private static void test(Validator val, String[] dataset)
      throws IOException, ClassNotFoundException {
    Benchmark mbm = new Benchmark();
    mbm.start();

    int truecount = 0;
    for (int i = 0; i < REPEATS; i++) {
      truecount = 0;
      for (String s : dataset) {
        if (val.checkInteger(s)) truecount++;
      }
    }

    mbm.stop();
    System.out.printf("%d\t%s", truecount, mbm);
  }