Final answer:
The annotation used to denote a Spring Boot application is at the rate of Spring Boot Application, which combines several annotations and should be placed on the class containing the main method.
Step-by-step explanation:
The annotation used to denote a Spring Boot application is at the rate of Spring Boot Application. This is a convenience annotation that is a combination of at the rate of Configuration, at sign EnableAutoConfiguration, and at signComponentScan annotations. It should be placed on the class that contains the main method, thereby marking it as the entry point of the Spring Boot application.
Example:
at signSpringBootApplicationpublic class Application { public static void main(String[] args) SpringApplication.run(Application.class, args); }}
When you run the main method, Spring Boot will start the application, and this annotation helps in setting up the configuration automatically.