//program to enter the details of books
#include<iostream.h>
#include<conio.h>
#include<process.h>
#include<fstream.h>
#include<stdio.h>

struct BOOK
{ int BookNo;
  char BookTitle[20];
  int Price;
  int Edition;
}obj;
void main()
{ clrscr();
  int no;
  char p;

  ofstream ofile;
  ofile.open("BOOKS.DAT",ios::app|ios::binary) ;
  if(!ofile)
  { cout<<"\n File can not open";
exit(1);
  }

  do
  { cout<<"\n Enter the book no:";
cin>>obj.BookNo;
cout<<"\n Enter the book title:";
gets(obj.BookTitle);
cout<<"\n Enter the price of book:";
cin>>obj.Price;
cout<<"\n Enter the Edition:";
cin>>obj.Edition;
ofile.write((char*)&obj,sizeof(obj));
cout<<"\n Do you want to continue:";
cin>>p;
  }while(p=='y'||p=='Y');
  ofile.close();
  ifstream ifile;
  ifile.open("BOOKS.DAT",ios::in|ios::binary);
  if(!ifile)
  { cout<<"\n File can not read";
exit(1);
  }
  int flag=0;
  cout<<"\n Enter the book number whose details you want to search:";
  cin>>no;

  while(ifile.read((char *)&obj,sizeof(obj)))
  { if(obj.BookNo==no)
       {flag=1;
cout<<"\n  the book no:"<<obj.BookNo;
cout<<"\n  the book title:"<<obj.BookTitle;
cout<<"\n the price of book:"<<obj.Price;
cout<<"\n  the number of copies:"<<obj.Edition;
break;
      }
  }
  if(flag==0)
cout<<"Record not found";

  ifile.close();
  getch();
}

//program to store and display the details of mobile
#include<stdio.h>
#include<iostream.h>
#include<conio.h>
struct MOBILE
{int IMEIno;
char modelno[20];
char brand[30];
char details[20];
}MOB;
int i,n,IMEINO;
void main()
{clrscr();
int modelno;
char brand;
char details;

int flag=0;
{ cout<<"\n Enter no.ofmobiles:";
cin>>n;
cout<<"\n Enter modelno. of mobile:";
cin>>(modelno) ;
cout<<"\n Enter brand of mobile:";
gets(brand[i]);

cout<<"\n Enter details of mobile:";
gets(details[i])

getch();
}
cout<<"\n Enter the IMEINO to be searched:";
cin>>IMEINO;
for (i=0;i<n;i++)
{if(flag==1)
cout<<" mobile[i].mobile.modelno" <<"mobile[i].mobile. brand"
<<"mobile[i].mobile.modetails"<<(i+1);
else
cout<<"\n mobile not found:";
  }