UBS Cloud Engineer Interview Questions and Answers

ControllerAdvice in Java is used to handle exceptions globally in Spring MVC applications.

• ControllerAdvice is an annotation used in Spring MVC to define global exception handlers.

• It allows you to centralize exception handling logic in one place.

• You can define methods annotated with @ExceptionHandler inside a ControllerAdvice class to handle specific exceptions.

• ControllerAdvice can also be used to define model attribute

The @Qualifier keyword in Java is used to disambiguate beans when multiple beans of the same type are present in the Spring application context.

• Used in Spring framework to specify which bean should be autowired when multiple beans of the same type are present

• Can be used on fields, constructor arguments, or method parameters

• Example: @Qualifier("beanName")