private boolean correspondsToCheckBoxes(JCheckBox[] checkBoxes, Object object) {
if (object instanceof Calendar || object == null) {
SimpleDateFormat calendarFormatter = new SimpleDateFormat("dd.MM.yyyy");
String calendarStr =
(object != null) ? calendarFormatter.format(((Calendar) object).getTime()) : "";
for (JCheckBox checkBox : checkBoxes) {
if (checkBox.isSelected() && calendarStr.matches(checkBox.getActionCommand())) {
return true;
}
}
}
return false;
}