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Compostion,Association and aggregation in java

anish jain
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Joined: Feb 03, 2010
Posts: 129
I want to know how to implement Compostion,Aggregation and Association in Java.

I searched many time but never got any satisfactroy answer
Seetharaman Venkatasamy
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Joined: Jan 28, 2008
Posts: 5575

Please, SearchFirst
john sal
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Joined: Jul 30, 2010
Posts: 93
Stephan van Hulst wrote:Please read the message following this post


In the case of composition, the Engine is completely encapsulated by the Car. There is no way for the outside world to get a reference to the Engine. The Engine lives and dies with the car. With aggregation, the Car also performs its functions through an Engine, but the Engine is not always an internal part of the Car. Engines may be swapped, or even completely removed. Not only that, but the outside world can still have a reference to the Engine, and tinker with it regardless of whether it's in the Car.
Stephan van Hulst

Joined: Sep 20, 2010
Posts: 4616

John, I appreciate that you're helping other users out; but when you cite material written by someone else, please provide a link to the source.

The mind is a strange and wonderful thing. I'm not sure that it will ever be able to figure itself out, everything else, maybe. From the atom to the universe, everything, except itself.
john sal
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Joined: Jul 30, 2010
Posts: 93
Sure I will take care of it in future.

I agree. Here's the link:
subject: Compostion,Association and aggregation in java
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