public void read() {
		if (db.exists()) {
			if (hasRead)
				return;
			try {
				FileReader f = new FileReader(db);
				BufferedReader in = new BufferedReader(f);
				String line;
				while ((line = in.readLine()) != null) {
					lines.add(line);
				}
			} catch (Exception ex) {
				ex.printStackTrace();
			}
			hasRead = true;
		} else {
			try {
				db.createNewFile();
			} catch (IOException e) {
				e.printStackTrace();
			}
			read();
		}
	}