Source Code
#include<stdio.h>
#include<string.h>
#include<stdlib.h>
#include<conio.h>
#include<windows.h>
struct dat//for date(month and day
{
int d,m;//d=day,m=month
};
int clscanf();//check class (1-12)
struct student
{
struct dat dt;
float f,fine,tot,adv,due;//f=fee
char n[50];
int r,c;//roll and class
} stud,s;
struct teacher
{
struct dat dt;
char n[50];
float sal,adv,tot;
int id,no;
} tech,t;
int chkdat(int,int);// for checking date
void addrec(int);//for adding records
void modrec(int);//for modifying records
void searchrec(int);//for searching records
void delrec(int);//for deleting records
void salary(int);//for the calculation of salary of teacher and staff
FILE *fs,*ft;//file declaration
int mm,dd;//mm=month, dd=day
void ext();//for exiting
void main(void)
{
int i,j,k;
for(i=0; i<80; i++)
{
printf("\xdb");
}
printf("\n");
for(i=0; i<80; i++)
{
printf("\xdb");
}
system("color 9a");
printf(" \t_______________________________________________________\n");
printf("\t| |\n");
printf("\t|**WELCOME TO C PROGRAM SCHOOL BILLING SYSTEM PROJECT|**\n");
printf("\n\t| |\n");
printf("\t ______________________________________________________\n");
printf("\t| DEVELOPED BY CODE WITH C TEAM |\n");
printf(" \t________________________________________________________\n");
printf("\t| ***************************************** |\n");
printf("\t| ***************************************** |\n");
printf(" \t_______________________________________________________\n");
printf("\n\tPLEASE ENTER ANY KEY TO CONTINUE");
for(i=0; i<5; i++)
{
printf(".");
Sleep(500);//after printing one . another comes after 0.5 seconds
}
getch();
system("cls");//clears the screen
printf("\n");
for(i=0; i<80; i++)
{
printf("\xdb");
}
system("color 6b");
printf("\n\n\t** WELCOME TO C PROGRAM SCHOOL BILLING SYSTEM PROJECT **\n\n\n");
for(i=0; i<80; i++)
{
printf("\xdb");
}
printf("\nPLEASE ENTER ANY KEY TO START\n");
for(i=0; i<5; i++)
{
printf(".");
Sleep(500);
}
fflush(stdin);
getch();
system("cls");
system("color 0f");//1st is for back ground color and second is for text color
printf("\n\t\tPLEASE ENTER CURRENT DATE\nmm dd\n ");
scanf("%d%d",&mm,&dd);
mm=chkdat(mm,dd);
start();
}
void start()
{
int i,j;//j is for selection of account type
system("cls");
printf("\n\t\tPLEASE ENTER ACCOUNT TYPE");
printf("\n\t\t1:: Student");
printf("\n\t\t2:: Teachers and Staffs");
printf("\n\t\t3:: Exit");
printf("\n\t\tAccount type choice ");
fflush(stdin);
scanf("%d",&j);
switch (j)
{
case 3:
ext();
case 1:
{
system("cls");
printf("\n\t\tPLEASE ENTER THE CHOICE");
printf("\n\t\t1:: Add record");
printf("\n\t\t2:: Search record");
printf("\n\t\t3:: Modify record");
printf("\n\t\t4:: Delete record");
printf("\n\t\t5:: Calculate fee");
printf("\n\t\t6:: Exit");
printf("\n\n Enter choice ");
fflush(stdin);
scanf("%d",&i);
switch (i)
{
case 1:
addrec(j);//function call
start();//function call
case 2:
searchrec(j);
start();
case 3:
modrec(j);
start();
case 4:
delrec(j);
start();
case 5:
fee(mm);
start();
case 6:
ext();
default :
{
printf("\n\n\tInvalid entry!!");
printf("\n\nTo Account Type\n\n\t");
system("pause");
start();
}
}
}
case 2:
{
system("cls");
printf("\n\t\tPLEASE ENTER THE CHOICE");
printf("\n\t\t1:: Add record");
printf("\n\t\t2:: Search record");
printf("\n\t\t3:: Modify record");
printf("\n\t\t4:: Delete record");
printf("\n\t\t5:: Calculate Salary");
printf("\n\t\t6:: Exit");
printf("\n\n Enter choice ");
fflush(stdin);
scanf("%d",&i);
switch (i)
{
case 1:
addrec(j);
start();
case 2:
searchrec(j);
start();
case 3:
modrec(j);
start();
case 4:
delrec(j);
case 5:
salary(mm);
start();
case 6:
ext();
default :
{
printf("\n\n\tInvalid entry!!");
printf("\n\nTo Account Type\n\n\t");
