====== C - C++ Files - Class to a file ======

<code cpp>
#include<iostream>
#include<fstream>
using namespace std;

class item
{
private:
  int itno,stock;
  char itname[10];
  float pprice,sprice;

public:
  void getitem()
  {
    cout<<"Enter the item no:";
    cin>>itno;
    cout<<"Enter the item name:";
    cin>>itname;
    cout<<"Enter the purchase price:";
    cin>>pprice;
    cout<<"Enter the selling price:";
    cin>>sprice;
    cout<<"Enter current stock:";
    cin>>stock;
  }
};


int main()
{
  fstream f;
  item i;
  char wish;
  f.open("item.dat",ios::app);

  do
  {
    i.getitem();
    f.write((char *)&i,(sizeof(i)));
    cout<<"Wish to add another item(y/n):";
    cin>>wish;
  } while(wish=='y');

  f.close();
 
  return 0;
}
</code>