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.
4  17165 
Salman wrote:
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.
What book on OOP/OOD are you reading that doesn't explain those things?
On Feb 22, 1:34 am, "Victor Bazarov" <v.Abaza...@com Acast.netwrote:
Salman wrote:
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.
What book on OOP/OOD are you reading that doesn't explain those things?
Im reading C++ by deitel and deitel , it doesn't have these concepts.
Infact it should not have because its c++ book not an OOP or ODA book.
Please provide me any good links. I badly need to learn these three
things.
Salman wrote:
On Feb 22, 1:34 am, "Victor Bazarov" <v.Abaza...@com Acast.netwrote:
>Salman wrote:
>>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.
What book on OOP/OOD are you reading that doesn't explain those
things?
Im reading C++ by deitel and deitel , it doesn't have these concepts.
Infact it should not have because its c++ book not an OOP or ODA book.
Please provide me any good links. I badly need to learn these three
things.
If you need book recommendations on OO[A/D/P], I thing you should ask
in 'comp.object'. Infact, that's a much better newsgroup to ask about
association, composition, aggregation. They do know C++ and can very
likely supply you with examples as well...
V
--
Please remove capital 'A's when replying by e-mail
I do not respond to top-posted replies, please don't ask
Salman wrote:
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.
Try googling http://ootips.org/uml-hasa.html
even has C++ examples.
john This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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
|
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.
|
by: Nice Chap |
last post by:
Aggregation in COM was defined as 'Exposing an interface of an inner object
by the outer object as though it were an interface of the outer object'. Is
this type of aggregation possible in c#?
For example...
Class COuter - 'Contains' an instance variable of type CInner
Class CInner - Implements IList
Can COuter be made to look like its implementing IList?
|
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
|
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
| | |
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; /* ... */};
|
by: fireball |
last post by:
hi, I got confused for a moment about creating data structure for UML
composition (strong aggregation) relation one-to-many.
I used Rose/DataModeler to do so.
<filled_diamond>--------
I got P/FK (primary key of my component is foreign key of it's container) in
my child table:
Parent: PK Parent_ID
|
by: dev_15 |
last post by:
Hi, just a simple question in an OO design in C++ if i am using
composition
to model a relationship i would have the object as a member(or pointer
member) of the class
ie class Airport
{
private:
CAirplane* airplane;
|
by: snewman18 |
last post by:
In learning about design patterns, I've seen discussion about using
inheritance when an object's relationship to another object is 'is-a'
and composition when the relationship is 'has-a'.
Since this is all new and I'm still learning, I was hoping someone can
give me some pointers on best practices on applying these ideas. If my
logic is incorrect on anything, please don't hesitate to tell me where
I'm wrong - I'm completely open to any...
|
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: 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: 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();...
|
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...
|
by: adsilva |
last post by:
A Windows Forms form does not have the event Unload, like VB6. What one acts like?
| | |
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...
| | |
