What is composition in Java?

The composition is a design technique in java to implement a has-a relationship . Java Inheritance is used for code reuse purposes and the same we can do by using composition. The composition is achieved by using an instance variable that refers to other objects.

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What is aggregation example?

An example of an aggregation is the group of people involved in a class action lawsuit . Aggregation is defined as the act of accumulating things or individuals. An example of aggregation is finding and organizing a group of people injured by harmful effects of a medicine.

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What is composition and aggregation in Java with example?

Difference between association, aggregation, composition in Java AggregationCompositionClasses in relation can exist independentlyOne class is dependent on Another Independent class. The Dependent class cannot exist independently in the event of the non-existence of an independent class.Association, Composition and Aggregation in Java – Scaler Topics www.scaler.com › topics › association-composition-and-aggregation-in-java

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