What is the purpose and main functions of the Spring Application Context?

Spring Application Context is the central interface of the Spring container that manages the lifecycle and configuration of beans (objects) in an application. Its main functions:

• Creating and managing beans: The Application Context creates objects, manages their lifecycle, and injects dependencies.
• Application configuration: Loads configuration from XML, annotations, or Java classes.
• Event support: Allows publishing and listening to events within the application.
• Internationalization (i18n): Provides access to messages and localization.
• Resource access: Enables loading files, URLs, classes, and other resources.

Example of creating an Application Context based on Java configuration:

AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);
MyBean bean = context.getBean(MyBean.class);

Thus, the Application Context is an extended container that provides inversion of control and dependency management in Spring applications.