public boolean addPasswordField(String fieldName, String fieldPrettyName, int size) { if (get(fieldName) == null) { PasswordClass text_class = new PasswordClass(); text_class.setName(fieldName); text_class.setPrettyName(fieldPrettyName); text_class.setSize(size); text_class.setObject(this); put(fieldName, text_class); return true; } return false; }