public Card(String suit, int point) {
		if (point < 2 || point > 14) {
			System.out.println("Error when creating Card. Invalid point!");
			return;
		}
		
		if (!suit.equals("S") && !suit.equals("H") && !suit.equals("C") && !suit.equals("D")) {
			System.out.println("Error when creating Card. Invalid suit!");
			return;
		}
		
		this.suit = new String(suit);
		this.point = point;
	}