Description: The `@PostConstruct` annotation is a feature of Java used in the context of programming with Java EE and Spring Framework. Its main function is to indicate that a method should be executed after dependency injection has been completed in a bean. This means that once the framework has created an instance of an object and injected all its dependencies, the method annotated with `@PostConstruct` is automatically invoked. This annotation is part of the Java EE specification and has been integrated into various frameworks to facilitate bean initialization. By using `@PostConstruct`, developers can perform additional configurations or initialize resources that depend on the injected dependencies, ensuring that the object is fully prepared for use. This feature is especially useful in complex applications where the configuration of a bean may depend on other components of the system. Additionally, `@PostConstruct` helps keep the code clean and organized by allowing the separation of initialization logic from the bean’s constructor, thus improving code readability and maintainability.
