aa.java

public static String getOpenedStatus(List<List<Short>> openingTimes){
		String result = "";

		// TODO: je to koser podminka?
		if(openingTimes.size() == 7){
			Calendar cal = Calendar.getInstance();
			int day = cal.get(Calendar.DAY_OF_WEEK) - 1; // takze den nula bude -1, nebo to zacina jednickou? nedele je v cestine 6, mozna bych mel spis pouzit anglicke usporadani.. chce to na to mrknout

			Short open = openingTimes.get(day).get(0);
			Short close = openingTimes.get(day).get(1);

			int hour = (cal.get(Calendar.HOUR_OF_DAY) * 60) + cal.get(Calendar.MINUTE); // toto by se melo spis jmenovat current_minute?

			// pokud je otevreno, mrknem, jak dlouho jeste bude
			if(hour >= open && hour <= close){
				int howLong = close - hour;  // doba do zaviracky v minutach
				if(howLong < 60) // dej tu prosim 120, kdz vyjdes z domu a prijdes tam 30 minut pred zavirackou, asi te to moc nepotesi
					result = "Otevreno jeste " + howLong + " minut.";
				else
					result = "Otevreno.";
			}else{ // pokud je zavreno, tak to stejne :-)
				int howLong = hour - open;  // v pripade, ze je 0:05 tak tohle ukaze zaporne cislo a pak se nam pristi podminka podela :)
				
				if(howLong < 60) // znova pouzil bych 120 a dal sem "howLong > 0 && howLong < 60"
					result = "Zavreno jeste " + howLong + " minut.";
				else
					result = "Zavreno.";
			}
		}

		return result;
	}