Variable to initialized

This seems to function fine, but my running total is only outputting the most current price the user input. Any suggestions?

Code:

---

import java.util.Scanner;

public class fff
{
        public static void main(String[] args)
        {
       
        Scanner input = new Scanner (System.in);
        double[]runningArray = new double[14];
       
       
       
        System.out.println("Big Box Depot Self-Serve Checkout");
        System.out.println("");
        System.out.println("Hi. Welcome to the checkout. What's your name? ");
        System.out.println("");
       
       
        String name = input.nextLine();
        System.out.println("");
        System.out.println("Okay, " + name + ", enter the price of each purchase in dollars and cents, and then push the ENTER key. For example, if item costs $5.99 enter 5.99");
        System.out.println("");
        System.out.println("If you make a mistake when you enter a price enter a zero for the next entry and the last price you entered will be subtracted from your running total.");
        System.out.println("");
        System.out.println("When you've entered all of your prices, enter -1 to indicate that you've finished your entries. I’ll then calculate what your total owing is.");
        System.out.println("");
       
        for(int count=0; count < runningArray.length;  count++)
        {
        double runningtot = 0;
        System.out.println("Please enter price of item: ");
        double price = input.nextDouble();
                System.out.println("");
                System.out.println("That was $" + price);
                System.out.println("");
                runningtot = runningtot + price;
                                System.out.println("Your total price is $" + runningtot);
        }
       
       
       
        }
}

---

My running total variable is apparently not initialized and keeps printing out the most current number instead of a running total of all prices. Any suggestions?

Around LINE 43

Code:

---

/*
        Program:                Ahmed_Mohamed_Project2.java
        Author:                        A. Mohamed
        Date:                        Nov, 23/2012
        Description:        A program that simulates a self checkout machine
*/

import java.util.Scanner;

public class fff
{
        public static void main(String[] args)
        {
       
        Scanner input = new Scanner (System.in);
        double[]runningArray = new double[14];
       
       
       
        System.out.println("Big Box Depot Self-Serve Checkout");
        System.out.println("");
        System.out.println("Hi. Welcome to the checkout. What's your name? ");
        System.out.println("");
       
       
        String name = input.nextLine();
        System.out.println("");
        System.out.println("Okay, " + name + ", enter the price of each purchase in dollars and cents, and then push the ENTER key. For example, if item costs $5.99 enter 5.99");
        System.out.println("");
        System.out.println("If you make a mistake when you enter a price enter a zero for the next entry and the last price you entered will be subtracted from your running total.");
        System.out.println("");
        System.out.println("When you've entered all of your prices, enter -1 to indicate that you've finished your entries. I’ll then calculate what your total owing is.");
        System.out.println("");
       
        for(int count=0; count < runningArray.length;  count++)
        {
        double runningtot;
        System.out.println("Please enter price of item: ");
        double price = input.nextDouble();
                System.out.println("");
                System.out.println("That was $" + price);
                System.out.println("");
                runningtot = runningtot + price;
                                System.out.println("Your total price is $" + runningtot);
        }
       
       
       
        }
}

---

Each time round that loop you are creating a new 'runningtot' variable.
At the end of the loop that variable goes out of scope.

If you want to keep it (which you do so you can add to it) then it needs to be declared outside of the loop.

See your other thread.

Quote:

---

Originally Posted by Tolls

See your other thread.

---

I'm merging the two threads. Bungie, please go through the Forum Rules -- particularly the second paragraph.

db

Quote:

---

Originally Posted by Tolls

Each time round that loop you are creating a new 'runningtot' variable.
At the end of the loop that variable goes out of scope.

If you want to keep it (which you do so you can add to it) then it needs to be declared outside of the loop.

---

I took out double runningtot; from the for loop. But now the program is outputting the user's most current input instead of totaling the price's.

Can you show your output?

Quote:

---

Originally Posted by Tolls

Can you show your output?

---

With a printscreen? Attached.Attachment 4260

Where ti says Total Price: it should add up all the previous prices.

OK, so what does your code look like now?
Specifically the bit around the loop (including the declaration of the runningtot variable).

Quote:

---

Originally Posted by Tolls

OK, so what does your code look like now?
Specifically the bit around the loop (including the declaration of the runningtot variable).

---

Code:

---

double runningtot;
        Scanner input = new Scanner (System.in);
        double[]runningArray = new double[14];
.
.
.
.
.
for(int count=0; count < runningArray.length;  count++)
        {
       
        System.out.println("Please enter price of item: ");
        double price = input.nextDouble();
                System.out.println("");
                System.out.println("That was $" + price);
                System.out.println("");
                runningtot =+ price;
                                System.out.println("Your total price is $" + runningtot);
        }

---

That should be '+=' not '=+'.