would about the following options?
OPTION 1
--------------------------
public class Customer()
{ private int CustomerID;
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by: Gary Wessle |
last post by:
Hi
what is the difference "in code writing" between aggregation and
composition?
is the following correct?
aggregation (life time of both objects are independent).
class A{ /* ... */ };
class B{ A& a; /* ... */};
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by: Salman |
last post by:
The most confusing concept i have seen in OOP is the difference
between Association, Composition and Aggregation. Anyone please tell
me whats the actual difference between these three using EXAMPLES in c+
+. I shall be very very thankful to you if you prove these concepts
using examples.
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by: Hystou |
last post by:
Most computers default to English, but sometimes we require a different language, especially when relocating. Forgot to request a specific language before your computer shipped? No problem! You can effortlessly switch the default language on Windows 10 without reinstalling. I'll walk you through it.
First, let's disable language synchronization. With a Microsoft account, language settings sync across devices. To prevent any complications,...
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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...
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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,...
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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...
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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...
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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: muto222 |
last post by:
How can i add a mobile payment intergratation into php mysql website.
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by: bsmnconsultancy |
last post by:
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