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

public class Main {

	private static ServerSocket server;
	private Socket Con;
	private static ObjectOutputStream serveroutput;
	private static ObjectInputStream serverinput;
	private static Socket serverconnection;

	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());
			} catch (IOException e) {
				e.printStackTrace();
			}

		}


	}

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

	}

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

}