Spring Boot Annotations - @SpringBootApplication, @Component, @Bean, etc.

    Question 1: CORE SPRING BOOT - @SpringBootApplication Annotation

    The @SpringBootApplication annotation is a convenience annotation that combines which three annotations?

    Question 2: CORE SPRING BOOT - @Component Annotation

    What is the main purpose of the @Component annotation in Spring Boot?

    Question 3: CORE SPRING BOOT - @Bean Annotation

    What is the role of the @Bean annotation in Spring Boot?

    Question 4: CORE SPRING BOOT - Code Snippet (@Autowired)

    What will happen when the following code executes?

    @Component
public class ServiceA {
}

@Component
public class ServiceB {
    @Autowired
    private ServiceA serviceA;
}

    Question 5: CORE SPRING BOOT - @Controller vs @RestController

    Which statement correctly distinguishes between @Controller and @RestController?

    Question 6: CORE SPRING BOOT - Code Snippet (@ConfigurationProperties)

    What is the purpose of the following code?

    @ConfigurationProperties(prefix = "app")
@Component
public class AppProperties {
    private String name;
    private int version;
    // getters and setters
}

    Question 7: CORE SPRING BOOT - @Service and @Repository

    Which of the following is true regarding @Service and @Repository annotations?

    Question 8: CORE SPRING BOOT - Code Snippet (@ConditionalOnMissingBean)

    What does the following code do?

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

    Question 9: CORE SPRING BOOT - @Primary Annotation

    What is the purpose of the @Primary annotation in Spring Boot?

    Question 10: CORE SPRING BOOT - @PostConstruct Annotation

    When is a method annotated with @PostConstruct executed in a Spring Boot bean?