system("pause");
start();
}
}
}
default :
{
printf("\n\n\tInvalid entry!!");
printf("\n\nTo Account Type\n\n\t");
system("pause");
start();
}
}
}
void addrec(int j)
{
int dif,cdat,ddat,month=0;//cdat=month till which fee is cleared
float ff;//used in calculatin of fee of different class
char c='y';
system("cls");
printf("\n\t******************************************************************");
printf("\n\t *************************** ");
printf("\n\t********************* ADD RECORD *******************");
printf("\n\t *************************** ");
printf("\n\t******************************************************************");
if (j==1)
{
while(c=='y'||c=='Y')
{
int a=1;
printf("\n\nEnter the name of student: ");
fflush(stdin);
scanf("%[^\n]",stud.n);
printf("\nEnter the class: ");
fflush(stdin);
stud.c=clscanf();
printf("\nEnter the Roll No.:");
fflush(stdin);
scanf("%2d",&stud.r);
printf("\nEnter month and day till which fee is paid:");
fflush(stdin);
scanf("%2d%2d",&cdat,&ddat);
cdat=chkdat(cdat,ddat);
stud.dt.m=cdat;
ff=stud.c/10.0;
stud.f=1000*(1+ff);//fee of different classes
dif=mm-stud.dt.m;//months of fee left to be paid
stud.fine=(dif*stud.f)*1/100;
stud.due=(dif)*stud.f;//fees left to be paid
if(dif==1)
{
stud.tot=stud.f;
stud.fine=0;
}
else
{
stud.tot=stud.fine+stud.due;
}//for calculation of total fee
fs=fopen("student","ab+");//opening a binary file in apend mode
fwrite(&stud,sizeof(stud),1,fs);
fclose(fs);
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
getch();
}
if (j==2)
{
while(c=='y'||c=='Y')
{
int a=1;
printf("\n\nEnter name of teacher/staff:" );
fflush(stdin);
scanf("%[^\n]",tech.n);
printf("\nEnter teacher/staff id: ");
fflush(stdin);
scanf("%d",&tech.id);
printf("\nEnter number of class/shift per month:: ");
scanf("%d",&tech.no);
fflush(stdin);
printf("\nEnter month and day till which salary is paid::");
scanf("%d %d",&tech.dt.m,&tech.dt.d);
cdat=chkdat(cdat,ddat);
tech.dt.m=cdat;
tech.sal=tech.no*500;
tech.adv=(tech.dt.m-mm-1)*tech.sal;
if (tech.adv<0) tech.adv=0;
tech.tot=tech.sal;
ft=fopen("teacher","ab+");
fwrite(&tech,sizeof(tech),1,ft);
fclose(ft);
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
fflush(stdin);
printf("\n\n");
system("pause");
}
}
void searchrec(int j)
{
char name[50],namet[50];
int a=1,choice;
char c='y';
if (j==1)
{
while(c=='y'||c=='Y')
{
int a=1;
system("cls");
printf("\n\t******************************************************************");
printf("\n\t *************************** ");
printf("\n\t********************* SEARCH RECORD *******************");
printf("\n\t *************************** ");
printf("\n\t******************************************************************");
printf("\n\n\t\tPLEASE CHOOSE SEARCH TYPE::");
printf("\n\n\t\t1::Search by name::");
printf("\n\n\t\t2::Search by class::");
printf("\n\n\t\t3::Search by rollno::");
printf("\n\n\t\t4::Exit");
printf("\n\n\t\t::Enter your choice:: ");
fflush(stdin);
scanf("%d",&choice);
if (choice==1)
{
a=1;
printf("\n\nEnter name of student to search: ");
fflush(stdin);
scanf("%[^\n]",name);
fs=fopen("student","rb");
while(fread(&stud,sizeof(stud),1,fs)==1)
{
if (strcmpi(name,stud.n)==0)
{
a=0;
printf("\nname = %s",stud.n);
printf("\nclass = %d",stud.c);
printf("\nroll no = %d",stud.r);
printf("\nmonthy fee =%.2f",stud.f);
printf("\nlast fee paid in month =%2d",stud.dt.m);
printf("\n due=%.2f",stud.due);
printf("\n fine=%.2f",stud.fine);
printf("\n total=%.2f\n\n",stud.tot);
}
}
if (a==1)
printf("\n\nRECORD NOT FOUND");
printf("\n\n");
system("pause");
fflush(stdin);
fclose(fs);
}
else if (choice==2)
{
int cl;
a=1;
printf("\n\nEnter class of student to search: ");
fflush(stdin);
cl=clscanf();
