This exercise is similar to the SubwayOrder exercise. This exercise will be manu

ID: 3701480 • Letter: T

Question

This exercise is similar to the SubwayOrder exercise. This exercise will be manually graded

Design an application for a pizzeria. The user makes pizza order choices from list and check boxes, and the application displays the price.

The user can choose a pizza size of small ($7), medium ($9), large ($11), or extra large ($14), and one of any number of toppings. There is no additional charge for cheese, but any other topping adds $1 to the base price. Offer at least five different topping choices.

REQUIRED FOR GRADING
The JPizzaria class extends JFrame and the title is "Student's Pizzeria"
ComboBoxes displays the correct pizza selections.
Check boxes display at least 5 topping choices
The JLabel correctly displays the order total upon ComboBox change
The JLabel correctly displays the order total upon Checkbox change
The code I have:

/**
* Enter JavaDoc Class information here
* Include a description of what this class does!!!
* Make sure you include your full name
* Filename: JPizzeria.java
*/

public class JPizzeria {

Create code here

} // end class

Explanation / Answer

Please find my implementation:

import javax.swing.*;

import java.awt.event.*;
import java.awt.*;

import javax.swing.JComboBox;

public class JPizza extends JFrame implements ActionListener {

int TotalPrice;

// Here I will create JComboBoxes

JComboBox<String> pizza = new JComboBox<String>();
JComboBox<String> toping = new JComboBox<String>();

   Font headlineFont = new Font("Arial", Font.BOLD,36);
   JLabel TowerOfPizza = new JLabel("Tower of Pizza");
   JLabel SizeList = new JLabel("Size List ");
   JLabel Toping = new JLabel("Topping List ");
   JTextField totalPrice = new JTextField(15);

public JPizza() {
super("Tower of Pizza");

       // sets the layout of the form
       setLayout(new FlowLayout());
       //setLayout(new BorderLayout());
       //setLayout(new CardLayout());

       // adds items to pizza
       pizza.addItem("None");
       pizza.addItem("Small");
       pizza.addItem("Medium");
       pizza.addItem("Large");
       pizza.addItem("Extra large");

       // adds items to toping list
       toping.addItem("None");
       toping.addItem("Cheese");
       toping.addItem("Sausage");
       toping.addItem("Lettus");
       toping.addItem("carrots");
       toping.addItem("Meet lovers");

// add labels

       add(TowerOfPizza);
       //This will set the fon't of the TowerOfPizza
       TowerOfPizza.setFont(headlineFont);
       add(SizeList);
       add(pizza);
       add(Toping);
       add(toping);
       add(totalPrice);

// Closes the program upon exit
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

// Finally in the constructor I registered a class as a
// listener for events generated by each of the three JComboBoxes

       pizza.setSelectedIndex(0);
       toping.setSelectedIndex(0);
       totalPrice.setEditable(false);
       pizza.addActionListener(this);
       toping.addActionListener(this);
       // prices.addItemListener(this);

}

   // Begin the itemStateChanged() or actionPerformed() method that executes
   // when the user selects
   // one of the elements
   // in the JComboBox. Use the appropriate
   // method to determine which specific member is the source of the current
   // ItemEvent and whether the event was generated.

public void actionPerformed(ActionEvent e) {

int positionOfSelected = (pizza).getSelectedIndex();

int topingPositionSelected = toping.getSelectedIndex();

// Switch statement for positionOfSelected

       switch (positionOfSelected) {
       case 0:
           TotalPrice = 0;
           totalPrice.setText("The Price is $" + TotalPrice);
           break;
       case 1:
           TotalPrice = 7;
           totalPrice.setText("The Price is $" + TotalPrice);
           break;
       case 2:
           TotalPrice = 9;
           totalPrice.setText("The Price is $" + TotalPrice);
           break;
       case 3:
           TotalPrice = 11;
           totalPrice.setText("The Price is $" + TotalPrice);
           break;
       case 4:
           TotalPrice = 14;
           totalPrice.setText("The Price is $" + TotalPrice);
           break;

       default:
           totalPrice.setText("The Price is $" + TotalPrice);
           break;
       }
       // If statement that adds a dollar to the total price for a topping

if (topingPositionSelected == 2 || topingPositionSelected == 3
|| topingPositionSelected == 4) {

TotalPrice++;
totalPrice.setText("The Price is $" + TotalPrice);

}

else

totalPrice.setText("The Price is $" + TotalPrice);

}

// Main Method

public static void main(String[] args) {

JPizza aFrame = new JPizza();

final int WIDTH = 300;
final int HEIGHT = 200;

aFrame.setSize(WIDTH, HEIGHT);
aFrame.setVisible(true);

}

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