The Deck Pile

class DeckPile extends CardPile {
	DeckPile (int x, int y) {
			// first initialize parent
		super(x, y);
			// then create the new deck
			// first put them into a local pile
		CardPile pileOne = new CardPile(0, 0);
		CardPile pileTwo = new CardPile(0, 0);
		int count = 0;
		for (int i = 0; i < 4; i++)
			for (int j = 0; j <= 12; j++) {
				pileOne.addCard(new Card(i, j));
				count++;
				}
			// then pull them out randomly
		for (; count > 0; count--) {
			int limit = ((int)(Math.random() * 1000)) % count;
				// move down to a random location
			for (int i = 0; i < limit; i++)
				pileTwo.addCard(pileOne.pop());
				// then add the card found there
			addCard(pileOne.pop());
				// then put the decks back together
			while (! pileTwo.empty())
				pileOne.addCard(pileTwo.pop());
		} 
	}

	public void select(int tx, int ty) {
		if (empty()) 
			return;
		Solitare.discardPile.addCard(pop());
	} 
}

Intro OOP, Chapter 8, Slide 18