TCP PROGRAM(Date and Time client server)

AIM

To create date and time client server using the TCP protocol

ALGORITHM

Server

• Declare the necessary arrays and variables.
• Set server port address using socket().
• Get the current message.
• Connect to the client.
• Stop the process.

Client

• Set the client machine address.
• Connect to the server.
• Read from the server the current message.
• Display the current message.
• Close the connection.

PROGRAM

DateClient:

import java.net.*;

import java.io.*;

public class DateClient

{

public static void main (String args[])

      {

               Socket soc;

DataInputStream dis;

               String sdate ;

PrintStreamps;

try

 {

InetAddressia=InetAddress.getLocalHost();

soc=new Socket(ia,8020);

dis=new DataInputStream(soc.getInputStream());

sdate=dis.readLine();

System.out.println("THE date in the serveris:"+sdate);

ps=new PrintStream(soc.getOutputStream());

ps.println(ia);

                      }

catch(IOException e)

                        {

System.out.println("THE EXCEPTION is :"+e);

  }

            }

}

DateServer:

import java.net.*;

import java.io.*;

importjava.util.*;

public class DateServer

{

public static void main(String args[])

      {

ServerSocketss;

Socket s;

PrintStreamps;

DataInputStream dis;

String inet;

try

              {

ss=new ServerSocket(8020);

while(true)

                  {

 s=ss.accept();

ps=new PrintStream(s.getOutputStream());

     Date d=new Date();

ps.println(d);

dis=new DataInputStream(s.getInputStream());

inet=dis.readLine();

System.out.println("THE CLIENT SYSTEM ADDRESSIS :"+inet);

ps.close();

                  }

  }

catch(IOException e)

                     {

System.out.println("The exception is :"+e);

 }

        }       

}

OUTPUT:

DateClient:

C:\Program Files\Java\jdk1.6.0\bin>javac dateclient.java

C:\Program Files\Java\jdk1.6.0\bin>java dateclient

THE date in the server is:Sat Jul 19 13:01:16 GMT+05:30 2008

C:\Program Files\Java\jdk1.6.0\bin>

DateServer:

C:\Program Files\Java\jdk1.6.0\bin>javac dateserver.java

C:\Program Files\Java\jdk1.6.0\bin>java dateserver

THE CLIENT SYSTEM ADDRESS IS :com17/192.168.21.17

RESULT: Thus the output has been executed and verified successfully for date and time client server