---------------------------------------------------------------------------------
                POLICY File
---------------------------------------------------------------------------------

grant 
{
    permission java.net.SocketPermission "*:1024-65535",
        "connect,accept";
    permission java.io.FilePermission
        "C:\Sarita\Sem-5\\CORBA\\RMIAsign\\Prac-5\\-", "read";
        
};


---------------------------------------------------------------------------------
                DecodeServer.java
---------------------------------------------------------------------------------

import java.rmi.Naming;
import java.rmi.server.UnicastRemoteObject;
import java.rmi.RMISecurityManager;
import java.rmi.RemoteException;

import java.util.Properties;
import java.util.Date;
import java.util.Calendar;
import java.io.*;
import java.util.*;

import java.rmi.*;

interface DecodeInterface extends Remote 
{
    public String getDecode(String str) throws RemoteException;
}


publicclass DecodeServer extends UnicastRemoteObject implements DecodeInterface 
{
    public DecodeServer() throws RemoteException 
    {
        super();
    }
    
    public String getDecode(String s) throws RemoteException 
    {
        char str[] = s.toCharArray();
        char str1[] = newchar[20];

        for(int i=0;i<str.length;i++)
        {
            if(str[i] != ' ')
            {
                str1[i] = str[i];
                str1[i] -= 1;
            }
            else
            {
                str1[i] = str[i];
            }
        }
        
        String dstr = new String(str1);
        
        Calendar cal = Calendar.getInstance();

        String arr[] = new String[10];
        StringTokenizer st = new StringTokenizer(dstr);
        int i = 0,cnt=0;
        while(st.hasMoreTokens())
        {
            arr[i] = st.nextToken();
            String tim = cal.get(Calendar.HOUR) + ":" + cal.get(Calendar.MINUTE) + ":" + cal.get(Calendar.SECOND);
            arr[i] = arr[i] + tim;
            cnt++;
            i++;
        }

        String ans = "";
        for(i=0;i<cnt;i++)
        {
            ans = ans + arr[i] + ' ';
        }
        
        return ans;    
    }
    
    publicstaticvoid main(String[] args) 
    {
        try 
        {
            System.setSecurityManager(new RMISecurityManager());
            
            DecodeServer strObj = new DecodeServer();
            Naming.rebind("getDecode", strObj);
            System.out.println("Ready to continue....");
        }
        catch (Exception e) {
            System.err.println(e);
        }
    }
}


---------------------------------------------------------------------------------
                DecodeClient.java
---------------------------------------------------------------------------------

import java.rmi.Naming;
import java.rmi.RMISecurityManager;
import java.io.*;
import java.util.*;

publicclass DecodeClient 
{
    publicstaticvoid main(String[] args) 
    {
        try 
        {
            System.setSecurityManager(new RMISecurityManager());
            
            DecodeInterface Obj = (DecodeInterface)Naming.lookup("getDecode");
            
            BufferedReader input=new BufferedReader(new InputStreamReader(System.in));
            System.out.println("\nEnter String : ");
            String s = input.readLine();

            input.close();
            
            char str[] = s.toCharArray();
            char str1[] = newchar[20];
            for(int i=0;i<str.length;i++)
            {
                if(str[i] != ' ')
                {
                    str1[i] = str[i];
                    str1[i] += 1;
                }
                else
                {
                    str1[i] = str[i];
                }
    
            }
            
            String estr = new String(str1);
            String result = Obj.getDecode(estr);

            System.out.println("\nThe Encrypt String is : " + estr);
            System.out.println("\n\nThe Decrypt String is : " + result);
        }
        
        catch(Exception e) 
        {
            System.err.println(e);
        }
    }
}
        
        
/*
========================================================================================
                    OUTPUT
========================================================================================


C:\Sarita\Home28-10\RMIAsign\Prac-5>set classpath=%classpath%;c:\Sarita\Home28-10\RM
IAsign\Prac-5

C:\Sarita\Home28-10\RMIAsign\Prac-5>javac *.java

C:\Sarita\Home28-10\RMIAsign\Prac-5>rmic DecodeServer

C:\Sarita\Home28-10\RMIAsign\Prac-5>start rmiregistry

C:\Sarita\Home28-10\RMIAsign\Prac-5>start java -Djava.rmi.server.hostname=localhos
t -Djava.security.policy=java.policy DecodeServer

C:\Sarita\Home28-10\RMIAsign\Prac-5>java -Djava.security.policy=java.policy Decode
Client localhost

Enter String :
gujarat law society

The Encrypt String is : hvkbsbu mbx tpdjfuz


The Decrypt String is : gujarat10:30:31 law10:30:31 society10:30:31

C:\Sarita\Home28-10\RMIAsign\Prac-5>

*/