How do I test a loop midway, save the answer, and output it at the end?

[Nicartos]

For instance, for this program, I need to determine when the total number is over 500, then display the answer after the table is displayed. Here is the code:

int main()
{
const int SIXTEEN = 16;
const int MAX = 500;
int adults = 1;
int noCages;
int babies = 0;
int total = 1;
int month = 1;

cout << "\nA table of rabbit populations, in pairs, for 15 months.";
cout << "\nMonth\tAdults\tBabies\tTotal";

while (month < SIXTEEN)
{

cout << "\n" << month << "\t" << adults << "\t" << babies << "\t" << total;

adults = babies + adults;
babies = adults - babies;
total = adults + babies;
month++;

}

system("PAUSE");
return 0;

}

[Scipio]

I assume the loop need to be determined when total is over 500, and answer is the number hold in total after the loop?

You could add a condition to your loop (while (month < SIXTEEN && total <= MAX), or use a break inside an if-statement (I recommend you the first solution).
After the loop, total still holds his value and so it can be used to ouput the answer.