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Practical No 16

1. The document describes a program written by Ayush Maroti Wadje for class CO4I to implement a chat server and client using sockets. 2. The program includes code for both the server side and client side. The server side code creates a server socket and accepts connections from clients. It then reads and writes messages to connected clients. 3. The client side code connects to the server socket and reads/writes messages in a loop, implementing a simple chat client. It also includes code for a prime number checking server that takes a number from the client and checks if it is prime or not.

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1K views6 pages

Practical No 16

1. The document describes a program written by Ayush Maroti Wadje for class CO4I to implement a chat server and client using sockets. 2. The program includes code for both the server side and client side. The server side code creates a server socket and accepts connections from clients. It then reads and writes messages to connected clients. 3. The client side code connects to the server socket and reads/writes messages in a loop, implementing a simple chat client. It also includes code for a prime number checking server that takes a number from the client and checks if it is prime or not.

Uploaded by

nstrnsdtn
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Name:-Ayush Maroti Wadje Class:-CO4I

Roll No:-76

Practical No 16 :- Writer a Program to implement chat


Server using Server Socket and Socket Class

Q1. Write a program using socket and server socket to create chat application.

Server Side:-
import java.net.ServerSocket;

import java.net.Socket;

import java.io.BufferedReader;

import java.io.IOException;

import java.io.OutputStream;

import java.io.PrintStream;

import java.io.InputStreamReader;

public class ServerSide

public static void main(String[] args) throws IOException

ServerSocket s = new ServerSocket(2019);

System.out.println("Server Started, waiting for client");

Socket s1 = s.accept()

// Client Send

BufferedReader br = new BufferedReader(

new InputStreamReader(s1.getInputStream())

);

OutputStream out = s1.getOutputStream();

PrintStream ps = new PrintStream(out);

BufferedReader br1 = new BufferedReader(


new InputStreamReader(System.in)

);

do{

String res = br.readLine()

System.out.println("Client Send: "+res)

System.out.print("Server: ");

String msg = br1.readLine();

System.out.print("\n\n");

ps.println(msg);

while(true);

ClientSide:-
import java.net.Socket;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintStream;

public class ClientSice


{
public static void main(String[] args) throws IOException {
Socket s = new Socket("localhost",2019);

System.out.println("Client Started, waiting for server response..");

BufferedReader br = new BufferedReader(


new InputStreamReader(System.in)
);
OutputStream os = s.getOutputStream();

BufferedReader br1 = new BufferedReader(


new InputStreamReader(s.getInputStream())
);
PrintStream ps = new PrintStream(os);
do{
System.out.print("Client: ");
String msg = br.readLine();
ps.println(msg);

String res = br1.readLine();

System.out.println("Server Send:"+res+"\n\n");
}
while(true);

}
}
Output:-
Q2. Write a program to develop prime number server (client will send any number to a
server, Server will send a response to the number is prime or not.)
Ans:-
Server Side:-
import java.net.*;
import java.io.*;
import java.nio.Buffer;

public class Pra_16 {


public static void main(String[] args) {
try {
Socket s= new Socket("localhost",1000);
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter no:");
int n = Integer.parseInt(br.readLine());
OutputStream o= s.getOutputStream();
PrintStream ps =new PrintStream(o);
ps.println(n);

BufferedReader br1= new BufferedReader(new


InputStreamReader(s.getInputStream()));
int c= br1.read();
while(c != -1){
System.out.print((char)c);
c= br1.read();
}

} catch (Exception e){

}
}

Client :-
import java.net.*;
import java.io.*;
import java.nio.Buffer;

public class Pra16_main {


public static void main(String[] args) {
try {
ServerSocket ss = new ServerSocket(1000);
System.out.println("Searching");
Socket s = ss.accept();
BufferedReader br = new BufferedReader(new
InputStreamReader(s.getInputStream()));
int n = Integer.parseInt(br.readLine());
OutputStream o = s.getOutputStream();
PrintStream ps = new PrintStream(o);
System.out.println("Checking");
int num, i, count = 0;

for (i = 2; i < n; i++) {


if (n % i == 0) {
count++;
break;
}
}

if (count == 0)
ps.println("\nIt is a Prime Number.");
else
ps.println("\nIt is not a Prime Number.");
} catch (Exception e) {

}
}
Output:-

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