Client.java

import java.rmi.NotBoundException;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
import java.rmi.registry.Registry;

public class Client {
    public static void main(String[] args) {
        try {
            // Step 1: Connect to RMI registry
            Registry registry = LocateRegistry.getRegistry("localhost", 1099);

            // Step 2: Lookup the remote object
            Arithmetic stub = (Arithmetic) registry.lookup("ArithmeticService");

            // Step 3: Perform arithmetic operations
            double a = 10, b = 5;
            System.out.println("✅ Arithmetic Operations from Remote Server:");
            System.out.println("Addition: " + stub.add(a, b));
            System.out.println("Subtraction: " + stub.subtract(a, b));
            System.out.println("Multiplication: " + stub.multiply(a, b));
            System.out.println("Division: " + stub.divide(a, b));

        } catch (RemoteException e) {
            System.err.println("❌ RemoteException: " + e.getMessage());
            
        } catch (NotBoundException e) {
            System.err.println("❌ Service not found in registry: " + e.getMessage());
        } catch (Exception e) {
            System.err.println("❌ Unexpected exception: " + e.getMessage());
            
        }
    }
}