Deck.java

import java.util.*;

public class Deck
{
    private ArrayList<Card> deck = new ArrayList<Card>();

    public Deck()
    {
        for(Card.Suit s : Card.Suit.values())
        {
            for(Card.Type t : Card.Type.values())
            {
                this.deck.add(new Card(t, s));
            }
        }
    }

    public void shuffle()
    {
        long seed = System.nanoTime();
        Collections.shuffle(this.deck, new Random(seed));
    }

    public void shuffle(ArrayList<Card> hand)
    {
        for(Card c : hand)
        {
            this.deck.add(c);
        }

        this.shuffle();
    }

    public int size()
    {
        return this.deck.size();
    }

    public ArrayList<Card> draw(int number)
    {
        ArrayList<Card> cards = new ArrayList<Card>();

        for(int i = 0; i < number; i++)
        {
            cards.add(this.deck.remove(0));
        }

        return cards;
    }

    public int cardCount()
    {
        return this.deck.size();
    }
}