public void checkSaldo() { Saldo saldoDisplay = new Saldo(saldo); //saldoDisplay.Show(); //saldoDisplay.Refresh(); while (true) { String input = arduino.getString(); if (input.Contains("*")) { saldoDisplay.Hide(); pin(); break; } else if (input.Contains("#")) { DankU goAway = new DankU(); endOfSession = true; saldoDisplay.Close(); break; } } }