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Composition in Object-Oriented Programming (OOP)

This Give you a Short and Easy Concept of Composition ..What is Composition ? how it is used? what are its Examples..<br>Hope you ppl understand.. If someone has Any Question Regarding this May ask through email or comment..<br>Thank you!

HubaAkhtar
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Composition in Object-Oriented Programming (OOP)

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  1. Composition in OOP Presented by Huba Akhtar

  2. Definition:

  3. What is Composition?

  4. Lets Suppose: Let's say we must manage rooms in a hotel. We will have a class Hotel that has several objects Floor. And each floor is composed of several Rooms.Using "is composed" give us a hint on the relationship between Floor and Room. 

  5. Continue… If we happen to destroy the object Floor, what should happen to the Rooms?? If a Floor is destroy then all the Rooms inside should also be destroy. That is a composition

  6. Example: For Example, you could have a class called Band. The data member of Band class could consist of objects from the Guitarist, Drummer, and Vocalist classes. These objects are data member of the Band class, but not the parent classes. They are related by composition, not by inheritance.

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