public ArrayList<ArrayList<Card>> holeCardsCombinations() {
		ArrayList<ArrayList<Card>> combinations = new ArrayList<ArrayList<Card>>();
		for (int i = 0; i < cards.size(); i++) { 
			for (int j = i + 1; j < cards.size(); j++) {
				ArrayList<Card> combination = new ArrayList<Card>();
				combination.add(cards.get(i));
				combination.add(cards.get(j));
				combinations.add(combination);
			}
		}
		return combinations;
	}