public static void userInterface() {
		System.out.println("Sam Melnik UIN:652620936");
		System.out.println("Brian Herman UIN:675462479");
		instructions();
		String input = ""; // user input
		gameBoard x = new gameBoard();// creates the board
		Scanner user_input = new Scanner(System.in);
		int size = 8;
		while (true) {
			input = user_input.next();// get user input
			if (input.equalsIgnoreCase("q")) {
				System.exit(0);
			} else if (input.equalsIgnoreCase("a")) {
				AStarDemo(x);// run search
			} else if (input.equalsIgnoreCase("n")) {
				x = new gameBoard(size);
				System.out.println("new board generated");
			} else if (input.equalsIgnoreCase("d")) {
				System.out.println("Enter a value:");
				size = user_input.nextInt();
				x = new gameBoard(size);
			} else if (input.equalsIgnoreCase("p")) {
				x.printBoard();
			} else if (input.equalsIgnoreCase("F")) {
				DFS(x);
			} else if (input.equalsIgnoreCase("O")) {
				x.oneforth = true;
				System.out.println("One fourth on");
			} else if (input.equalsIgnoreCase("K")) {
				x.oneforth = false;
				System.out.println("three eights on");
			}
		}
	}