Question

I can not get my code to compile, can someone please help? its in java.

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
public class Pizzeria {
public static void main(String[] args) {
Scanner scnr = new Scanner(System.in);
// variables
String userName;
String pizzaName;
double diameter;
double area = 0;
char totalDisplay = 0;
char pepperoniChoice;
double total = 0.0;
int numPizzas = 0;
final double cheesePerInch = 0.0272;
final double saucePerInch = 0.0316;
final double doughPerInch = 0.0228;
final double toppingPerInch = 0.0284;
String[] pizzaNames = new String[50]; // Array to store pizza names
double[] pizzaPrices = new double[50]; // Array to store pizza prices
//array list of valid toppings
String[] validToppings = {"Pepperoni", "Mushroom", "Chicken", "Ham", "Pineapple", "Sausage", "Basil", "Olive"};
//user intro
System.out.println("Welcome to Adkins Pizzeria!");
System.out.println("Can I have your name please?");
userName = scnr.nextLine();
System.out.println("Ok, let's start your order, " + userName + ".");
//Menu
while (true) {
System.out.println("Here is what you can do next:");
System.out.println("MENU");
System.out.println("a - Add a pizza");
System.out.println("t - Print the total");
System.out.println("r - Read the order");
System.out.println("q - Quit");
System.out.println("Please make a selection:");
String selection = "";
//read users selection and store it into variable for switch statement
selection = scnr.nextLine();
switch (selection) {
case "a":
numPizzas++;
System.out.println("\\What would you like to name pizza number " + numPizzas + "?");
pizzaName = scnr.nextLine();
System.out.println("What size would you like " + pizzaName + " to be?");
System.out.println("We can handle pizzas between 8 and 48 inches.");
diameter = scnr.nextDouble();
while (diameter < 8 || diameter > 48) {
System.out.println("Invalid diameter. Please enter a value between 8 and 48 inches.");
diameter = scnr.nextDouble();
}
scnr.nextLine(); // Consume the remaining newline character
System.out.println("How many toppings would you like on this pizza?");
System.out.println("You can have between 0-8 toppings.");
int numToppings = scnr.nextInt();
while (numToppings < 0 || numToppings > 8) {
System.out.println("Invalid number of toppings. Please enter a value between 0 and 8.");
numToppings = scnr.nextInt();
}
scnr.nextLine(); // Consume the remaining newline characterString[] toppings = new String[numToppings];
for (int j = 0; j < numToppings; j++) {
System.out.println("What topping would you like?");
System.out.println("Your options are: Pepperoni, Mushroom, Chicken, Ham, Pineapple, Sausage, Basil, Olive.");
String topping = scnr.nextLine();
while (!Arrays.asList(validToppings).contains(topping)) {
System.out.println("Invalid topping. Your options are: Pepperoni, Mushroom, Chicken, Ham, Pineapple, Sausage, Basil, Olive.");
topping = scnr.nextLine();
}
toppings[j] = topping;
System.out.println("Chosen topping " + topping + " added.");
System.out.println();
}
double pizzaCost = Math.PI * Math.pow(diameter / 2.0, 2) * (cheesePerInch + saucePerInch + doughPerInch + numToppings * toppingPerInch);
total += pizzaCost;
System.out.print("You have ordered " + pizzaName + " with toppings: ");
for (int j = 0; j < numToppings; j++) {
System.out.print(toppings[j] + ", ");
}
System.out.printf("This pizza costs $%.2f\\", pizzaCost);
// store pizza name and cost in arrays
Pizza Name[numPizzas - 1] = pizzaName;
pizzaPrices[numPizzas - 1] = pizzaCost;
break;
case "t":
System.out.printf("The total cost of your order is $%.2f\\", total);
break;
case "r":
System.out.println("Your order:");
for (int i = 0; i < numPizzas; i++) {
System.out.printf("%d. %s: $%.2f\\", i + 1, pizzaNames[i], pizzaPrices[i]);
}
break;
case "q":
System.out.println("Thank you for your order! Goodbye!");
System.exit(0);
break;
default:
System.out.println("Invalid selection. Please try again.");
break;
}
}
}
}

Answer 1

The provided Java code has a compilation issue, possibly related to syntax errors or logical errors. One error found is with the incorrect variable reference Pizza Name which should be pizzaNames. To help further, a specific error message would be needed.

Step-by-step explanation:

The student is experiencing issues with their Java code not compiling, specifically a Java program designed for a hypothetical pizzeria where users can order pizzas with various toppings. The code provided is substantial and seems like an assignment where multiple concepts such as loops, arrays, input handling, conditionals, and basic arithmetic operations are being practiced. The issue with the code could stem from either syntax errors, logical errors, type mismatches, or an issue with how the Scanner class is being used.However, without a specific error message or a description of the issue, it is difficult to provide a precise solution. Generally, to troubleshoot such issues, one could:

• Ensure that all variables are correctly declared and initialized before use.
• Check that loops and if-statements have the proper syntax and logical conditions.
• Verify that the Scanner object is used correctly, and that the 'nextLine()' method is called after each 'nextInt()' to consume the newline character left in the input buffer.
• Look for a potential typo or incorrect naming which might be causing the code to not compile.One specific issue in the provided code is the line Pizza Name[numPizzas - 1] = pizzaName;, which has a space in the variable name and therefore would cause a compilation error. It should be pizzaNames[numPizzas - 1] = pizzaName; to correctly assign the pizza name to the array.