Component[] components = formationsPanel.getComponents();
    public Set getFormations() {		HashSet list = new HashSet();		Component[] components = formationsPanel.getComponents();				for(int i = 0; i < components.length; ++i) {		    if (components[i] instanceof JComboBox) {		        int index = ((JComboBox)components[i]).getSelectedIndex();		        if (index > 0) {			        Formation formation = new Formation();			        formation.setHeading(formationsName[index]);			        formation.setIdFormation(formationsId[index]);			        list.add(formation);		        }		    }		}				return list;    }