public void addinterval(String str) {
		if (str == null || str.equals("")) {
			return;
		}
		String[] interval = str.split(",");
		if (interval.length > 0) {
			for (String item : interval) {
				String[] mm = item.split("-");
				if (mm.length > 0) {
					lst.add(new Interval(Long.valueOf(mm[0]), Long.valueOf(mm[1]), lst));
				}
			}
		}
	}