Mastering Spring Framework Fundamentals - Coding Beans to Use Setter Dependency Injection

The video tutorial explains the concept of dependency injection in Java, focusing on two main types: constructor-based and setter-based. Constructor-based injection is preferred as it ensures that a bean cannot exist without its dependencies, reducing the risk of exceptions. The tutorial then demonstrates how to implement setter-based dependency injection by removing the constructor and adding a setter method, using IntelliJ for auto-generating the setter. Finally, it mentions the need to adapt the XML configuration file for setter injection, which will be covered in the next video.

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