LP 1

 CLIENT

import java.rmi.*;

import java.util.*;

public class client {

    public static void main(String[] args) {

        Scanner sc = new Scanner(System.in);

        try {

            String serverURL="rmi://localhost/server";

            serverinterface Serverinterface = (serverinterface)Naming.lookup(serverURL);  

            System.out.println("Enter first Number :");

            double num1 =sc.nextDouble();

            System.out.println("Enter 2nd number:");

            double num2 =sc.nextDouble();  

            System.out.println("Fisrt Number is :" + num1);

            System.out.println("Fisrt Number is :" + num2);

            System.out.println("*************Result************");

            System.out.println("Addition is " + serverinterface.addition(num1,num2));

            System.out.println("substraction is " + serverinterface.Sub(num1,num2));

            System.out.println("multiplication is " + serverinterface.Multi(num1,num2));

            System.out.println("division is " + serverinterface.Divi(num1,num2));

           

        } catch (Exception e) {

            System.out.println("Exception Occured at client"+ e.getMessage());

           

        }

    }

}

SERVER

import java.rmi.*;

public class server {

 

    public static void main(String[] args) {

        try {

            serverimplementation Serverimplementation = new serverimplementation();

            Naming.rebind("server", Serverimplementation);

            System.out.println("Server Started");

        } catch (Exception e) {

            System.out.println("Exception occured at server" + e.getMessage());

           

    }

   

}

}

SERVER INTERFACE

import java.rmi.Remote;

import java.rmi.RemoteException;

import java.rmi.*;

interface serverinterface extends Remote{

    public static double addition(double num1,double num2) throws RemoteException {

        return num1+num2;

    }

    public static double Sub(double num1,double num2) throws RemoteException {

        return num1-num2;

    }

    public static double Multi(double num1,double num2) throws RemoteException {

        return num1*num2;

    }

    public static double Divi(double num1,double num2) throws RemoteException {

        return num1/num2;

    }      

}

SERVER IMPLEMENTATION

import java.rmi.*;

import java.rmi.RemoteException;

import java.rmi.server.UnicastRemoteObject;

import java.rmi.server.*;

public class serverimplementation extends UnicastRemoteObject implements serverinterface {

    public serverimplementation()throws RemoteException{

    }

    public double addition(double num1,double num2) throws RemoteException{

        return num1 + num2 ;

    }

    public double Sub(double num1,double num2) throws RemoteException{

        return num1 - num2 ;

    }

    public double Multi(double num1,double num2) throws RemoteException{

        return num1 * num2 ;

    }

    public double Divi(double num1,double num2) throws RemoteException{

       if (num2 != 0) {

        return num1 / num2 ;

       

       }

       else{

        System.out.println("Cant divide the number");

       }

       return num1/num2;

    }

   

}