Thread: java.rmi.unknownhostexception :unknown host: pc error

Hello everyone,

I am beginner in java programming,when i try to run the program on the server side it is running fine but on the client side when i execute the code i get the error message java.rmi.unknownhostexception :unknown host: pc error. Program contains 4 files. I will post the code below.

ForExServerIntf.java

import java.rmi.*;
public interface ForExServerIntf extends Remote
{
  float currency(float f1) throws RemoteException;
}

ForExServerImpl.java

import java.rmi.*;
import java.rmi.server.*;
public class ForExServerImpl extends
UnicastRemoteObject implements ForExServerIntf
{
  public ForExServerImpl() throws RemoteException{}
  public float currency(float f1)
  throws RemoteException
  {
    return f1/49;
  }
}

ForExServer.java

import java.rmi.*;
import java.net.*;
public class ForExServer
{
  public static void main(String args[])
  {
    try
    {
      ForExServerImpl ForExImpl=new ForExServerImpl();
      Naming.rebind("ForExServer",ForExImpl);
      System.out.println("Server is running");
    }
    catch(Exception e)
    {
      System.out.println(e);
    }
  }
}

ForExClient.java

import java.io.*;
import java.rmi.*;
public class ForExClient
{
  public static void main(String args[])
  {
    try
    {
      String ForExURL="rmi://"+args[0]+"/ForExServer";
      ForExServerIntf ForExServerIntf=(ForExServerIntf)Naming.lookup(ForExURL);
      System.out.println("Enter value in rupees:"+args[1]);
      float f1=Float.valueOf(args[1]).floatValue();
      double d=ForExServerIntf.currency(f1);
      System.out.println("Converted value from rupees to dollar:"+d);
      double r=((int)((d*100.0)+0.5))/100.0;
      System.out.println("\nRounded value is:"+r);
    }
    catch(Exception e)
    {
      e.printStackTrace();
      System.out.println("Error");
    }
  }
}

Attachment of client side is given below
rmiregistry1.JPG

Please can anyone help me to solve the error.