public void Interface() {

		int buffersize = 1024;
		char stdInbuffer[] = new char[buffersize];
		// makes reading from keyboard/shell ready
		BufferedReader stdIn = new BufferedReader(new InputStreamReader(
											System.in)); 

		// 1. read from keyboard
		// 2. send to Server
		// 3. catch server answer
		// 4. start by 1
		int stdInCounter;

		System.out.println("********* welcome to UserInterface **********");

		try {
			while (true) {
				System.out.println("please insert a command: (e.g. HELP) ");
				// 1.1 read from Keyboard/shell into a buffer

				stdInCounter = stdIn.read(stdInbuffer);

				// 1.2 convert char to string
				String stdInString = new String(stdInbuffer, 0, stdInCounter);

				if (inputRFCHandling(stdInString) == true) {
					System.out.println("command transfered");

				} else {
					msg.output().println(stdInString);
				}
				/*
				 * closing userInterface
				 */
				if (inputQuit(stdInString) == true) {
					//FtpServerAnswerMessages.readInputStream();
					break;
				}

				//FtpServerAnswerMessages.readInputStream();

			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

	}