Question

In Java

Write a JavaFX application that allows the user to pick a set of pizza toppings using a set of check boxes. Assuming each topping cost 50 cents, and a plain pizza costs $10, display the cost of the pizza.Us an Hbox

thank you!

Answer 1

Code

import javafx.application.Application;
import javafx.collections.ObservableList;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.CheckBox;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.stage.Stage;
import javafx.scene.layout.HBox;;

public class PizzaOrder extends Application {
  
@Override
public void start(Stage stage)
{
  
  
CheckBox chkPepperoni = new CheckBox("Pepperoni");
CheckBox chkCheez = new CheckBox("Extra Cheez");
CheckBox chkBacon = new CheckBox("Bacon");
CheckBox chkBlackOlives = new CheckBox("Black olives");
Label price = new Label("Total Cost: ");
//Creating the stop button
Button calculate = new Button("Place Order");

//Instantiating the HBox class
HBox hbox = new HBox();
  
//Setting the space between the nodes of a HBox pane
hbox.setSpacing(10);
  
//Setting the margin to the nodes
hbox.setMargin(chkPepperoni, new Insets(10, 10, 10, 10));
hbox.setMargin(chkCheez, new Insets(10,10,10,10));
hbox.setMargin(chkBacon, new Insets(10,10,10,10));
hbox.setMargin(chkBlackOlives, new Insets(10,10,10,10));
hbox.setMargin(price, new Insets(10, 10, 10, 10));
hbox.setMargin(calculate, new Insets(10, 10, 10, 10));
  
//retrieving the observable list of the HBox
ObservableList list = hbox.getChildren();
  
//Adding all the nodes to the observable list (HBox)
list.addAll(chkPepperoni,chkCheez,chkBacon,chkBlackOlives,calculate,price);   
  
calculate.setOnAction((event) -> {
double pizzaPrice=10.00;
if(chkBacon.isSelected())
{
pizzaPrice+=0.50;
}
if(chkPepperoni.isSelected())
{
pizzaPrice+=0.50;
}
if(chkCheez.isSelected())
{
pizzaPrice+=0.50;
}
if(chkBlackOlives.isSelected())
{
pizzaPrice+=0.50;
}
price.setText("Total Cost: $"+pizzaPrice);
});
  
//Creating a scene object
Scene scene = new Scene(hbox);
  
//Setting title to the Stage
stage.setTitle("Pizza Order");

//Adding scene to the stage
stage.setScene(scene);

//Displaying the contents of the stage
stage.show();
}

/**
* @param args the command line arguments
*/
public static void main(String[] args) {
launch(args);
}
  
}
output

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