public void checkUserCommand(String choise) {

		try{
			switch (choise.charAt(0)) {
			case 'n':
				runGame();
				gameState = GameState.EXIT;				
				break;
			case 'l':
				gameInstance.load(saveFile);
				break;
			case 's':
				gameInstance.save(saveFile);
				break;
			case 'q':
				gameState = GameState.EXIT;
				break;
			case 'r':
				gameInstance.redo();
				break;
			case 'u':
				gameInstance.undo();
				break;
			default:
				System.out.println("Invalid opearation given");
			}
		} catch(EmptyStackException e){
			System.out.println("No more way to go.");
		} catch(IOException e){
			System.out.println("No such file.");
		}

	}