Spring Best Practices and Bean Wiring Configurations

In the previous chapter, we learned how Spring Framework implements the Inversion of Control (IoC) principle. Spring IoC is the mechanism to achieve loose coupling between object dependencies. A Spring IoC container is the program that injects dependencies into an object and makes it ready for our use. Spring IoC is also known as dependency injection. In Spring, the objects of your application are managed by the Spring IoC container and are also known as beans. A bean is an object that is instantiated, assembled, and managed by a Spring IoC container. So, a Spring container is responsible for creating the beans in your application and coordinating the relationships between those objects via dependency injection. But, it is the developer's responsibility to tell Spring which beans to create and how to configure them together...