“Fehler in den Dart werfen” Code-Antworten

Dartausnahme

try {
  breedMoreLlamas();
} on OutOfLlamasException {			// A specific exception  
  buyMoreLlamas();
} on Exception catch (e) { 			// Anything else that is an exception
  print('Unknown exception: $e');
} catch (e) {						// No specified type, handles all
  print('Something really unknown: $e');
} finally {							// Always clean up, even if case of exception
  cleanLlamaStalls();
}

VasteMonde

Fehler in den Dart werfen

class CustomException implements Exception {
  String cause;
  CustomException(this.cause);
}

void main() {
  try {
    throwException();
  } on CustomException {
    print("custom exception has been obtained");
  }
}

throwException() {
  throw new CustomException('This is my first custom exception');
}

Developer101

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