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