exceptions-error-example.dart

// jeotario's academy

void exceptional() {
  throw Exception('hi');
}

void hello() {
  throw 'Hello Friend';
}

void err() {
  throw Error();
}

void unimplemented() {
  throw UnimplementedError();
}

void myException() {
  throw MyException(2, 'hi exception');
}

class MyException implements Exception {
  int line;
  String msg;
  MyException(this.line, this.msg);
}

void main() {
  try {
    myException();
  } on MyException catch (e) {
    print('line ${e.line} msg ${e.msg}');
    rethrow;
  } catch (e) {
    print('err');
  }
}