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.21 Oca 2015
Read moreWhat is the difference between aggregation and composition in Java with example?
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.21 Oca 2015
Read moreWhat is aggregation in Java with example?
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.
Read moreWhat is aggregation in Java with example?
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.
Read moreWhere is Aggregation used?
Aggregation should be used only in cases where there is a compositional relationship between classes , where one class is composed of other classes, where the “parts” are incomplete outside the context of the whole.
Read moreHow do you use aggregate in Java?
If a class have an entity reference, it is known as Aggregation. Aggregation represents HAS-A relationship.
Read moreWhy do we use Aggregation in OOP?
Aggregation acknowledges that the two classes have their own life cycle (i.e. can exist without each other). Each object is instantiated separately. In the example of a hand of cards, the cards will already exist before they are added to a Hand class.
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