Gus Moeller

Yeah, thanks, I ended up getting it worked out, but those were exactly my problems.
/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package inventory; import java.util.Scanner; /** * * @author Gus */ public class InventoryC { /** * @param args the command line arguments */ public static void main(String[] args) { Scanner input = new Scanner (System.in);// run scanner int count = 0; // array-loop count double totalValue = 0; System.out.println("Welcome to inventory managment.\n");// welcome System.out.println("How many items?"); count = input.nextInt();// count String [] productName = new String [count]; int a = 0; double [] itemNumber = new double [count]; double [] numberUnits = new double [count]; double [] unitPrice = new double [count]; double [] unitValue = new double [count]; for (int i = 0; i < count; i++) { System.out.print("Enter item name: \n"); productName[i] = input.next();// get productName } int b = 0;// start variable count for itemNumber int count2 = 0;// start count for loop while (count2 < count)// start loop for itemNumber { count2++; System.out.println("Enter item number for "+ productName[a]); itemNumber[b]= input.nextDouble();// get itemNumber b++;// bump itemNumber array a++;// bump productName array } a = 0; int c = 0; int count3 = 0; while (count3 < count) { count3++; System.out.println("Enter number of units for "+ productName[a]); numberUnits[c]= input.nextDouble(); c++; a++; } a = 0; int d = 0; int count4 = 0; while (count4 < count) { count4++; System.out.println("Enter price per unit for "+ productName[a]); unitPrice[d]= input.nextDouble(); d++; a++; } c = 0; d = 0; int e = 0; int count5 = 0; while (count5 < count)// loop for calculation of unitValue { count5++; unitValue[e] = numberUnits[c] * unitPrice[d]; c++; d++; e++; } e = 0; int count6 = 0; while (count6 < count) { count6++; totalValue = totalValue + unitValue[e]; e++; } a = 0; b = 0; c = 0; d = 0; e = 0; int count7 = 0; while (count7 < count) { count7++; System.out.println(); System.out.println(productName[a]); System.out.println("Item number: "+itemNumber[b]); System.out.println("Units in stock: "+numberUnits[c]); System.out.println("Value: $"+unitPrice[d]+" each"); System.out.println("This item stock value: $"+unitValue[e]); a++; b++; c++; d++; e++; } System.out.println(); System.out.println("Total inventory value is: $"+totalValue); }// end main }// end class

This is what I ended up with, I know there's a lot of redundant loops in there, but it's due today. Hopefully I'll get time to clean it up later.

Thanks again.

It was intended to be a variable for the array, initially line 37 used an i for the count variable, that's where I got the error. This code is the result of me trying to tweak it to get it to work. When I switched the count variable to a in line 37 I got an error in the array variable on line 40.

Can someone please help me understand why I'm getting an exception here?
_____________________________________________________________________________

run:
Welcome to inventory managment.

How many items?
3
Enter item name: Homo
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 0
at inventory.Inventory.main(Inventory.java:39)
Java Result: 1
BUILD SUCCESSFUL (total time: 16 seconds)
_____________________________________________________________________________

/* * To change this template, choose Tools | Templates * and open the template in the editor. */ package inventory; import java.util.Scanner; /** * * @author Gus */ public class Inventory { /** * @param args the command line arguments */ public static void main(String[] args) { Scanner input = new Scanner (System.in);// run scanner int count = 0; // array-loop count String [] productName = new String [count]; double [] itemNumber = new double [count]; double [] numberUnits = new double [count]; double [] unitPrice = new double [count]; double [] unitValue = new double [count]; double totalValue = 0; System.out.println("Welcome to inventory managment.\n");// welcome System.out.println("How many items?"); count = input.nextInt();// count for (int a = 0; a < count; a++) { System.out.print("Enter item name: "); productName [i] = input.next(); } }// end main }// end class

Thanks in advance.