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Inheritance vs composition vs aggregation in Java

What is the relationship between aggregation and inheritance relationship?

1 April 2022 Enpatika.com Genel

Aggregation is “a part of” relationship . Example: A student object is a part of College object. Inheritance is a “is a “relationship where one or more classes are derived from a base class.

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What is the difference between aggregation and composition?

1 April 2022 Enpatika.com Genel

Aggregation means one object is the owner of another object. Composition means one object is contained in another object . The direction of a relation is a requirement in both Composition and Aggregation.

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What is the difference between aggregation and composition?

1 April 2022 Enpatika.com Genel

Aggregation means one object is the owner of another object. Composition means one object is contained in another object . The direction of a relation is a requirement in both Composition and Aggregation.

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What is inheritance How is it different from aggregation in Java?

1 April 2022 Enpatika.com Genel

The difference is typically expressed as the difference between “is a” and “has a”. Inheritance, the “is a” relationship , is summed up nicely in the Liskov Substitution Principle. Aggregation, the “has a” relationship, is just that – it shows that the aggregating object has one of the aggregated objects.6 Kas 2008

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What is inheritance How is it different from aggregation in Java?

1 April 2022 Enpatika.com Genel

The difference is typically expressed as the difference between “is a” and “has a”. Inheritance, the “is a” relationship , is summed up nicely in the Liskov Substitution Principle. Aggregation, the “has a” relationship, is just that – it shows that the aggregating object has one of the aggregated objects.6 Kas 2008

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Is aggregation is stronger form of inheritance?

1 April 2022 Enpatika.com Genel

An aggregation is a stronger form of association relationship and is represented with a solid diamond at the aggregate end.

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How inheritance is different from aggregation in Java?

1 April 2022 Enpatika.com Genel

When a subclass inherits from a subclass, it typically inherits both the implementation and the interface. This, in turn, means that you’re forced to accept both as constraints on your class. With aggregation, you get to choose either implementation or interface, or both — but you’re not forced into either .6 Kas 2008

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