static void print() {

  {- -------------------------------------------
  (1) SystemDictionary::classes_do() と SystemDictionary::methods_do() でクラス情報を取得し, 結果を出力する.
      ---------------------------------------- -}

        SystemDictionary::classes_do(do_class);
        SystemDictionary::methods_do(do_method);
        tty->print_cr("Class statistics:");
        tty->print_cr("%d classes (%d bytes)", nclasses, class_size * oopSize);
        tty->print_cr("%d methods (%d bytes = %d base + %d debug info)", nmethods,
                      (method_size + debug_size) * oopSize, method_size * oopSize, debug_size * oopSize);
        tty->print_cr("%d methoddata (%d bytes)", nmethoddata, methoddata_size * oopSize);