#include <bits/stdc++.h>
using namespace std;

class Customer{

// data members --- by default private
 int id ;
 char name[20];

// funtcion

 public :

     void setId(){
         cout <<"Enter ID : ";
         cin >> id;
     }

     int getId(){
        return id;
     }

     void setName(){
        cout << "Enter name : ";
        cin >> name ;
     }

     char* getName(){
       return name;
     }
};


int main(){

  ofstream out("data.txt" , ios::out | ios::app );
  Customer c1 ;
  char  ch = 'Y';
  do{
    c1.setId();
    c1.setName();

    out.write( (char*)&c1 , sizeof(c1));
    cout <<"if you want to enter another data \t press Y/N \n";
    cin >> ch ;
  }while( ch=='Y');

  out.close();


  ifstream in ("data.txt" , ios::in);
  if(in.is_open()){
    cout << "Id\tName\n";
    while(!in.eof()){
        in.read( (char *) &c1 , sizeof(c1));
        if(!in.eof())
        cout << c1.getId() << '\t' << c1.getName() << "\n" ;
    }
  }else cout <<"Can't open the file \n";
  in.close();

    return 0;
}