What is Orientation, Association, Aggregation and Composition in java

Hello Dear Reder, In this article, we are discussing what is Orientation, Association, Aggregation as well as Composition in Java Language. I will try to give some Real-world Examples which makes it easy to understand for you. 

Orientation, Association, Aggregation and Composition in Java 

📝Orientation: Seeing or pursue everything around as an object. is called as object-orientation.

• java sees everything around its self as an object. hance it is an object-oriented programming language.

📝Association ( Has – A Relationship ): Association is one of the concepts of Object Orientation which is also called as Has–A Relationship.

It is a process of one or many Objects getting associated with another Object.

✔There are 2 forms of Association : 

I. Composition.
II. Aggregation. 


📝Composition: A composition is a special form of association. where an associated Object can not logically independently exists on its own without Owner Object.

• If Owner Object is destroyed. then the associated object is also destroyed. Hence it is called Strong Has – A Relationship.

Example of Composition: Plant and Leaves.

                                                                 

• The plant is a whole and Leaves are parts. If the plant is destroyed. then all corresponding Leaves for that Plant should be destroyed.

One More Example: Human and Heart.

 📝Aggregation: An aggregation is a special form of association. where an associated Object can logically independently exist even without the Owner Object.

• If Owner Object is destroyed still an associated Object can exist. Hence it is called Weak Has – A Relationship.  

Example of Aggregation: Driver and Car.

       

•    If Driver Object is destroyed it will not affect Car Object and Vise-Versa.

Example (2): Employee and company.
                                           

Admin Words:- Hopefully, now you can understand Orientation, Association, Aggregation, and Composition. if you still confused then please remind us to comment below of this post I will try to make it more easy for you. And stay away to learn programs J with Us. and also Read our Next Program.

📢Next Topic: Java Compilation Process | WORA Architecture | What is JDK, JVM, JRE?

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