30.5. Core Concepts of Spring

Try these first

1. 1.

   What does IoC stand for?

   Hint

   Think about who's managing the control in your application.

2. 2.

   What is a Spring Bean?

   Hint

   Recall the definition of a Spring-managed object.

3. 3.

   What is the main principle of Inversion of Control?

   • Control flows from the developer
   • Control flows from the framework

   Hint

   Recall the definition of IoC.

4. 4.

   True or False: In Dependency Injection, dependencies are created inside the class.

   • True
   • False

   Hint

   Think about what DI actually means.

5. 5.

   Design a simple Spring application that utilizes all three types of configuration (XML, Annotation, Java). Explain each part of your design.

   Hint

   Focus on how each method complements the others.

6. 6.

   Discuss the potential drawbacks of using Spring’s DI and how those can be mitigated in real-world applications.

   Hint

   Consider the perspective of a developer new to Spring.