simple calculator and source

http://rapidshare.com/files/174399846/Calculator.exe

Source:
======================================================================

#include<iostream>
using namespace std;

int main(void)
{

system("TITLE Calculator");
system("COLOR 3");
char cChar;
double dfirstnumber;
double dsecondnumber;
char cdoagain;

do
{
system("CLS");
cout << "please enter the first number that you would like to use" << endl;
cin >> dfirstnumber;
cout << "please enter the operation that you would like to complete" << " (+,-,* or /)" << endl;
cin >> cChar;
cout << "Please enter the second number you would like to use" << endl;
cin >> dsecondnumber;

switch (cChar)
{
case '+':
cout << "the answer is! " << dfirstnumber << " + " << dsecondnumber << " = " << (dfirstnumber + dsecondnumber) << endl;
break;

case '-':
cout << "the answer is! " << dfirstnumber << " - " << dsecondnumber << " = " << (dfirstnumber - dsecondnumber) << endl;
break;

case '*':
cout << "the answer is! " << dfirstnumber << " * " << dsecondnumber << " = " << (dfirstnumber * dsecondnumber) << endl;
break;

case 'x':
cout << "the answer is! " << dfirstnumber << " x " << dsecondnumber << " = " << (dfirstnumber * dsecondnumber) << endl;
break;

case '/':
if(dsecondnumber == 0) {
cout << "that is an invalid operation" << endl;
} else
{
cout << "the answer is! " << dfirstnumber << " / " << dsecondnumber << " = " << (dfirstnumber / dsecondnumber) << endl;
}
break;

default:
cout << "That is an invalid operation" << endl;
break;
}
cout << "would you like to start again? (y or n) " << endl;
cin >> cdoagain;
}while (cdoagain == 'Y' || cdoagain == 'y');
system("PAUSE");
return 0;
}

very nice
How long did it take you?

Like 5 minutes to do it

well, that made my head spin
nice...whatever that is

hahahaha