FEE MANAGEMENT SYSTEM

//Student fee record

#include<stdio.h>

#include<conio.h>

void main()

{

FILE *fp, *ft;

char another, choice;

struct fee

{       int r_no;

    char name[40];

    char add[40];

    char f_name[40];

    char stream[40];

    long int d_fee;

};

struct fee f;

long int amount,flag;

long int total=2000;

long int pending=0;

long int recsize;

char stream[40];

int r_no;

fp=fopen("FEE2.DAT","rb+");

if(fp==NULL)

{

    fp=fopen("FEE2.DAT","wb+");

    if(fp==NULL)

    {

          puts("Cannot open file");

          exit(1);

    }

}

recsize = sizeof(f);

while(1)

{

    clrscr();

    gotoxy(30,10);

    printf("1. Student detail");

    gotoxy(30,12);

    printf("2. Display Record");

    gotoxy(30,14);

    printf("3. deposite fee");

    gotoxy(30,16);

    printf("4. Pending fee");

    gotoxy(30,18);

    printf("5. Delete Record");

    gotoxy(30,20);

    printf("0.Exit");

    gotoxy(30,22);

    printf("Your choice");

    fflush(stdin);

    choice = getche();

    switch(choice)

    {

          case '1':

          fseek(fp,0,SEEK_END);

          another = 'Y';

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

          {

                   printf("\nEnter Roll_no");

                   scanf("%d", &f.r_no);

                   printf("\nEnter Name");

                   scanf(" %s",f.name);

                   printf("\nEnter Address");

                   scanf("%s",f.add);

                   printf("\nEnter Father name");

                   scanf("%s",f.f_name);

                   printf("\nEnter deposited fee");

                   scanf("%ld", &f.d_fee);

                   printf("\nEnter Stream");

                   scanf("%s",f.stream);

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

                   printf("\nCreate another Student Record(Y/N)");

                   fflush(stdin);

                   another = getche();

          }

          break;

          case '2':

          clrscr();

          rewind(fp);

          printf("Roll no\tname\tAddress\tFather name\tStream\tdeposited fee\tTotal amount");

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

                   printf("\n%d\t%s\t%s\t%s\t%s\t%ld\t%ld", f.r_no,f.name, f.add, f.f_name,f.stream, f.d_fee,total);

          getch();

          break;

          case '3':

          another='Y';

          while(another=='Y')

          {

                   printf("\nEnter Roll number to check balance");

                   scanf("%d",&r_no);

                   printf("\nEnter the Stream");

                   scanf("%s",stream);

                   rewind(fp);

                   flag=0;

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

                   {

                             if((f.r_no==r_no)&&(strcmp(f.stream,stream)==0))

                             {

                             if(f.d_fee<=total)

                             {

                                      flag=1;

                                      printf("\nEnter amount to deposite");

                                      scanf("%ld",&amount);

                                      f.d_fee=f.d_fee + amount;

                                      fseek(fp, -recsize, SEEK_CUR);

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

                                      break;

                             }

                             }}

                             if(flag==0)

                             {

                                      printf("sorry !! invalid rollno");

                                      getch();

                             }

                   printf("deposite more amount");

                   fflush(stdin);

                   another=getche();

              }

              break;

          case '4':

          another='Y';

          while(another=='Y')

          {

                   printf("\nEnter roll number to check pending amount");

                   scanf("%d",&r_no);

                   printf("\nEnter the Stream");

                   scanf("%s",stream);

                   rewind(fp);

                   flag=0;

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

                   {

                             flag=1;

                             if((f.r_no==r_no)&&(strcmp(f.stream,stream)==0))

                             {

                                      pending=total-f.d_fee;

                                      printf("\nYour pending amount is %ld",pending);

                                      f.d_fee=f.d_fee+pending;

                                      getch();

                             }

                   }

                   if(flag==0)

                   {

                             printf("Sorry !! Invalid roll number");

                             getch();

                   }

                   fflush(stdin);

                   another=getche();

          }

          break;

          case '5':

          another='Y';

          while(another=='Y')

          {

                   printf("\nEnter roll number to delete");

                   scanf("%d",&r_no);

                   ft = fopen("TEMP.DAT","wb");

                   rewind(fp);

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

                   {

                             if(f.r_no!=r_no)

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

                   }

                   fclose(fp);

                   fclose(ft);

                   remove("FEE2.DAT");

                   rename("TEMP.DAT", "FEE2.DAT");

                   fp=fopen("FEE2.DAT", "rb+");

                   printf("Delete another record(Y/N)");

                   fflush(stdin);

                   another = getche();

          }

          break;

          case '0':

          fclose(fp);

          exit();

    }

}}

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