public void actionPerformed(ActionEvent ae) {
   try {
     String sbuildQuantity = buildQuantity.getText();
     System.out.println(sbuildQuantity);
     int buildNumber = Integer.parseInt(sbuildQuantity);
     if (buildNumber <= 0) {
       System.out.println("Invalid kit build amount");
     } else {
       Kits selectedKit = (Kits) kitList.getSelectedValue();
       selectedKit.setBuildNumber(buildNumber);
       buildInfo.add(selectedKit);
       parent.syncBuildInfo(buildInfo);
     }
   } catch (Exception e) {
     System.out.println("Invalid kit build amount");
   }
 }