I have a InventoryManagement java class that will not run even after I create the Dispenser and Product class can anyone tell me what I am I missing or doing wrong. Thank you.

packageFinal_Project;
	import java.util.ArrayList;
	import javafx.animation.PathTransition;
	import javafx.collections.FXCollections;
	import javafx.collections.ObservableList;
	import javafx.scene.Group;
	import javafx.scene.Scene;
	import javafx.scene.control.Alert.AlertType;
	import javafx.scene.image.Image;
	import javafx.scene.image.ImageView;
	import javafx.scene.paint.Color;
	import javafx.scene.shape.MoveTo;
	import javafx.scene.shape.Path;
	import javafx.scene.shape.VLineTo;
	import javafx.stage.Modality;
	import javafx.stage.Stage;
	import javafx.util.Duration;
	public class InventoryManagement extends Product {
	protected ObservableList basketObservableList;
	protected ArrayList basketListItems = new ArrayList();
	InventoryManagement() {
	}
	/**
	* sellItem()
	*
	* Reduce the number of items for a specific product based on a sale
	*
	* @param prod
	* @param qty
	*/
	public boolean addToBasket(Product prod, int qty) {
	String errorMsg = "";
	// Make sure enough products are available
	if (prod.getTemporaryQuantity() <= 0) {
	if (prod.getTemporaryQuantity() == 0)
	errorMsg = "Sorry, there are no " + prod.getName() + " left. Please try another item.";
	else
	errorMsg = "Sorry, only " + prod.getQuantity() + " left of " + prod.getName() + ". Please try another item.";
	sendAlert(AlertType.ERROR, "Item Unavailable", "Item Unavailable", errorMsg);
	return false;
	} else {
	prod.setTemporaryQuantity(prod.getTemporaryQuantity() - qty);
	// Add to the basket
	basketListItems.add( prod.getName() + " - " + prod.getProductId() + " - $" + prod.getPrice() );
	updateBasketObsList();
	// Create animation for adding the item to the basket
	Stage stage = new Stage();
	stage.initModality(Modality.APPLICATION_MODAL);
	stage.setTitle("Add to Basket");
	stage.setResizable(false);
	Group root = new Group();
	// Get image for basket
	ImageView basket = new ImageView(new Image("http://simpleicon.com/wp-content/uploads/basket.png"));
	basket.relocate(10, 300);
	basket.setFitHeight(90);
	basket.setFitWidth(100);
	// Create image for product
	ImageView prodImage = new ImageView();
	// Set image size and url based of prod.getname()
	switch (prod.getName()) {
	case "Doritos": prodImage = new ImageView(new Image("http://getbetterwellness.com/wp-content/uploads/2013/09/doritos.jpg"));
	prodImage.setFitHeight(80);
	prodImage.setFitWidth(60);
	break;
	case "Cheetos": prodImage = new ImageView(new Image("http://www.scoopnheap.com/wp-content/uploads/2013/02/Cheetos.png"));
	prodImage.setFitHeight(80);
	prodImage.setFitWidth(60);
	break;
	case "Corn Chips": prodImage = new ImageView(new Image("https://images.jet.com/md5/e8749580772b358818dd6544f8828c43"));
	prodImage.setFitHeight(80);
	prodImage.setFitWidth(80);
	break;
	case "Flutes": prodImage = new ImageView(new Image("http://img1.21food.com/img/cj/2014/10/9/1412788858789310.jpg"));
	prodImage.setFitHeight(80);
	prodImage.setFitWidth(80);
	break;
	case "Reeses": prodImage = new ImageView(new Image("https://upload.wikimedia.org/wikipedia/en/9/97/Reese's-PB-Cups-Wrapper-Small.png"));
	prodImage.setRotate(90);
	prodImage.setFitHeight(40);
	prodImage.setFitWidth(80);
	break;
	case "Trident": prodImage = new ImageView(new Image("http://badwordslab.com/wp-content/uploads/2014/08/Trident-460x295.png"));
	prodImage.setFitHeight(40);
	prodImage.setFitWidth(80);
	break;
	case "Hubba Bubba": prodImage = new ImageView(new Image("http://www.sanza.co.uk/pics/8259.jpg"));
	prodImage.setFitHeight(40);
	prodImage.setFitWidth(80);
	break;
	case "Big League Chew": prodImage = new ImageView(new Image("https://www.studentnewsdaily.com/wp-content/uploads/2015/05/Big-League-Chew.png"));
	prodImage.setFitHeight(40);
	prodImage.setFitWidth(80);
	break;
