Difference between aggregation and composition

Association: Association represents a relationship between two or more objects where all objects have their own life cycle and there is no owner . Association is based on HAS-A Relationship. This is represented by a solid line.

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 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

Yes, a comic book is a kind of book so inheritance makes sense. If it doesn’t make sense use association or the has-a relationship instead. Only use inheritance when the child class is really a type of the parent class, otherwise use association .