@Override
	public void processCommand(String command, Scanner sc) {
		switch (command) {
		case "-help": {
			getHelp();
			break;
		}
		case "-expatt": {
			processExpAtt(sc);
			break;
		}
		case "-expst": {
			processExpSt(sc);
			break;
		}
		case "-cc": {
			createCourse(sc);
			break;
		}
		case "-cs": {
			createSession(sc);
			break;
		}
		case "-astc": {
			assignStudentToCourse(sc);
			break;
		}
		case "-setmark":
		{
			setMarks(sc);
			break;
		}
		default:
			System.out.println("Invalid command");
			break;
		}
	}