How do you find aggregation in Java?

In Short, a relationship between two objects is referred to as an association, and an association is known as composition when one object owns another while an association is known as aggregation when one object uses another object .16 Eyl 2021

In Java, the ‘final’ keyword is used to represent Composition . This is because the ‘Owner’ object expects a part object to be available and function by making it ‘final’. Let us take another example that depicts both inheritance and composition.

Association vs Aggregation vs Composition

Aggregation in Java is a relationship between two classes that is best described as a “has-a” and “whole/part” relationship . It is a more specialized version of the association relationship. The aggregate class contains a reference to another class and is said to have ownership of that class.

Aggregation vs Composition. Aggregation implies a relationship where the child can exist independently of the parent . whereas Composition implies a relationship where the child cannot exist independent of the parent.21 Oca 2015