Java RMI Shopping Cart

This project is a simple implementation of a Java RMI (Remote Method Invocation) shopping cart system. It includes a Server class that sets up a registry and binds several products to it, and Admin and Customer clients that interact with the server.

Code Overview

The Server class in Server.java creates a few Product objects and a Cart object. Each Product and the Cart are then exported as a stub using UnicastRemoteObject.exportObject(). These stubs are bound to a registry which is set up on localhost at port 9100.

The Admin and Customer clients can look up the product and cart stubs in the registry using their names ("laptop", "mobilePhone", "charger", "powerBank", and "access_cart") and interact with them as if they were local objects.

Directory Structure

The project is organized into two main directories:

• server: Contains the Server.java, Product.java, ProductInterface.java, CartInterface.java, and Cart.java files.
• client: Contains the Admin.java, Customer.java, ProductInterface.java, and CartInterface.java files.

Running the Server

To run the server, navigate to the server directory and execute the Server class. This will set up the registry and bind the product and cart stubs to it. The server will print "Server has been started..." to indicate successful setup.

Running the Clients

To run the Admin or Customer clients, navigate to the client directory and execute the respective class. The clients will interact with the server as if the Product and Cart objects were local to them.

CLI Commands

To start the RMI registry, compile and run the server, compile and run the clients, use the following commands:

• Start RMI registry: start rmiregistry 9100
• Compile and run server: javac Server.java and java Server
• Compile and run client: javac Admin.java and java Admin or javac Customer.java and java Customer