fs=fopen("student","rb");
while(fread(&stud,sizeof(stud),1,fs)==1)
{
if (stud.c==cl)
{
a=0;
printf("\nname = %s",stud.n);
printf("\nclass = %d",stud.c);
printf("\nroll no = %d",stud.r);
printf("\nmonthy fee =%.2f",stud.f);
printf("\nlast fee paid in month =%2d",stud.dt.m);
printf("\n due=%.2f",stud.due);
printf("\n fine=%.2f",stud.fine);
printf("\n total=%.2f",stud.tot);
}
}
if (a==1)
printf("\n\nRECORD NOT FOUND");
printf("\n\n");
system("pause");
fflush(stdin);
fclose(fs);
}
else if (choice==3)
{
int rll;
a=1;
printf("\n\nEnter roll of student to search: ");
fflush(stdin);
rll=clscanf();
fs=fopen("student","rb");
while(fread(&stud,sizeof(stud),1,fs)==1)
{
if (strcmpi(name,stud.n)==0)
{
a=0;
printf("\nname = %s",stud.n);
printf("\nclass = %d",stud.c);
printf("\nroll no = %d",stud.r);
printf("\nmonthy fee =%.2f",stud.f);
printf("\nlast fee paid in month =%2d",stud.dt.m);
printf("\n due=%.2f",stud.due);
printf("\n fine=%.2f",stud.fine);
printf("\n total=%.2f",stud.tot);
}
}
if (a==1)
printf("\n\nRECORD NOT FOUND");
printf("\n\n");
system("pause");
fflush(stdin);
fclose(fs);
}
else if(choice==4)
{
ext();
}
else
{
printf("\n\n\n\t\tINVALID ENTRY!!!!\n\n\t\t");
system("pause");
searchrec(1);
}
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
getch();
}
if (j==2)
{
while(c=='y'||c=='Y')
{
int a=1;
printf("\n\nname of teacher/staff to search: ");
fflush(stdin);
scanf("%[^\n]",namet);
ft=fopen("teacher","rb");
while(fread(&tech,sizeof(tech),1,ft)==1)
{
if (strcmp(namet,tech.n)==0)
{
a=0;
printf("\nname = %s",tech.n);
printf("\nteacher/staff id = %d",tech.id);
printf("\nmonth till when salary is paid =%d",tech.dt.m);
printf("\nmonthy salary = %.2f",tech.sal);
printf("\nadvance paid = %.2f",tech.adv);
}
}
if (a==1)
printf("\n\nRECORD NOT FOUND");
printf("\n\n");
system("pause");
fflush(stdin);
fclose(ft);
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
getch();
}
}
void modrec(int j)
{
char name[50];
int a=1,choice,cl,rolno;
char c='y';
if (j==1)
{
while(c=='y'||c=='Y')
{
system("cls");
printf("\n\t******************************************************************");
printf("\n\t *************************** ");
printf("\n\t********************* MODIFY RECORD *******************");
printf("\n\t *************************** ");
printf("\n\t******************************************************************");
printf("\n\n\t\tPLEASE CHOOSE MODIFY TYPE::");
printf("\n\n\t\t1::Modify by name::");
printf("\n\n\t\t2::Modify by name &class::");
printf("\n\n\t\t3::Modify by name,class & rollno::");
printf("\n\n\t\t4::Exit");
printf("\n\n\t\t::Enter your choice:: ");
fflush(stdin);
scanf("%d",&choice);
if (choice==1)
{
int a=0;
printf("\n\nenter name of student to modify: ");
fflush(stdin);
scanf("%[^\n]",name);
fs=fopen("student","rb+");
while(fread(&stud,sizeof(stud),1,fs)==1)
{
a=1;
if (strcmpi(name,stud.n)==0)
{
a=0;
printf("\nenter new name of student: ");
fflush(stdin);
scanf("%[^\n]",stud.n);
printf("\nenter new class of student: ");
fflush(stdin);
stud.c=clscanf();
printf("\nenter new roll of student: ");
fflush(stdin);
scanf("%d",&stud.r);
fseek(fs,-sizeof(stud),SEEK_CUR);
fwrite(&stud,sizeof(stud),1,fs);
fclose(fs);
}
}
if (a==1)
printf("\n\nRECORDS NOT FOUND");
else
printf("\n\nRECORDS SUCCESSFULLY MODIFIED");
printf("\n\n");
system("pause");
}
else if (choice==2)
{
int a=0;
printf("\n\nenter name of student to modify: ");
fflush(stdin);
scanf("%[^\n]",name);
printf("\n\nenter class of student to modify: ");
fflush(stdin);
cl=clscanf();
fs=fopen("student","rb+");
while(fread(&stud,sizeof(stud),1,fs)==1)
{
a=1;
if (strcmpi(name,stud.n)==0 && cl==stud.c)
{
a=0;
printf("\nenter new name of student: ");
fflush(stdin);
