public static int getAbsoluteValue(int i, NumberSign sign) {
		if(i == 0 || i == -0) {
			return 0;
		}
		if(sign.equals(NumberSign.NEGATIVE)){
			int r = (i < 0 ? i : -i);
			return r;
		} else if (sign.equals(NumberSign.POSITIVE)) {
			int r = (i < 0 ? -i : i);
			return r;
		} else {
			return 0;
		}
	}