Composition is again specialised form of Aggregation and we can call this as a “ death” . When we think of Object oriented nature we always think of Objects, class . Special kind of association where there is whole-part relation between two. Object Composition is useful in a C++ context because it allows us to create Composition relationships are part-whole relationships where the part and can only be part of the recipient object unless transferred again). OOP - Composition, Inheritance & Polymorphism . Composition exhibits a "has- a" relationship. .. If getArea() is called from a Circle object, it computes the area of the circle. To use an interface, again, you must derive subclasses and provide implementation to all the abstract methods declared in the interface.
In both cases, 'bar' is just referenced and Bar object may live on.
Oops!... I Did It Again (song)
I have some doubts. Will it still be association or will it become composition now?
Aggregation keeps the reference of the objects which is not the case with association. Hence the difference of implementation. I believe your association code snippet corresponds more to a Dependency relation.
uml - What is the difference between association, aggregation and composition? - Stack Overflow
When we think of Object oriented nature we always think of Objects, class objects blueprints and the relationship between them. Objects are related and interact with each other via methods. This kind of relationship is termed as association. Aggregation and Composition are subsets of association meaning they are specific cases of association.
In both aggregation and composition object of one class "owns" object of another class. But there is a subtle difference. During its bridge, Spears does a flip in the air to where the astronaut is and appears in a white jacket, short black leather skirt, and leather boots.
As a symbol of his love for her, the astronaut gifts Spears with the Heart of the Oceanthe blue diamond from the blockbuster film Titanic She questions that she "thought the old lady [Rose] dropped it into the ocean in the end", to which he responds, "Well, baby, I went down and got it for you".
Spears comments "Oh, you shouldn't have" and walks away, the astronaut shrugs and leaves.
We apologize for the inconvenience...
The video concludes as Spears and her performers continue to dance. In MaySpears performed "Oops! I Did It Again" on three of her eight concert tours. She premiered the song on the Crazy 2k Tour and later included the track as the encore to her Oops!
I Did It Again Tour inwhere it was performed with special effects involving fire. The track was reworked with " Baby One More Time" as a jazz-style performance. I Did It Again" would not be performed by Spears for nine years until it was included on the setlist of her Las Vegas residency show Britney: I Did It Again" has been covered on numerous occasions.