java jcombobox itemListener uniquement si la valeur a changé

comboBox.addItemListener(new ItemListener() {
	@Override
    public void itemStateChanged(ItemEvent e) {
      if(e.getStateChange() == ItemEvent.SELECTED) { // Check if the value got selected, ignore if it has been deselected
        //Do stuff
      }
    }
});
Zwazel