C++ OOP not storing and displaying content correctly -

i trying create program takes input user length, width, , height of box, , sends appropriate member function , returns main. length, width, , height not storing , displaying correctly in oop using visual studio. code seems take last input (which height) , set length, , set rest 1.0. can't figure out im doing wrong here.

my giftwrap.h file

#ifndef giftwrap_h #define giftwrap_h using namespace std;  class giftwrap{ private:     double length;     double width;     double height;     double taxrate;     double priceperinch;     double subtotal;     double total;     double tax;  public:     giftwrap();     giftwrap(double, double);     bool setlength(double);     bool setwidth(double);     bool setheight(double);     bool settaxrate(double);     bool setpriceperinch(double);     double getlength() const;     double getwidth() const;     double getheight() const;     double getpriceperinch() const;     double gettaxrate() const;     double calcsubtotal();     double calctax();     double calctotal(); };  #endif 

my giftwrap.cpp file:

#include "giftwrap.h" #include <iostream> using namespace std;  giftwrap::giftwrap(){     length = 1.0;     height = 1.0;     width = 1.0;     priceperinch = 0.0036;     taxrate = 0.08; }  giftwrap::giftwrap(double r, double c){     length = 1.0;     height = 1.0;     width = 1.0;     setpriceperinch(r);     settaxrate(c); }   double giftwrap::getheight() const{     return height; }  double giftwrap::getwidth() const{     return width; }  double giftwrap::getlength() const{     return length; } double giftwrap::getpriceperinch() const{     return priceperinch; }  double giftwrap::gettaxrate() const{     return taxrate; }  double giftwrap::calcsubtotal(){      subtotal = priceperinch * ((2 * length * width) + (2 * length * height) + (2 * width * height));     return subtotal; }  double giftwrap::calctax() {     tax = subtotal * taxrate;     return tax; }  double giftwrap::calctotal() {     total = tax + subtotal;     return total; }  bool giftwrap::setheight(double h){     if (h > 0){         height = h;         return true;     }     else{         return false;     } }  bool giftwrap::setwidth(double w){     if (w > 0){         width = w;         return true;     }     else{         return false;     }  }  bool giftwrap::setlength(double l){     if (l > 0){         length = l;         return true;     }     else{         return false;     }  } bool giftwrap::settaxrate(double t){     if (t > 0 && t < 1){         taxrate = t;         return true;     }     else{         return false;     }  }  bool giftwrap::setpriceperinch(double p){     if (p > 0){         priceperinch = p;         return true;     }     else{         return false;     } } 

my giftwrapapp.cpp file:

#include "giftwrap.h" #include <iostream> #include <string> #include <iomanip> using namespace std;  void showinvoice(giftwrap&);  int main(){     char selection;     double len;     double wid;     double hei;     string storename = "sallys gifts";     giftwrap sallys(0.0025, 0.925);     do{         cout << "gift wrap invoice generator" << endl             << "------------------------------" << endl             << "a)generate gift wrap invoice" << endl             << "q)quit" << endl;         cin >> selection;         if (selection == 'a' || selection == 'a'){             cout << "please enter length of box:" << endl;             cin >> len;             while (!sallys.setlength(len)){                 cout << "invalid selection, try again" << endl;                 cin >> len;             }             cout << "please enter width of box:" << endl;             cin >> wid;             while (!sallys.setlength(wid)){                 cout << "invalid selection, try again" << endl;                 cin >> wid;             }             cout << "please enter height of box:" << endl;             cin >> hei;             while (!sallys.setlength(hei)){                 cout << "invalid selection, try again" << endl;                 cin >> hei;             }             cout << "\ngift wrap invoice - " << storename << endl                 << "----------------------------------" << endl;             showinvoice(sallys);         }         else if (selection == 'q' || selection == 'q'){             cout << "thank using program!" << endl;         }         else{             cout << "invalid selection, try again" << endl;         }      } while (selection != 'q' && selection != 'q');     system("pause");     return 0; }  void showinvoice(giftwrap& r){     cout << "box length: " << fixed << setprecision(2)  << r.getlength() << endl;     cout << "box width: " << fixed << setprecision(2) << r.getwidth() << endl;     cout << "box height: " << fixed << setprecision(2) << r.getheight() << endl;     cout << "price per inch: " << fixed << setprecision(4) << r.getpriceperinch() << "\n" << endl;      cout << "subtotal: " << fixed << setprecision(2) << r.calcsubtotal() << endl;     cout << "tax: " << fixed << setprecision(2) << r.calctax() << endl;     cout << setw(5) << "----------" << endl;     cout << "total: " <<  fixed << setprecision(2) << r.calctotal() << endl;     cout << endl;  } 

here result im getting: http://s10.postimg.org/q97jhgc4p/11111.png

in giftwrapapp.cpp inside do while() loop, there 2 mistakes:

cout << "please enter width of box:" << endl; cin >> wid; while (!sallys.setlength(wid)){ // <----- should sallys.setwidthd()!!!     cout << "invalid selection, try again" << endl;     cin >> wid; } cout << "please enter height of box:" << endl; cin >> hei; while (!sallys.setlength(hei)){ // <-- should sallys.sethight(hei)!!      cout << "invalid selection, try again" << endl;     cin >> hei; } 

hope helps!