Which of the following is the correct way to declare a bean in a Spring Boot application using annotations?

easy📝 Syntax Q12 of 15

Spring Boot - Inversion of Control and Dependency Injection

A@Autowired public MyService myService;

B@Service public void myService() {}

C@ComponentScan public class MyService {}

D@Bean public MyService myService() { return new MyService(); }

Step-by-Step Solution

Solution:

Step 1: Identify correct bean declaration syntax
The @Bean annotation on a method returning an object is the standard way to declare a bean.
Step 2: Check other options for correctness
@Service is a class-level annotation, not for methods; @ComponentScan is for scanning packages; @Autowired injects beans, not declares them.
Final Answer:
@Bean public MyService myService() { return new MyService(); } -> Option D
Quick Check:
@Bean method declares bean [OK]

Quick Trick: Use @Bean on methods returning objects [OK]

Common Mistakes:

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