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a guest Dec 9th, 2019 88 Never
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  1. #include<iostream>
  2. #include<fstream>
  3. using namespace std;
  4.  
  5.  
  6. struct Student {
  7.     int kcstID;
  8.     int quiz1;
  9.     int quiz2;
  10.     int quiz3;
  11.     float average;
  12. };
  13.  
  14. int main() {
  15.  
  16. // Write Code to open Binary File
  17.  ofstream exam ("student.dat" , ios::out | ios::binary);
  18.  const int n=5 ;
  19.  if(!exam) {
  20.      cout << "Cannot open file" << endl;
  21.      return 1;
  22.  }
  23.     Student stu[n] = { {163443, 8, 8, 9},
  24.               {165143,5,4,6},
  25.                 {185421,10,8,9},
  26.                        {165841,9,8,10},
  27.                        {162315,7,8,8} };
  28. for ( int i = 0 ; i < n ; i++){
  29.     stu[i].average = (stu[i].quiz1 + stu[i].quiz2 + stu[i].quiz3) / 3.0 ;
  30.     exam.write((char *)&stu[i], sizeof(Student));
  31.                        }
  32.  
  33. //  Write Code to write to file using structure in Binary format
  34.  
  35.     if (!exam.good()) {
  36.         cout << "Error occurred at writing time!" << endl;
  37.         return 1;
  38.     }
  39.     else
  40.         cout << "\n Data Successfully written to file";
  41.     exam.close();
  42.  
  43.  
  44.     return 0;
  45. }
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