Java composition 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.

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.

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.