What is Dependency Injection in Spring?

Can you explain what Dependency Injection is in the Spring framework?

Sure! Dependency Injection (DI) is a design pattern used in Spring to manage object dependencies. It allows the framework to create and inject dependencies into classes, promoting loose coupling.

What are the benefits of using Dependency Injection?

The benefits include improved code maintainability, easier testing, and better separation of concerns, which leads to more modular applications.

Can you give me an example of how to implement it in Spring?

Absolutely! You can use annotations like @Autowired to inject dependencies. For example, if you have a service class, you can annotate its constructor with @Autowired to let Spring know to inject the required dependencies.

What are the different types of Dependency Injection in Spring?

There are three main types: Constructor Injection, Setter Injection, and Interface Injection. Constructor Injection is the most commonly used.