Can you explain what states an Entity object can have?

The Entity object in Java (for example, in JPA/Hibernate) can be in several states:

• Transient — the object is created in memory but not associated with a session or persistence context, and not saved in the database.
• Persistent — the object is associated with the EntityManager session and is being tracked; changes are automatically synchronized with the database upon commit.
• Detached — the object was previously persistent, but the session is closed or the object is detached; changes are not tracked and are not automatically saved.
• Removed — the object is marked for deletion from the database upon the next commit.

Understanding these states is important for correct ORM operation and object lifecycle management.