[Dart article] Async code exceptions 1

dart_async_exceptions1.dart

try {
    Future.delayed(Duration(seconds: 1), () {
      final _ = 100 ~/ 0;
    });
    print('Everything is fine!');
  } on IntegerDivisionByZeroException {
    print('Cant divide to zero');
  } finally {
    print('Clean-up done');
  }