/** * Verifies that the values entered are acceptable. * * @return true if the values entered are acceptable. */ private boolean checkInput() { if (tf1.getString().trim().equals("")) { return false; } data1 = pin1.transform(tf1.getString()); if (data1 == null) { // PIN can't be formatted, pass empty PIN to update counter data1 = new byte[8]; } if (pin2 != null) { data2 = pin2.transform(tf2.getString()); if (data2 == null) { tf2.setString(""); return false; } } else { data2 = null; } return true; }