Switch Statement not initializing value

Question

I'm taking a basic JAVA class and one of our assignments is to use the switch statement to determine the price of a product the add up the total of all products entered at the end. The code below won't compile because it says that "price" isn't initialized. If I initialize the variable as "0.0" then when the program finishes it is still "0.0" which means the switch section isn't working. Can anyone tell me why this isn't working?
import java.util.Scanner;
public class Product
public static void main( String args[] )
     Scanner input = new Scanner(System.in);
     int product;
     int quantity;
     double price;
     double total = 0.0;
     System.out.print("Enter product number: ");
     product = input.nextInt();
     while (product != -1)
          System.out.print("Enter quantity: ");
          quantity = input.nextInt();
          switch (product)
               case 5:
                    price = 6.87;
                    break;
               case 4:
                    price = 4.49;
                    break;
               case 3:
                    price = 9.98;
                    break;
               case 2:
                    price = 4.50;
                    break;
               case 1:
                    price = 2.98;
                    break;
               default:
                    System.out.print("Invalid product number");
                    break;
          total = total + price;
          System.out.println("Enter product number: (-1 to quit)");
          product = input.nextInt();
     System.out.printf("Total retail value of product is: $%.2f", price);
Thanks for any help!
Nathan

Answer 1

I think the correct code should be:
import java.util.Scanner;
public class Product
public static void main( String args[] )
     Scanner input = new Scanner(System.in);
     int product;
     int quantity;
     double price = 0.0;
     double total = 0.0;
     System.out.print("Enter product number: ");
     product = input.nextInt();
     while (product != -1)
          System.out.print("Enter quantity: ");
          quantity = input.nextInt();
          switch (product)
               case 5:
                    price = 6.87;
                    break;
               case 4:
                    price = 4.49;
                    break;
               case 3:
                    price = 9.98;
                    break;
               case 2:
                    price = 4.50;
                    break;
               case 1:
                    price = 2.98;
                    break;
               default:
                    System.out.print("Invalid product number");
                    break;
          total = total + (price*quantity);
          System.out.println("Enter product number: (-1 to quit)");
          product = input.nextInt();
     System.out.printf("Total retail value of product is: $%.2f", total);
}