public void sortPackages(){
        int packageNumber = 0;
        while (unsortedPackageList.size() > 0){
            for (int i = 0; i < unsortedPackageList.size(); i++){
                String hexInt = unsortedPackageList.get(i).substring(0);
                int readPackageNr = Integer.parseInt(hexInt, 16);
                if (packageNumber == readPackageNr){
                    sortedPackageList.add(unsortedPackageList.get(i));
                    unsortedPackageList.remove(i);
                }
            }
        }
    }