Solitaire, Deck

import java.util.Arrays;
import java.util.Random;

public class Deck {
    private static Random rnd = new Random();

    Card[] cards;
    int start;

    public Deck() {
        int cardsCount = Card.CARD_TYPE.length() * Card.CARD_VALUE.length;
        cards = new Card[cardsCount];

        for (int t = 0; t < Card.CARD_TYPE.length(); t++) {
            char type = Card.CARD_TYPE.charAt(t);
            for (int v = 0; v < Card.CARD_VALUE.length; v++) {
                cards[v + 13 * t] = new Card(type, v + 1);
            }
        }

        for (int i = 0; i < cardsCount; i++) {
            int c1, c2;

            c1 = rnd.nextInt(cardsCount);
            do {
                c2 = rnd.nextInt(cardsCount);
            } while (c1 == c2);

            Card temp = cards[c1];
            cards[c1] = cards[c2];
            cards[c2] = temp;
        }

        start = 0;
    }

    public Card[] getCards(int count) {
        int last = start + count;
        Card[] res = Arrays.copyOfRange(cards, start, last);
        start = last;

        return res;
    }

    public int getCount() {
        return cards.length - start;
    }
}