private void displayMainMenu() {
		int userOption = -1;
		
		//Loop while the user as not selected quit
		while (userOption != 5) {
			
			displayMainMenuOptions();
			userOption = console.nextInt();
			
			System.out.println("<" + userOption + ">");
			
			//Run the selected function
			switch (userOption) {
				case 1 : constructNimGraph(); break;
				case 2 : labelNimGraph(); break;
				case 3 : playNim(); break;
				case 4 : updateMatchsticks(); break;
				//case 5 : displayRules(); break;
				case 5 : /*Do Nothing*/ break;
				default : System.out.println("Error: Input is out of bounds");
			}
		}
	}