Thread: still having a problem

I can not get this to work. Can someone please help me. I have been working on this for a week. I am trying to take up to 10 numbers from the user (if they enter a zero it stops taking numbers). Then I try to sort the numbers from lowest to highest. Give the user the sum and the average. I am geting so frustrated and I am about ready to just give up. You guys have been great so far but I am just not getting this to work.

Code:

#include <stdio.h> 
#include <stdlib.h> 
#include <string.h>
#include <ctype.h>

#define SIZE 10 /* size of our array */

void bubbleSort (int arr[]);
void swap (int arr[], int nIndex);


 

int main(void)
{
  char theNums[10][50];
  int nums[10];
  int i, j, sum = 0;
  int numberCount = 0;
  float average;

  printf("Start by entering up to 10 numbers.  To exit enter a zero.\n");
  printf("\n");
	
  for(i=0; i < 10; i++) 
  {
    printf("Enter a Number: "); /*get the numbers*/
    fgets(theNums[i], 50, stdin);
		
    j = strlen(theNums[i])-1;
		
    theNums[i][j] = '\0'; /* get rid of '\n' */
		
    if(theNums[i][0] == '0') /* exit if zero */
      break;
  else if(!isdigit(theNums[i][0])) /*verify user data is a digit*/
  {
	printf("%s is not a valid entry.\n", theNums[i]);
    nums[i] = 0;
  }
  else		
    nums[i] = atoi(theNums[i]);
	numberCount ++;	/*count the numbers being entered*/
  }
	
  printf("\n\n");

  average = 0; /*calculate average*/
  for(j=0; j < i; j++)
    sum+=nums[j];
    average = (sum/numberCount);

  printf("Here are the numbers you entered:\n"); /*print the numbers entered on the screen*/
  for(i=0; i < numberCount; i++)
  printf("%i ",nums[i]);
  printf("\n");

  printf("Here are the numbers you entered sorted from lowest to highest:\n"); /*sort and print*/

  bubbleSort(theNums); /* sort the array */
  printf("\n\n");

  /* print the sorted array */
    for(i=0;i<theNums;++i)
        printf("array[%d] = %d\n",i,theNums[i]);
    
  
  printf("The sum of your numbers is %d", sum); /* display sum*/
  printf("\n");

  printf("You have entered %d numbers", numberCount); /*display qty of numbers entered*/
  printf("\n");

  printf("The average of the numbers is %.2f", average); /*display average*/
  printf("\n");

  getchar(); /*wait for keystroke*/
	
  return 0;
}

void bubbleSort (int arr[])
{
    int i,j;
    
    for (i=0; i<SIZE; ++i)
        for(j=0; j < (SIZE-1); ++j)
            if(arr[j] > arr[j+1])
                swap(arr,j);
}

void swap (int arr[], int nIndex)
{
    int temp = arr[nIndex];
    /* swap the elements */
    arr[nIndex] = arr[nIndex+1];
    arr[nIndex+1] = temp;
}