VendingMachine

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package vendingmachine;

import java.net.URL;
import java.util.ResourceBundle;
import javafx.event.ActionEvent;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.*;


/**
 *
 * @author Compsci
 */
public class FXMLDocumentController implements Initializable {

    @FXML
    private Label label;
    @FXML
    private RadioButton cola;
    @FXML
    private RadioButton grape;
    @FXML
    private RadioButton root;
    @FXML
    private RadioButton water;
    @FXML
    private Label change;
    @FXML
    private Label message;
    @FXML
    private TextField moneyInput;
    @FXML
    private Label colaStockLabel;
    @FXML
    private Label grapeStockLabel;
    @FXML
    private Label rootStockLabel;
    @FXML
    private Label waterStockLabel;


    private int colaStock = 20;
    private int grapeStock = 20;
    private int rootStock = 20;
    private int waterStock = 20;
    private final double COST = 0.75;




    @FXML
    private void handleButtonAction(ActionEvent event) {
        System.out.println("You clicked me!");
        checkInput();
        buyDrink();
    }

    private void checkInput() {
        try {
            if (Double.parseDouble(moneyInput.getText()) < 0.75) {
                message.setText("Please enter a number greater than 0.75");
                change.setText("0.00");

            }
            else if (colaStock < 1 || grapeStock < 1 || rootStock < 1 || waterStock < 1){
                message.setText("Drink is out of stock!");
                change.setText("0.00");

            }
        }
        catch (Exception e) {
            message.setText("Please enter a number greater than 0.75");
            change.setText("0.00");
        }
    }

    private void buyDrink() {
        try {
            if (Double.parseDouble(moneyInput.getText()) > 0.75) {
                if (cola.isSelected() && colaStock > 0) {
                    colaStock--;
                    colaStockLabel.setText(Integer.toString(colaStock));
                    giveChange();
                }
                if (grape.isSelected() && grapeStock > 0) {
                    grapeStock--;
                    grapeStockLabel.setText(Integer.toString(grapeStock));
                    giveChange();
                }
                if (root.isSelected() && rootStock > 0) {
                    rootStock--;
                    rootStockLabel.setText(Integer.toString(rootStock));
                    giveChange();
                }
                if (water.isSelected() && waterStock > 0) {
                    waterStock--;
                    waterStockLabel.setText(Integer.toString(waterStock));
                    giveChange();
                }
            }
        }
        catch (Exception e) {

        }
    }

    private void giveChange() {
        if (Double.parseDouble(moneyInput.getText()) > 0.75) {
            double returnChange = Double.parseDouble(moneyInput.getText()) - 0.75;
            change.setText(Double.toString(returnChange));
            message.setText("");
        }
    }

    @Override
    public void initialize(URL url, ResourceBundle rb) {
        // TODO
    }

}