public void run(){
		isRunning = true;
		while(isRunning){
			displayMenu();
			int menuOrder = readMenu();
			switch(Menu.values()[menuOrder]){
			case LOGIN:
				login();
				break;
			case SHOW_ALL_USER:
				showAllUser();
				break;
			case LOGOUT:
				logout();
				break;
			case EXIT:
				exit();
				break;
			default:
			}
			
		}
	}