// Program Demo prompts for and reads two integer
// values that represent the sides of a rectangle.    
// The area of the rectangle is calculated and printed.

#include <iostream>
using namespace std;

void GetData(int&, int&);	       // function prototype
// GetData gets two integer values.

int main()
{
    int  height;
    int  width;
    int  area;

    GetData(height, width);
    area = height * width;


    cout << "The area of the "  << height  << " by "
         << width  << " rectangle is "  << area  << endl;
    return 0;
}

//******************************************************

void GetData(int& firstValue, int& secondValue) 
// Post: The user has been prompted to input two values        
//       representing the length and width of a rectangle. 
//       These values have been read and returned in 
//       firstValue and secondValue.   
{   
    cout  << "Enter two integer values representing "
          << "a rectangle.  Press return."  << endl;
    cin  >> firstValue  >> secondValue;
}