Socket Programming using TCP/TP--------Create an application to find the factorial of given number using TCP/IP

Aim: - Create an application to find the factorial of given number using TCP/IP

Tools: - NetBeans IDE, jdk

Program:-

Server.java

package file_transfer;

import java.io.*;

import java.net.ServerSocket;

import java.net.Socket;

import sun.net.www.http.ChunkedOutputStream;

public class server {  

    public static void main(String[] args) throws Exception{

        ServerSocket ss1=new ServerSocket(777);

        Socket s1=ss1.accept();

        System.out.println("Server is Ready...");

        BufferedReader kb1=new BufferedReader(new InputStreamReader(s1.getInputStream()));

        String fname=kb1.readLine();

        System.out.println("Received Number From Client : " + fname);

        int num=Integer.parseInt(fname);

        System.out.println("Counting Factorial ...");

        int fact= factorial(num);       

        System.out.println("Send Factorial Value Of Number To Client ...");

        PrintStream dos1=new PrintStream(s1.getOutputStream());

        dos1.println(String.valueOf(fact));

        s1.close();

        ss1.close();

    }

    public static int factorial(int n){

        if(n==1)

            return 1;

        else

            return n*factorial(n-1);

    }

}

Client.java

package file_transfer;

import java.io.*;

import java.net.Socket;

public class client {   

    public static void main(String args[]) throws Exception{

        Socket s=new Socket("localhost", 777);

        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

        System.out.print("Enter Number To Find Factorial : ");

        String fname=br.readLine();

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

        dos.println(fname); 

        System.out.println("Send Number To Server...");

        BufferedReader kb=new BufferedReader(new InputStreamReader(s.getInputStream()));

        String sts=kb.readLine();

        System.out.println("Received Factorial Value From Server....");

        System.out.println("Factorial Of " + fname + " is : " + Integer.parseInt(sts));

        s.close();

    }   

}

Output:-