What is Inversion of Control (IoC) in Spring framework?

Inversion of Control (IoC) is a fundamental concept in the Spring framework, essential for understanding its architecture and dependency injection mechanism. IoC refers to the transfer of control over the lifecycle of objects from the application code to a container or framework.

The focus keyword, "Inversion of Control (IoC)," highlights how Spring manages the creation and flow of objects in an application. Through IoC, developers can achieve loose coupling between components, making the code more modular, maintainable, and testable.

IoC in Spring framework promotes the principles of dependency injection, where objects receive their dependencies from an external source, such as a Spring container, rather than creating or managing them directly. This approach enhances flexibility and scalability in application development.

By leveraging Inversion of Control in the Spring framework, developers can focus on writing business logic while delegating the responsibility of object instantiation and management to the container, resulting in robust and efficiently designed applications.