private ArrayList<Class> loadClass(File[] classFiles) {
        ArrayList<Class> classArrayList = new ArrayList<>();
        String filename, directory;
        SimpleClassLoader simpleClassLoader = new SimpleClassLoader();

        for (File classFile : classFiles) {
            directory = classFile.getAbsolutePath().substring(0, fileName.length());
            filename = classFile.getAbsolutePath().substring(fileName.length() + 1, classFile.getAbsolutePath().lastIndexOf(".")).replace("\\", ".");
            classArrayList.add(simpleClassLoader.findClass(directory, filename));
        }
        return classArrayList;
    }