#1 codelabs --> Intro to Dart for Java devs!

bicycle.dart

class Bicycle {
  int cadence;
  int _speed = 0; // makes it private
  // private so explicit -- getter
  int get speed => _speed;
  // implicit getters and setters for all public instance variables
  int gear;

  Bicycle(this.cadence, this.gear);

  void applyBrake(int decrement) {
    _speed -= decrement;
  }

  void speedUp(int increment) {
    _speed += increment;
  }

  //${expression}
  @override
  String toString() => 'Bicycle: $_speed mph';
}

// if cmd line arg required
// void main(List<String> args) {}

void main() {
//   var bike = new Bicycle(2, 1);
  var bike = Bicycle(2, 1);
  print(bike);
}