public synchronized void run(){
		try {
			InputStream inputStream = cashSocket.getInputStream();
			ObjectInputStream objectInputStream = new ObjectInputStream(
					inputStream);

			OutputStream outputStream = cashSocket.getOutputStream();
			ObjectOutputStream objectOutputStream = new ObjectOutputStream(
					outputStream);

			String order = (String) objectInputStream.readObject();
			switch (order) {
			case "GET_DATE":
				objectOutputStream.writeObject(new Date());
				break;
			default:
				break;
			}
			cashSocket.close();
		} catch (Exception e) {
			e.printStackTrace();
		}
	}