// copyright 1999 Brian J. Reithel, Ph.D.

class building {
..
..
..
}

int main(){
   building onebldg;
   int choice=0;
   char nl;
   fstream bldgfile;
   char tempname[150];
   int  tempsqfeet;

   while(choice<9) {
	cout  << "Main Menu" << endl  << endl;
	cout  << "1.  Enter building information." << endl;
	cout  << "2.  Display building information." << endl;
    cout  << "3.  Load building data from disk." << endl;
	cout  << "4.  Save building data to disk." << endl;
	cout  << "9.  Exit." << endl;
	cout  << "Enter your choice (1-9):  ";
	cin >> choice;
	cin.get(nl);

	switch(choice) {
		case 1:
			onebldg.info_in();
			break;
		case 2:
			onebldg.info_out();
			break;
		case 3:
			bldgfile.open("building.dat",ios::in);
			bldgfile.get(tempname,150,'\n');
			bldgfile.get(nl);
			onebldg.setname(tempname);
			bldgfile >> tempsqfeet;
			bldgfile.get(nl);
			onebldg.setsqfeet(tempsqfeet);
			bldgfile.close();
			break;
		case 9: 
			break;
		}
   }
	return(0);
}