private void getPlattform(JComboBox cb) {

    ArrayList<String> plattform;
    plattform = new ArrayList<String>();
    try {
    plattform = database.fetchColumn("select Benamning from plattform");
    } catch (InfException exc) {
    JOptionPane.showMessageDialog(null, exc.getMessage());
    }
    for (String plattformar : plattform) {

    cb.addItem(plattformar);
    }