	case "Coke": prodImage = new ImageView(new Image("http://www.magictricks.com/assets/images/trickspix/airbornecokecan2.jpg"));
	prodImage.setFitHeight(60);
	prodImage.setFitWidth(60);
	break;
	case "Pepsi": prodImage = new ImageView(new Image("http://i.bnet.com/blogs/new-pepsi-can-logo-bnet-april-2011.jpg"));
	prodImage.setFitHeight(80);
	prodImage.setFitWidth(60);
	break;
	case "Sprite": prodImage = new ImageView(new Image("http://www.caffeineinformer.com/wp-content/caffeine/sprite.jpg"));
	prodImage.setFitHeight(80);
	prodImage.setFitWidth(40);
	break;
	case "Root Beer": prodImage = new ImageView(new Image("http://www.caffeineinformer.com/wp-content/caffeine/aw-root-beer.jpg"));
	prodImage.setFitHeight(80);
	prodImage.setFitWidth(40);
	break;
	case "Green Tea": prodImage = new ImageView(new Image("https://s-media-cache-ak0.pinimg.com/236x/76/55/d9/7655d918c9d08c66beecc8e47146da2a.jpg"));
	prodImage.setFitHeight(90);
	prodImage.setFitWidth(40);
	break;
	case "Snickers": prodImage = new ImageView(new Image("https://upload.wikimedia.org/wikipedia/en/thumb/3/3c/Snickers_wrapped.png/240px-Snickers_wrapped.png"));
	prodImage.setFitHeight(40);
	prodImage.setFitWidth(80);
	break;
	case "Kit-Kat": prodImage = new ImageView(new Image("https://upload.wikimedia.org/wikipedia/en/5/5d/Kit-Kat-Wrapper-Small.jpg"));
	prodImage.setFitHeight(40);
	prodImage.setFitWidth(80);
	break;
	case "Caramello": prodImage = new ImageView(new Image("http://cdn.foodbeast.com/content/uploads/2016/06/caramello-chocolate-bar.jpg"));
	prodImage.setFitHeight(40);
	prodImage.setFitWidth(80);
	break;
	}
	prodImage.relocate(0, 0);
	root.getChildren().addAll(prodImage, basket);
	// Set animation path
	Path path = new Path();
	path.getElements().addAll(new MoveTo(60, 50), new VLineTo(340));
	path.setFill(null);
	path.setStroke(Color.TRANSPARENT);
	path.setStrokeWidth(2);
	root.getChildren().add(path);
	// Set and show new scene
	Scene scene = new Scene(root, 100, 400);
	stage.setScene(scene);
	stage.show();
	//Animate product going into basket
	PathTransition pt = new PathTransition(Duration.millis(1000), path, prodImage);
	pt.play();
	pt.setAutoReverse(false);
	pt.play();
	/////
	return true;
	}
	}
	/**
	* removeFromBasket()
	*
	* Performs tasks of removing items from the users basket
	*
	* @param mainDisp
	* @param prodId
	* @param itemInList
	*/
	public void removeFromBasket(Dispenser mainDisp, int prodId, int itemInList) {
	// Remove from Observable List
	basketObservableList.remove(itemInList);
	// Remove from ArrayList
	for (int j = 0; j < basketListItems.size(); j++) {
	String[] itemToRemove = basketListItems.get(j).split(" - ");
	if (Integer.parseInt(itemToRemove[1]) == prodId) {
	basketListItems.remove(j);
	}
	}
	// Remove from product temporary count
	for (int i = 0; i < mainDisp.getProducts().size(); i++) {
	Product theProd = mainDisp.getProducts().get(i);
	// If selected prodId matches, update the quantities
	if (theProd.getProductId() == prodId) {
	theProd.setTemporaryQuantity( theProd.getTemporaryQuantity() + 1 );
	}
	}
	}
	/**
	* getBasketTotal()
	*
	* Returns Double value to show the total price of all items in basket
	*
	* @return
	*/
	public double getBasketTotal() {
	double tempTotal = 0.00;
	for (int k = 0; k < basketListItems.size(); k++) {
	String[] itemToRemove = basketListItems.get(k).split(" - ");
	tempTotal += Float.parseFloat(itemToRemove[2].replace("$", ""));
	}
	return Math.round(tempTotal * 100D) / 100D;
	}
	/**
	* updateBasketObsList()
	*
	* Updates the Observable list of items in the basket
	*/
	private void updateBasketObsList() {
	String[] tempListItems = new String[basketListItems.size()];
	for (int i = 0; i < basketListItems.size(); i++) {
	tempListItems[i] = basketListItems.get(i);
	}
	basketObservableList = FXCollections.observableArrayList(tempListItems);
	}
	// Getters
	public ObservableList getBasketObsList() {
	return basketObservableList;
	}
	}