Finally clause :

• To ensure that some code runs whether or not an exception is thrown, use a finally clause. If no catch clause matches the exception, the exception is propagated after the finally clause runs:

•   try {
      breedMoreLlamas();
    } finally {
      // Always clean up, even if an exception is thrown.
      cleanLlamaStalls();
    }
  

• The finally clause runs after any matching catch clauses:

•   try {
      breedMoreLlamas();
    } catch (e) {
      print('Error: $e'); // Handle the exception first.
    } finally {
      cleanLlamaStalls(); // Then clean up.
    }