EntityManager

EntityManager is a key component in Java-based applications that manage the interaction with a database. Think of it as a controller that handles creating, reading, updating, and deleting data records (entities). It acts as a bridge between the application's code and the storage system, ensuring data is properly synchronized and persisted. EntityManager manages the lifecycle of entities, keeps track of changes, and handles database transactions, providing a structured way to interact with data without needing to write complex database code directly.