What is the role of Spring in implementing the inversion of control principle?

Spring implements the Inversion of Control (IoC) principle through a Dependency Injection container. Instead of objects creating and managing their dependencies themselves, Spring takes on this responsibility.

This means that:

• Objects do not directly create their dependencies but receive them from outside.
• Dependency configuration is centralized in the Spring container.
• This enhances modularity, testability, and simplifies object lifecycle management.

Example: a service class does not create a DAO directly but receives it via constructor or setter, and Spring automatically injects the required instance.