POS-LAYERED POS System for a Supermarket (Demo Desktop Application) using Layered Architecture. Technology: ☑️ Java, Java Swing ☑️ OOP Concepts ☑️ Layered Architecture ☑️ MySQL IDE: ☑️ Apache Netbeans IDE #possystem #java #javaswing #mysql #oop #layered #netbeans #desktopapplications #jdbc