This folder contains two connected NetBeans projects of a simplest possible Bookstore Client-Server application using RMI technology and implementing 3-tier architecture with View (GUI using Swing Application Framework), Controller, and Persistence (using JPA, database is automatically created using entities' mapping metadata) tiers. You have first to start the server application (eventually you have to set connection properties in META-INF/persistence.xml), and then the Client which shows a gui window using swing.