C++ File Handling Program

Write a program that shows the use of read() and write() to handle file I/O involving objects.

#include<iostream.h>
#include<fstream.h>
#include<iomanip.h>
class INVENTORY
{
  char name[10];
  int code;
  float cost;
  public:
    void readdata(void);
    void writedata(void);
};
void INVENTORY :: readdata(void)
{
  cout<<"\n Enter name:";cin>>name;
  cout<<"\n Enter code:";cin>>code;
  cout<<"\n Enter cost:";cin>>cost;
}
void INVENTORY :: writedata(void)
{
  cout<<setiosflags(ios::left)
  <<setw(10)<<name
  <<setiosflags(ios::right)
  <<setw(10<<code)
  <<setprecision(2)
  <<setw(10)<<cost<<endl;
}
int main()
{
  INVENTORY item[3];
  fstream file;
  file.open("Stock.dat",ios::in|ios::out);
  cout<<"\n Enter details for three items \n";
  for(int i=0;i<3;i++)
  {
    item[i].readdata();
    file.write((char *) & item[i],sizeof(item[i]));
  }
  file.seekg(0);
  cout<<"\nOutput\n";
  for(i=0;i<3;i++)
  {
    file.readdata((char *) &item[i],sizeof(item[i]));
    item[i].writedata();
  }
  file.close();
  return 0;
}

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