Core Spring Annotations — Spring Technical Interview Questions & Answers

@Autowired, @Qualifier, @Value and @Scope.

Core Spring Annotations

  • Core Spring Annotations is a Spring topic. In plain words you use it for a short Core Spring Annotations example in a small REST app. Don’t start with a slogan — start with that picture.
  • Smallest example: the smallest Core Spring Annotations example you can type. Type it, run it, and say what you see. If you can do that from memory, you know Core Spring Annotations.
  • From the example next to this theory: @Autowired, @Qualifier, @Value and @Scope.
  • Trap: only saying “Core Spring Annotations” with no example. Fix that before you talk about advanced Spring.
  • Viva: what is Core Spring Annotations? Then show the smallest Core Spring Annotations example you can type. Then name the trap.

Technical Interview Tip: What is Core Spring Annotations? Show this: the smallest Core Spring Annotations example you can type. Trap: only saying “Core Spring Annotations” with no example.

Code Examples for Core Spring Annotations

Core Spring Annotations — working example

// Topic: Core Spring Annotations
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
class TopicController {
  @GetMapping("/api/topic")
  String topic() {
    return "Spring Boot: Core Spring Annotations";
  }
}

Core Spring Annotations: GET /api/topic returns this title string.

How to Explain Core Spring Annotations to an Interviewer

What is Core Spring Annotations?

Used for a short Core Spring Annotations example a small REST app Not just the heading

Give one small example of Core Spring Annotations.

the smallest Core Spring Annotations example you can type @Autowired, @Qualifier, @Value and @Scope

What mistake do beginners make with Core Spring Annotations?

only saying “Core Spring Annotations” with no example Show the fix

Where do you use Core Spring Annotations?

a small REST app a short Core Spring Annotations example