// Select, Clear, and Set Buttons
@Override
public void buttonActionPerformed(ActionEvent ae) {
if (ae.getSource() == selectButton) {
selectCheckboxes(true);
}
if (ae.getSource() == clearButton) {
selectCheckboxes(false);
}
if (ae.getSource() == setButton) {
isSetMode = !isSetMode; // toggle setMode
update();
}
check();
}
