Chapter 1, Why Dependency Injection?, gives you a detailed insight into various concepts, such as Dependency Inversion of Principle (DIP), Inversion of Control (IoC), and Dependency Injection (DI). It also talks about practical use cases where DI is commonly used.
Chapter 2, Dependency Injection in Java 9, gets you acquainted with Java 9 features and its modular framework, and explains how to implement DI using the service loader concept.
Chapter 3, Dependency Injection with Spring, teaches you how to manage dependency injection in the Spring framework. It also describes a different way to implement DI using Spring.
Chapter 4, Dependency Injection with Google Guice, talks about Guice and its dependency mechanism, and ...
