package chat;

import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;

import javax.swing.JOptionPane;

public class Server {

	public static void main(String[] args) {		
		int port = 0;

		while(port < 1024 || port > 49151) {
			String response = JOptionPane.showInputDialog("Enter server listening port: ");
			try {
				port = Integer.parseInt(response);
			}
			catch(NumberFormatException e) {				
			}

			if(port < 1024 || port > 49151)
				JOptionPane.showMessageDialog(null, "Invalid port number entered.", "Invalid Port!", JOptionPane.ERROR_MESSAGE);
		}

		try {
			ServerSocket serverSocket = new ServerSocket(port);
			Socket socket = serverSocket.accept();			
			serverSocket.close();
			new Communicator(socket);
		}
		catch (IOException e) {
		}
	}
}