dcserver1.java

import java.io.*; 
import java.net.*; 
public class dcserver1
{
public static void main(String[] args) throws Exception
{
//create server socket
ServerSocket sersock1 = new ServerSocket(4000);
System.out.println("DeCentralized Server ready for communication");
//Make the server wait till a client accepts connection
Socket sock1 = sersock1.accept( );
//Sending to client
BufferedReader keyRead1 = new BufferedReader(new InputStreamReader(System.in));
OutputStream ostream1 = sock1.getOutputStream();
//To accept contents from client
PrintWriter pwrite1 = new PrintWriter(ostream1, true);
InputStream istream1 = sock1.getInputStream();
BufferedReader receiveRead1 = new BufferedReader(new InputStreamReader(istream1));
//Read contents from the client
String receiveMessage1, sendMessage1;
receiveMessage1 = receiveRead1.readLine();
pwrite1.println("Start Test \n 6+6=");
while(true)
{
if(receiveMessage1.equals("12"))
{
pwrite1.println("answer is correct");
}
else
{
pwrite1.println("answer is wrong");
} // end of if else loop
} // end of while loop
} // end of main
} // end of class