What is composition in OOP in Java?

Composition is one of the fundamental concepts in object-oriented programming. It describes a class that references one or more objects of other classes in instance variables . This allows you to model a has-a association between objects. You can find such relationships quite regularly in the real world.

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What is composition in Example?

The definition of composition is the act of putting something together, or the combination of elements or qualities. An example of a composition is a flower arrangement . An example of a composition is a manuscript. An example of a composition is how the flowers and vase are arranged in Van Gogh’s painting Sunflowers.

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Why do we need composition in Java?

Benefits of using Composition: Composition allows us to reuse the code . In Java, we can use multiple Inheritance by using the composition concept. The Composition provides better test-ability of a class. Composition allows us to easily replace the composed class implementation with a better and improved version.

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