established connection between Client and Serveur, setting up basic interactions

ClientServeur/src/Server.java

@@ -13,6 +13,10 @@ public class Server {
 		new Thread(this::readMessages).start();
 	}
 
+	public int getPort() {
+		return this.socket.getLocalPort();
+	}
+
 	private void sendMessage(String message, InetAddress address, int port) throws IOException {
 		byte[] buffer = message.getBytes();
 		DatagramPacket packet = new DatagramPacket(buffer, buffer.length, address, port);