Learn how the DI can be used to decouple the dependencies between different components.

So it is tightly coupled. Now lets see how we can avoid this by using the Dependency Injection design pattern. The Spring framework provides prowerful container to manage the components. The container is based on the Inversion of Control (IoC) principle and can be implemented by using the Dependency Injection (DI) design pattern. Here the component only needs to choose a way to accept the resources and the container will deliver the resource to the components.