Mansi Ma'am 1st java 4 program

1. Remote Interface (MyRemoteInterface.java)
import java.rmi.Remote;
import java.rmi.RemoteException;
public interface MyRemoteInterface extends Remote {
 String sayHello() throws RemoteException;
}
2. Remote Object (MyRemoteObject.java)
import java.rmi.server.UnicastRemoteObject;
import java.rmi.RemoteException;
public class MyRemoteObject extends UnicastRemoteObject implements
MyRemoteInterface {

 // Constructor
 public MyRemoteObject() throws RemoteException {
 super();
 }

 // Implementation of the remote method
 @Override
 public String sayHello() throws RemoteException {
 return "Hello from the remote object!";
 }
}
3. Server (Server.java)
The server will create and register the remote object with the RMI registry.
import java.rmi.Naming;
import java.rmi.RemoteException;
import java.rmi.registry.LocateRegistry;
public class Server {
 public static void main(String[] args) {
 try {
 // Start RMI registry on port 1099
 LocateRegistry.createRegistry(1099);
 // Create the remote object
 MyRemoteObject remoteObject = new MyRemoteObject();
// Register the remote object in the RMI registry with a
name
 Naming.rebind("RemoteHello", remoteObject);
 System.out.println("Server is ready.");
 } catch (Exception e) {
 e.printStackTrace();
 }
 }
}
4. Client (Client.java)
The client will look up the remote object from the RMI registry and invoke its methods.
import java.rmi.Naming;
public class Client {
 public static void main(String[] args) {
 try {
 // Look up the remote object by its name in the RMI registry
 MyRemoteInterface remoteObject = (MyRemoteInterface)
Naming.lookup("//localhost/RemoteHello");
 // Call the remote method
 String response = remoteObject.sayHello();
 System.out.println("Server response: " + response);
 } catch (Exception e) {
 e.printStackTrace();
 }
 }