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Tag: What is the use of Aggregation and composition in Java?

What is the difference between aggregation and composition in Java with example?

1 April 2022 Enpatika.com Genel

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

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What is the difference between aggregation and composition in Java with example?

1 April 2022 Enpatika.com Genel

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

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What is aggregation in Java with example?

1 April 2022 Enpatika.com Genel

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.

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What is aggregation in Java with example?

1 April 2022 Enpatika.com Genel

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.

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How do you use aggregate in Java?

1 April 2022 Enpatika.com Genel

If a class have an entity reference, it is known as Aggregation. Aggregation represents HAS-A relationship.

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Why do we use Aggregation in OOP?

1 April 2022 Enpatika.com Genel

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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Why do you need Aggregation?

1 April 2022 Enpatika.com Genel

By aggregating all the data points, we can identify the source of traffic and see how they progress through the customer journey . In turn, that helps us understand the actual value of the marketing activity.

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