Sample Dart Code

main.dart

void main() {
  final CardDeck newDeck = CardDeck.create();
  
  print(newDeck);
}



enum Suit {
  diamond,
  heart,
  spade,
  club,
}





class Card {
  Card(this.suit, this.rank);

  final Suit suit;
  final int rank;
  
  
  Map<Suit, String> suitSymbols = {
    Suit.diamond: '♦️',
    Suit.heart: '♥️',
    Suit.spade: '♠️',
    Suit.club: '♣️'
  };
  
  
  Map<int, String> rankNames = {
    11 : 'Jack',
    12 : 'Queen',
    13 : 'King',
    14 : 'Ace',
  };
  
  String get rankName => rankNames[rank] ?? '$rank';
  
  @override
  String toString() {
    return '$rankName of ${suitSymbols[suit]}';
  }
  
}

class CardDeck {
  CardDeck(this.cards);

  CardDeck.create() : cards = _create();

  final List<Card> cards;

  static List<Card> _create() {
    List<Card> newCards = <Card>[];
    Suit.values.forEach((Suit suit) {
      for (int rank = 2; rank <= 14; rank++) {
        newCards.add(Card(suit, rank));
      }
    });
    return newCards;
  }
  
  @override
  String toString() {
    return cards.map((Card card) => card).join(', ');
  }
}

class Scoreboard {
  Scoreboard(this.playerScore, this.computerScore);
  final int playerScore;
  final int computerScore;
}