I would like the user to be able to see the sales total for any given month when they input a valid month. Everything works other than what I stated above. I am completely stumped on how to store the salesTotal values inputted by the user into an array (monthSalesTotal). Here is what i have so far, any help will be greatly appreciated.

#include <iostream>
using namespace std;

int main()
{
	int i;
	int salesTotal[12];
	double average = 0.0;
	double sum = 0.0;
	int choice;
	int monthSalesTotal[12];

	for (i = 1; i < 13; i++)
	{
		cout << "Please enter the monthly sales total for month " << i << ":> ";
		cin >> salesTotal[i];
		sum += salesTotal[i];
		average = sum / i;
	}
	cout << "The average monthly sales for the year is:> " << average << endl;

	cout << "For what month would you like to see a sales value? ";
	cin >> choice;

	switch(choice)
	{
	case 1:
		choice = 1;
		break;
	case 2:
		choice = 2;
		break;
	case 3:
		choice = 3;
		break;
	case 4:
		choice = 4;
		break;
	case 5:
		choice = 5;
		break;
	case 6:
		choice = 6;
		break;
	case 7:
		choice = 7;
		break;
	case 8:
		choice = 8;
		break;
	case 9:
		choice = 9;
		break;
	case 10:
		choice = 10;
		break;
	case 11:
		choice = 11;
		break;
	case 12:
		choice = 12;
		break;
	default:
		cout << "This is an invaid choice, please re-enter:> ";
		cin >> choice;
	}
	cout << "The sales total for the month " << choice << " is:> " << salesTotal[i] << endl;

	system("pause");
	return 0;
}

The first thing I see is that valid indices for salesTotal range from 0-11 but you are trying to access elements with indexes of 1-12. Adjust the indicies so they coincide and don't access memory not allocated to salesTotal and it has a good chance of working.

as lerner said....
for(int i = 0; i < 12; i ++)

arrays start with 0, the [12] is a null which is used to indicate the end of the array.

please mark thread as solved on bottom

Edited 4 Years Ago by jigglymig: n/a

arrays start with 0, the [12] is a null which is used to indicate the end of the array.

No, the [12] is not a null, it's the next variable in the data area. [11] is the end of any array with 12 elements.

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