Mini project student database system in c++ source code download

This is simple student information system project.Wher you can do following things 1. Add    Records
          2. List   Records
          3. Modify Records
          4. Delete Records
          5. Exit   Program
to store data file is used. Download project from GitHub.

Here is the source code,compile it in code::blocks

#include <iostream>

#include <cstdio>

#include <cstring>

#include <cstdlib>

#include <conio.h>

#include <iomanip>

using namespace std;

int main() {

    FILE *fp, *ft;

    char another, choice;

struct student {

        char first_name[50], last_name[50];

        char course[100];

        int section;

    };

    struct student e;

    char xfirst_name[50], xlast_name[50];

    long int recsize;

    fp=fopen("users.txt","rb+");

    if (fp == NULL) {

        fp = fopen("users.txt","wb+");

        if (fp==NULL)

        {

             puts("Cannot open file");

             return 0;

        }

    }

 recsize = sizeof(e);

 while(1) {

     system("cls");

     cout << "\t\t====== STUDENT INFORMATION SYSTEM ======";

     cout <<"\n\n                                          ";

     cout << "\n\n";

     cout << "\n \t\t\t 1. Add    Records";

     cout << "\n \t\t\t 2. List   Records";

     cout << "\n \t\t\t 3. Modify Records";

     cout << "\n \t\t\t 4. Delete Records";

     cout << "\n \t\t\t 5. Exit   Program";

     cout << "\n\n";

     cout << "\t\t\t Select Your Choice :=> ";

     fflush(stdin);

     choice = getche();

     switch(choice)

     {

      case '1' :

            fseek(fp,0,SEEK_END);

            another ='Y';

            while(another == 'Y' || another == 'y')

            {

                  system("cls");

                cout << "Enter the Firt Name : ";

                cin >> e.first_name;

                cout << "Enter the Last Name : ";

                cin >> e.last_name;

                cout << "Enter the Course    : ";

                cin >> e.course;

                cout << "Enter the Section   : ";

                cin >> e.section;

                fwrite(&e,recsize,1,fp);

                cout << "\n Add Another Record (Y/N) ";

                fflush(stdin);

                another = getchar();

            }

            break;

   case '2':

            system("cls");

           rewind(fp);

           cout << "=== View the Records in the Database ===";

           cout << "\n";

           while (fread(&e,recsize,1,fp) == 1){

           cout << "\n";

           cout <<"\n" << e.first_name << setw(10)  << e.last_name;

           cout << "\n";

           cout <<"\n" <<e.course <<  setw(8)  << e.section;

           }

           cout << "\n\n";

           system("pause");

           break;

   case '3' :

            system("cls");

          another = 'Y';

          while (another == 'Y'|| another == 'y')

          {

              cout << "\n Enter the last name of the student : ";

              cin >> xlast_name;

            rewind(fp);

            while (fread(&e,recsize,1,fp) == 1)

            {

                if (strcmp(e.last_name,xlast_name) == 0)

                {

                cout << "Enter new the Firt Name : ";

                cin >> e.first_name;

                cout << "Enter new the Last Name : ";

                cin >> e.last_name;

                cout << "Enter new the Course    : ";

                cin >> e.course;

                cout << "Enter new the Section   : ";

                cin >> e.section;

                fseek(fp, - recsize, SEEK_CUR);

                fwrite(&e,recsize,1,fp);

                break;

                }

                else

                cout<<"record not found";

            }

            cout << "\n Modify Another Record (Y/N) ";

                fflush(stdin);

                another = getchar();

            }

            break;

     case '4':

       system("cls");

           another = 'Y';

          while (another == 'Y'|| another == 'y')

          {

              cout << "\n Enter the last name of the student to delete : ";

              cin >> xlast_name;

              ft = fopen("temp.dat", "wb");

              rewind(fp);

              while (fread (&e, recsize,1,fp) == 1)

                 if (strcmp(e.last_name,xlast_name) != 0)

                {

                    fwrite(&e,recsize,1,ft);

                }

                fclose(fp);

                fclose(ft);

                remove("users.txt");

                rename("temp.dat","users.txt");

                fp=fopen("users.txt","rb+");

                cout << "\n Delete Another Record (Y/N) ";

                fflush(stdin);

                another = getchar();

              }

              break;

              case '5':

              fclose(fp);

              cout << "\n\n";

              cout << "\t\t     THANK YOU FOR USING THIS SOFTWARE";

              cout << "\n\n";

              exit(0);

          }

     }

system("pause");

return 0;

}