import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.ArrayList;

public class Main {

	private static ServerSocket server;
	private Socket Con;
	private static ObjectOutputStream serveroutput;
	private static ObjectInputStream serverinput;
	private static Socket serverconnection;
	private ArrayList<Socket> cons;

	public Main() throws IOException {

		try {
			this.server = new ServerSocket(2021);
			System.out.println("server gestartet");
			waitforcon();

		} catch (IOException e) {
			System.out.println("Server startup Error");
			e.printStackTrace();
		}


	}


	public void waitforcon() throws IOException {

		while(true) {

			try {
				this.Con = server.accept();
				serversetupStreams();
				System.out.println("client verbunden" + Con.getInetAddress());
				this.cons.add(Con);
			} catch (IOException e) {
				e.printStackTrace();
			}

		}


	}

	private void serversetupStreams() throws IOException{
		System.out.println("baue brücken");
		serveroutput = new ObjectOutputStream(Con.getOutputStream());
		serveroutput.flush();
		serverinput = new ObjectInputStream(Con.getInputStream());

	}

	private void waitforping() throws ClassNotFoundException, IOException {


		while(true) {

		String[] cmd = (String[]) serverinput.readObject();
		verwerten(cmd);
		/*char[] cmd = s.toCharArray();
		int countpart = 0;
		for(int i = cmd.length; i > 0; i++) {

			if(cmd[i] == '.') {
				countpart++;
				int vor = i;

				for(int z = vor; z >0;z--) {
					char[] be1 = new char[z];
					be1[z] = cmd[z];
				}
			}

		}*/

		}

	}

	public void verwerten(String[] a) {



	}

	public static void main(String[] args) throws IOException {
        new Main();
    }

}