// Saving an person Object to Disk
#include <fstream.h>
class person {
   protected:
      char name[40];
      int age;
   public:
      void getData(void) {
         cout << "Enter Name: "; cin >> name;
         cout << "Enter Age: "; cin >> age;
      }
};
void main(void) {
   person p;
   p.getData();
   ofstream outfile("PERSON.DAT", ios::binary);
   outfile.write( (char*)&p, sizeof(p) );  // (addressOftheObj, size)
}