How does Spring framework support inversion of control (IoC)?

How Spring framework supports Inversion of Control (IoC)

Spring framework supports Inversion of Control (IoC) through the core concept of dependency injection. In IoC, instead of objects controlling the flow of a program, control is inverted - meaning the framework or container manages the instantiation and lifecycle of objects.

Spring achieves IoC by allowing developers to define dependencies in a configuration file (XML or annotation-based) and then injecting those dependencies into the objects at runtime. This decouples the object creation from their usage, making the application more flexible, maintainable, and testable.

The focus keyword for this topic is Spring framework Inversion of Control (IoC).