ServerDemo

import java.io.IOException;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Scanner;

public class ServerDemo {

    public static void main(String[] args) throws IOException {
        String msg;
        System.out.println("Server is waiting for request....");
        ServerSocket server = new ServerSocket(1211);
        Socket socket = server.accept();
        Scanner scan = new Scanner(socket.getInputStream());
        PrintStream printout = new PrintStream(socket.getOutputStream());
        msg = scan.nextLine();
        if (msg.equalsIgnoreCase("uktc")) {
            printout.println("Server response: Bravo UKTC is right answer!");
        } else {
            printout.println("Server response: Sorry! " + msg + "  is wrong answer!");
        }
        System.out.println("Responsed!");
        server.close();// with this line server would be stoped;
        scan.close();
    }
}