Prime Number | TCP Protocol | Data Communication and Networking

 Client

import java.io.*;

import java.net.*;

class Q3_Client

{

public static void main(String ar[]) throws Exception

{

Socket s=new Socket("localhost",12345);

PrintWriter p=new PrintWriter(s.getOutputStream());

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

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

System.out.println("How many numbers Enter ? ");

int num=Integer.parseInt(ink.readLine());

p.println(num);

p.flush();

System.out.println("Enter "+num+" numbers  :");

String sarr[]=new String[num];

for(int i=0;i<num;i++)

{

System.out.print("no. "+i+"=");

sarr[i]=ink.readLine();

p.println(sarr[i]);

p.flush();

}

String res;

System.out.println("\nPrime Number::\n");

while((res=in.readLine())!=null)

{

System.out.print(res);

}

s.close();

}

}

Server

import java.io.*;

import java.net.*;

class Q3_Server

{

public static void main(String ar[]) throws Exception

{

ServerSocket s1=new ServerSocket(12345);

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

Socket s=s1.accept();

PrintWriter p=new PrintWriter(s.getOutputStream());

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

String num=in.readLine();

int n=Integer.parseInt(num);

System.out.println("Client want to check "+n+" of Prime numbers");

String sarr[]=new String[n];

int arr[]=new int[n];

int c;

System.out.println("received numbers::\n");

for(int i=0;i<n;i++)

{

sarr[i]=in.readLine();

arr[i]=Integer.parseInt(sarr[i]);

System.out.println("no. "+i+"="+arr[i]);

}

        int a[]=new int[n];

        int cnt=0;

for (c = 0; c <  n ; c++)

{

            if((arr[c]%2)!=0 || arr[c]==2){

                a[cnt]=arr[c];

                cnt++;

}

}

System.out.println("\nlist of Prime numbers :");

String sendarr=new String();

if(cnt==0){

sendarr="Here not any prime number....";

}

else{

for (c = 0; c <cnt; c++)

sendarr+=" ,"+a[c];

}

System.out.println(sendarr);

p.println(sendarr);

p.flush();

s.close();

        s1.close();

}

}

Output

UDP Protocol 

Syntax | System Software

Comment your views on this Article :)

Thank you for visiting my blog :)