Has a aggregation or composition?

Aggregation implies a relationship where the child can exist independently of the parent . Example: Class (parent) and Student (child). Delete the Class and the Students still exist. Composition implies a relationship where the child cannot exist independent of the parent.

1. Association between two objects that defines the “has-a” relationship is referred to as Aggregation. A specific type of Aggregation that implies ownership is referred to as Composition . 2.

Aggregation implies a relationship where the child can exist independently of the parent . For example, Bank and Employee, delete the Bank and the Employee still exist. whereas Composition implies a relationship where the child cannot exist independent of the parent.