Explain ApplicationContext in Spring framework.

A Spring ApplicationContext is a subinterface of BeanFactory.It is somewhat similar to BeanFactory in terms that both define beans,bind them together and make them available on request.In its functioning and ApplicationContext has following advanced features:

-Resolving Messages, supporting internationalization
-Support for an eventing mechanism, allowing application objects to publish events and they can register to be notified of events optionally.
-Supports generic loading and access of file resources like image files.
-Supports customization of container behavior through automatic recognition of special application-specific or generic, bean definitions.