Learn Java from Scratch - A Beginner's Guide - Step 07 - Exploring Jakarta CDI with Spring Framework and Java

The video tutorial introduces Context and Dependency Injection (CDI), a specification part of Jakarta EE, and its support in the Spring Framework. It covers the history and purpose of CDI, explaining its role as an interface without implementation. The tutorial demonstrates how to add CDI dependencies to a project and provides a practical example of setter injection using both CDI and Spring annotations. It highlights the similarities between CDI annotations like @Inject and @Named with Spring's @Autowired and @Component, emphasizing CDI as an alternative to Spring annotations.

What is the primary purpose of CDI in the context of Jakarta EE?

• To provide a graphical user interface

• To define a set of annotations for dependency injection

• To manage database connections

• To handle network communications

Which version of Java EE introduced the CDI specification?

• Java EE 5

• Java EE 6

• Java EE 8

• Java EE 7

What is the first step to use CDI in a project?

• Compile the project

• Add a dependency to the project configuration file

• Create a new Java class

• Write a unit test

In the example provided, what was the mistake made during setter injection?

• Not initializing the data service

• Forgetting to import the necessary packages

• Placing the @Autowired annotation on the getter method

• Using the wrong class for injection

What is the equivalent of the @Component annotation in CDI?

• @Named

• @Scope

• @Inject

• @Qualifier

Which annotation in CDI serves a similar purpose to @Autowired in Spring?

• @Scope

• @Named

• @Inject

• @Qualifier

Why is it beneficial to be aware of CDI annotations even if you use Spring?

• They are required for all Java applications

• They offer alternative ways to perform dependency injection

• They simplify database management

• They improve application performance