Ton of problems

[Ian Dudek]

I have been working on the project for days and I am stuck. I have been trying to clear up problems in each section before going on to the next one but it has not been working too well. I am just so lost I don't even know where to start anymore. I did get down the errors to just 15 but each time I try to change something I get more errors so thats why I am asking for help.

AHH X()
Ian

// Make it possible to use required packaged code 
 
import java.util; 
import java.io.*; 
import java.text.*; 
 
// This class defines a program to process orders for a fast food restaurant. 
// ---- Written by: Jon Huhtala 
// --- Modified by: Ian Dudek 
public class Project02 { 
 
// This method begins application processing. 
 
public static void main(String[] args) { 
 
   // Variables. 
 
   double taxRate;             // For holding the tax rate. 
   String reply;               // For holding the user's latest keyboard entry. 
   ArrayList quantities;       // For holding the item quantities for the 
                               // customer order. 
 
   // These coordinated arrays hold item names and their prices 
 
   String[] items = {"Burgers", "Fries", "Drinks"}; 
   double[] prices = {2.75, 1.50, 1.35}; 
 
   // If the program did not receive a command line parameter, set the 
   // tax rate to .06 (meaning 6%). Otherwise, set the tax rate to the 
   // value of the parameter. 
 
   if (items == 0) { 
     taxRate = .06; 
   } 
   else { 
     String taxRateAsString = taxRate;      // GET PARAMETER VALUE. 
     taxRate = taxRate.replace(taxRateAsString);  // CONVERT FROM String TO int. 
   } 
 
   // Loop to process one customer order. 
 
   do { 
 
     // Display item names and prices. 
 
     System.out.println(""); 
     System.out.println("--------- ITEMS AND PRICES ---------"); 
     System.out.println(""); 
 
     // THIS LOOP SHOULD DISPLAY ITEM NAMES AND PRICES IN A FORMAT THAT 
     // MATCHES THE SAMPLE OUTPUT SHOWN BELOW. 
 
     for (int i = 0; i < items.indexof(); i++) {    // LIMIT BY SIZE OF items ARRAY. 
       System.out.println(" " + taxrate + "..." + Utility.moneyFormat(quantities)); 
     } 
 
     // Get order data. 
 
     System.out.println(""); 
     System.out.println("------------ YOUR ORDER ------------"); 
     System.out.println(""); 
     quantities = new ArrayList(); 
 
     // THIS LOOP SHOULD PROMPT FOR AND READ THE NUMBER OF EACH ITEM THE 
     // CUSTOMER WANTS TO BUY. IT SHOULD MATCH THE FORMAT OF THE SAMPLE 
     // OUTPUT SHOWN BELOW. 
 
     for (int i = 0; i < items.indexof; i++) {    // LIMIT BY SIZE OF items ARRAY. 
       System.out.print(" Number of " + quantities + ": "); 
       reply = Utility.readString(); 
       quantities.insert();    // ADD TO THE quantities ArrayList. 
     } 
 
     // Calculate and display "Payment Due" information. 
 
     System.out.println(""); 
     System.out.println("----------- PAYMENT DUE ------------"); 
     System.out.println(""); 
     double subtotal = calculate(prices, quantities); 
     System.out.println(" Subtotal: " + Utility.moneyFormat(subtotal)); 
     double tax = subtotal * taxRate; 
     System.out.println(" Tax: " + Utility.moneyFormat(tax) + 
                        " at " + taxRateAsString);  // SHOW taxRate AS A FORMATTED PERCENTAGE. 
     double totalDue = subtotal + tax; 
     System.out.println(" TOTAL: " + Utility.moneyFormat(totalDue)); 
 
     // Ask the user if they want to process another order. If they reply with 
     // a String whose value is "YES", repeat this loop. 
 
     System.out.println(""); 
     System.out.println("-------------- AGAIN? --------------"); 
     System.out.println(""); 
     System.out.print(" Enter YES to do another order: "); 
     reply = Utility.readString(); 
   } while (reply.equalsIgnoreCase(yes));  // ACCEPT "YES" IN ANY CASE (SUCH AS "yes") TO CONTINUE. 
} 
 
// This method can be called to calculate the non-taxable amount due for 
// an order. It receives the array of prices and ArrayList of corresponding 
// quantities as parameters. 
 
public static double calculate(double prices[], ArrayList quantities) { 
   double total = 0; 
   for (int i = 0; i < items.indexof; i++) {   // LIMIT BY SIZE OF THE ARRAY. 
     double price = _________;    // GET THE ITEM'S PRICE.price * price 
     int quantity = ___________;    // GET THE CORRESPONDING QUANTITY ORDERED.quantity.get() 
     double extendedPrice = price * quantity; 
     total += extendedPrice; 
   } 
   return total; 
} 
} 
 
// This class contains custom methods that support application processing. 
// ----- Written by: Jon Huhtala 
 
class Utility { 
private static BufferedReader kbReader = 
   new BufferedReader(new InputStreamReader(System.in)); 
 
// This method read a String value from the keyboard. 
 
public static String readString() { 
   String result = null; 
   while (result == null) { 
     try { 
       result = kbReader.readLine(); 
     } 
     catch(Exception err) { 
       System.out.print("ERROR! Please try again: "); 
     } 
   } 
   return result; 
} 
 
// This method converts a double to a formatted currency String. 
// For example: 1234.56 --> "$1,234.56" 
 
public static String moneyFormat(double amount) { 
   return NumberFormat.getCurrencyInstance().format(amount); 
} 
 
// This method converts a double to a formatted percentage String 
// having exactly one decimal place. 
// For example: .075 --> "7.5%" 
 
public static String percentFormat(double amount) { 
   NumberFormat nf = NumberFormat.getPercentInstance(); 
   nf.setMaximumFractionDigits(1); 
   nf.setMinimumFractionDigits(1); 
   return nf.format(amount); 
} 
}

EDIT by mw: Added Code Tags to original poster's indentation.
[ March 30, 2006: Message edited by: marc weber ]

[Keith Lynn]

In the first line, you need to change the import statement so it import classes.

[Christophe Verré]

[1] import java.util; -> import java.util.*;
[30] if (items == 0) {  -> if (args.length == 0) { 
[34] String taxRateAsString = taxRate; -> String taxRateAsString = args[0];
[35] taxRate = taxRate.replace(taxRateAsString); -> taxRate = Integer.parseInt(taxRateAsString);

I won't go further, because :

1. This is obviously an assignment that you should do yourself
2. You need to understand what to do before coding.

The comments are very explicit. For example:
//If the program did not receive a command line parameter
Why do you type : if ( items == 0 ) ?

Good luck