Dependency, Inheritance, and Their Implementations

In this lesson, we’ll explore the concepts of dependency and inheritance relationships. We’ll look at clear explanations and examples to help solidify our understanding of these important object relationships. In the end, we’ll summarise all the relationships.

Dependency relationship

The dependency relationship represents a situation where one class, known as the dependent class, relies on another class, known as the dependency class, to perform a task or provide functionality. The dependent class utilizes the services or resources of the dependency class without having ownership or direct control over any of them. The dependency is typically expressed through method parameters, local variables, or interfaces.