gistfile1.cpp

static const int MAX = 10;

int stockAry[MAX];
int yearAry[MAX];
string modelAry[MAX];

void aryInitilaizer();

void stockInput(int i);
void yearSort();
void stockSort();
void prompt();
void sortPrompt();


int main() {

	aryInitilaizer();
	prompt();
	sortPrompt();
	output();
}

void aryInitilaizer() {
	for(int i=0; i < MAX; i++) {
		stockAry[i] = 0;
		yearAry[i] = 0;
		modelAry[i] = "empty";
		//MakeAry
		//MilesAry
		//PriceAry
	}

}

void prompt() {
	int choice = 0;
		"What would you like to do?" << endl;
		"1) Enter new data" << endl;
		"2) Sort Data" << endl;
		"Enter 1 or 2: ";
		cin >> choice;
		if(choice != 1 || choice != 2) {
			choice = 0;
		}
		switch(choice) {
			case 0:
			return 0;

			case 1: 

				for(int i=0; i < MAX; i++) {
			
					stockInput(i);
			
					cout << "Enter Year: ";
					cin >> yearAry[i];
					cout << endl;

					cout << "Enter Model: ";
					cin >> modelAry[i];
					cout >> endl;

					//MakeAry
					//MilesAry
					//PriceAry
				}


			case 2:
			sortPrompt();


		}

		
}

void sortPrompt() {
	cout << "1) Sort by Stock Number " << endl;
    cout << "2) Sort by Year " << endl;
    cout << "3) Sort by Make " << endl;
    cout << "4) Sort by Model " << endl;
    cout << "5) Sort by Mileage " << endl;
    cout << "6) Sort by Price " << endl;
    cout << "7) Exit Program " << endl;
    cout << "\n\n Please select an option :"; // Prompts user to pick sort method
    cin >> option;  // Takes option value and saving as variable "Option"
    if(option > 7) {
    	option = 7;
    }


     if(option == 1)
    {
       stockSort();
     }
    if(option == 2)
    {
        yearSort();
    }
    if(option == 3)
    {
       
     }
    if(option == 4)
    {
     
     }
    if(option == 5)
    {
       
     }
    if(option == 6)
    {
       
     }
     else if(option == 7)
     {
         cout << "Terminating Program"  << endl;
     }
}

void output() {
	char input;
	cout << "would you like to view the sorted results( y or n): ";
	cin >> input;
	switch(input)
		case "y":
			for(int i=0; i < MAX; i++) {
				cout << "Car " << i << endl;
				cout << "Stock #: " << stockAry[i] << endl;
				cout << "Year #: " << yearAry[i] << endl;
				cout << "Model #: " << modelAry[i] << endl;
			}
		
		case "n":
			prompt();
	}

}

void stockInput(int i) {
	int index = i;
	cout << "Enter Stock #: ";
		cin >> stockAry[index];
		cout << endl;
}

void stockSort(char a) {
	int i =1;
	int j =1;
	int flag = 1;
	int yearTemp = 0;
	int stockTemp = 0;
	string modelTemp = "null";
	//MakeTemp
	//MilesTemp
	//PriceTemp

	for(i=1; (i <= MAX) && flag; i++) { // i = 3, 
		
		flag = 0; //set to false

		for(j =0; j < (MAX -1); j++) {
			if(stockAry[j+1] > stockAry[j]) {
			yearTemp = yearAry[j];
			stockTemp = stockAry[j];
			modelTemp = modelAry[j];
			//MakeTemp
			//MilesTemp
			//PriceTemp
			
			yearAry[j] = yearAry[j+1];
			stockAry[j] = stockAry[j+1];
			modelAry[j] = modelTemp[j+1];
			//MakeAry j = j+1
			//MilesAry j = j+1
			//PriceAry j = j+1
			
			yearAry[j+1] = yearTemp;
			stockAry[j+1] = stockTemp;
			modelAry[j+1] = modelTemp;

			//MakeAry j+1 = temp
			//MilesAry j+1 = temp
			//PriceAry j+1 = temp

			flag = 1;
			}
		}

	}
}

Looks good!