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The program jumps one step ahead

Alex1993 (15)
I have a program that calculates the something bla bla bla and I need the user to input some numbers from the keyboard and when I select the function that does the reading I get on the screen something like:

"[...text...] please make your selection: (I press 1) Please insert your first number: incorrect entry, try again! Please insert your first number:" and then it allows me to input a number. I need to get rid of that first "Please insert number" but I do not know how to do it. I think it has something to do with flushing the buffer, but I am new to Cpp and I do not know how to proceed. 



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void className::read() {
	int i, ans1;
	for (i = 1; i <= 6; i++) {
		bool fQuit = false;
		switch (i) {
		case 1:
			while (!fQuit)
			{
				cout << "Insert the first number: " << ends;
				string temp;
				getline(cin, temp);
				stringstream stream(temp);
				double int_choice;
				if (!(stream >> int_choice) || stream.peek() != char_traits<double>::eof())
				{
					cout << "Incorrect entry, try again\n";
				}
				else
				{
					S = stod(temp);
					fQuit = true;
					break;
				}
			}
			break;

		case 2:
			while (!fQuit)
			{
				cout << "Insert the second number: " << ends;
				string temp;
				getline(cin, temp);
				stringstream stream(temp);
				double int_choice;
				if (!(stream >> int_choice) || stream.peek() != char_traits<double>::eof())
				{
					cout << "Incorrect entry, try again\n";
				}
				else
				{
					K = stod(temp);
					fQuit = true;
					break;
				}
			}
			break;

		case 3:
			while (!fQuit)
			{
				cout << "Insert the third number " << ends;
				string temp;
				getline(cin, temp);
				stringstream stream(temp);
				double int_choice;
				if (!(stream >> int_choice) || stream.peek() != char_traits<double>::eof())
				{
					cout << "Incorrect entry, try again\n";
				}
				else
				{
					T = stod(temp) / 12;
					fQuit = true;
					break;
				}
			}
			break;

		case 4:
			while (!fQuit)
			{
				cout << "Insert the fourth number " << ends;
				string temp;
				getline(cin, temp);
				stringstream stream(temp);
				double int_choice;
				if (!(stream >> int_choice) || stream.peek() != char_traits<double>::eof())
				{
					cout << "Incorrect entry, try again\n";
				}
				else
				{
					sig = stod(temp);
					if (sig > 1) {
						sig = sig / 100;
					}
					fQuit = true;
					break;
				}
			}
			break;

		case 5:
			while (!fQuit)
			{
				cout << "Insert the fifth number" << ends;
				string temp;
				getline(cin, temp);
				stringstream stream(temp);
				double int_choice;
				if (!(stream >> int_choice) || stream.peek() != char_traits<double>::eof())
				{
					cout << "Incorrect entry, try again\n";
				}
				else
				{
					r = stod(temp);
					if (r > 1) {
						r = r / 100;
					}
					fQuit = true;
					break;
				}
			}
			break;

		default:
			break;
		}
	}
}
////////////////////////////////////////////////////////////////////////////////
int main() {
	int ans;
	//string iInp;
	header();
label1:
	menu();
	ans = exhan();
	className init;
	init.read();
	switch (ans)
	{
	case 1: 
	{
		className obj0;
		//obj0.read();
		obj0.N();
		//obj0.select();
		cout << "text: " << obj0.result() << endl;
		system("Pause");
		goto label1;
	}
[...]
defaul:
break;
*there are more cases but they are very similar to the first one.
	system("pause");
	return 0;
}
jonnin (11442)
You only want it to look like:

please insert first number
< moo!
incorrect, try again
<no!
incorrect, try again
123
...

then take the cout above the while loop, like this:


cout << "Insert the first number: " << ends; //put it here
while (!fQuit)
{
// remove this one cout << "Insert the first number: " << ends;
string temp;
getline(cin, temp);
etc...


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