Optum Global Solutions Advisory Services Consultant Interview Questions and Answers

Annotations are used in Springboot to simplify configuration and reduce boilerplate code.

• Annotations are used to define the behavior of Spring components

• They can be used to define the scope of a bean, inject dependencies, and handle exceptions

• Some commonly used annotations include @Component, @Autowired, and @ExceptionHandler

Java 8 introduced several new features including lambda expressions, streams, and default methods.

• Lambda expressions allow for functional programming and simplify code.

• Streams provide a way to process collections of data in a functional style.

• Default methods allow for adding new methods to interfaces without breaking existing implementations.

• Other features include the Optional class, Date and Time API, and Nashorn Java