Now that you have reached this chapter, you should know what Dependency Injection (DI) is, why it's so important, how it's projected in recent versions of Java, and how to implement it with popular frameworks, such as Spring and Google Guice, with various scopes.
It's said that knowing something is not enough until it's applied with best methodologies and practices. Knowledge is power only when it's implemented in the right manner. An improper approach may create a big mess.
The software industry is moving toward modularity. The concepts of DI and Inversion of Control (IoC) containers were created due to this, and this is why they are so popular today. Still, many developers don't know how to utilize DI to its full potential.
In this chapter, we will explore the real strength of DI by learning the right...
