Learn Java from Scratch - A Beginner's Guide - Step 03 - Primary and Qualifier - Which Spring Annotation Should You Use?

The video tutorial explains the use of sorting algorithms in complex algorithms, focusing on the use of @Primary and @Qualifier annotations in auto-wiring beans. It discusses when to use each annotation, emphasizing that @Qualifier has higher priority than @Primary. The tutorial provides examples of how to implement these annotations in code, highlighting the importance of considering the perspective of the class using the dependency. It concludes with best practices for using these annotations effectively.

What is the purpose of using @Primary in a Spring application?

Explain the difference between @Primary and @Qualifier annotations.

What should you consider when deciding between using @Primary and @Qualifier?

In what scenario would you prefer to use @Qualifier over @Primary?

How does the presence of a qualifier annotation affect bean wiring?