public static String get_Black_Card()
	{
		
		String card;
		Integer num_of_cards=black_cards.size();
		Random R = new Random();
		Integer card_location;
		
			card_location= R.nextInt(num_of_cards);
			card=black_cards.get(card_location);
			System.out.println(black_cards.get(card_location));
			black_cards.remove(black_cards.get(card_location));
		
			return card;

		
	}