scanf("%[^\n]",stud.n);
printf("\nenter new class of student: ");
fflush(stdin);
stud.c=clscanf();
printf("\nenter new roll of student: ");
fflush(stdin);
scanf("%d",&stud.r);
fseek(fs,-sizeof(stud),SEEK_CUR);
fwrite(&stud,sizeof(stud),1,fs);
fclose(fs);
}
}
if (a==1)
printf("\n\nRECORDS NOT FOUND");
else
printf("\n\nRECORDS SUCCESSFULLY MODIFIED");
printf("\n\n");
system("pause");
}
else if (choice==3)
{
int a=0;
printf("\n\nenter name of student to modify: ");
fflush(stdin);
scanf("%[^\n]",name);
printf("\n\nenter class of student to modify: ");
fflush(stdin);
cl=clscanf();
printf("\n\nenter roll of student to modify: ");
fflush(stdin);
scanf("%d",&rolno);
fs=fopen("student","rb+");
while(fread(&stud,sizeof(stud),1,fs)==1)
{
a=1;
if (strcmpi(name,stud.n)==0 && cl==stud.c &&rolno==stud.r)
{
a=0;
printf("\nenter new name of student: ");
fflush(stdin);
scanf("%[^\n]",stud.n);
printf("\nenter new class of student: ");
fflush(stdin);
stud.c=clscanf();
printf("\nenter new roll of student: ");
fflush(stdin);
scanf("%d",&stud.r);
fseek(fs,-sizeof(stud),SEEK_CUR);
fwrite(&stud,sizeof(stud),1,fs);
fclose(fs);
}
}
if (a==1)
printf("\n\nRECORDS NOT FOUND");
else
printf("\n\nRECORDS SUCCESSFULLY MODIFIED");
printf("\n\n");
system("pause");
}
else if (choice==4) ext();
else
{
printf("\n\n\n\t\tINVALID ENTRY!!!!\n\n\t\t");
system("pause");
modrec(1);
}
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
getch();
}
if (j==2)
{
while(c=='y'||c=='Y')
{
int a=1;
printf("enter name of teacher to modify: ");
fflush(stdin);
scanf("%[^\n]",name);
ft=fopen("teacher","rb+");
while(fread(&tech,sizeof(tech),1,ft)==1)
{
if (strcmpi(name,tech.n)==0)
{
a=0;
printf("\nenter new name of teacher: ");
fflush(stdin);
scanf("%[^\n]",tech.n);
printf("\nenter new id of teacher: ");
fflush(stdin);
scanf("%d",&tech.id);
fseek(ft,-sizeof(tech),SEEK_CUR);
fwrite(&tech,sizeof(tech),1,ft);
fclose(ft);
}
}
if (a==1)
printf("\n\nRECORD NOT FOUND");
else
printf("\n\nRECORD SUCCESSFULLY MODIFIED");
printf("\n\n");
system("pause");
fflush(stdin);
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
getch();
}
}
void delrec(int j)
{
system("cls");
printf("\n\t******************************************************************");
printf("\n\t *************************** ");
printf("\n\t********************* DELETE RECORD *******************");
printf("\n\t *************************** ");
printf("\n\t******************************************************************");
FILE *temp,*t1;
int a=1;
char name[50],c='y';
if (j==1)
{
while(c=='y'||c=='Y')
{
int a=1;
printf("\n\nenter name of student to delete: ");
fflush(stdin);
scanf("%[^\n]",name);
fs=fopen("student","rb");
temp=fopen("tempfile","wb");//opening of temporary file for deleting process
while (fread(&stud,sizeof(stud),1,fs)==1)
{
if (strcmp(stud.n,name)==0)
{
a=0;
continue;
}
else
{
fwrite(&stud,sizeof(stud),1,temp);
}
}
if (a==1)
printf("\n\nRECORD NOT FOUND");
else
printf("\n\nRECORD SUCCESSFULLY DELETED");
printf("\n\n");
system("pause");
fflush(stdin);
fclose(fs);
fclose(temp);
system("del student");/*all data except the data to be
deleted in student were 1st moved to temp and data in student
was deleted*/
system("ren tempfile, student");//renaming temp to student
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
getch();
}
if (j==2)
{
a=1;
char namet[50];
while(c=='y'||c=='Y')
{
printf("\n\nEnter name of teacher to delete record: ");
fflush(stdin);
scanf("%[^\n]",namet);
ft=fopen("teacher","rb");
t1=fopen("tempfile1","wb");
while (fread(&tech,sizeof(tech),1,ft)==1)
{
if (strcmp(tech.n,namet)==0)
{
a=0;
continue;
}
else
{
fwrite(&tech,sizeof(tech),1,t1);
}
}
if (a==1)
printf("\n\nRECORD NOT FOUND");
else
printf("\n\nRECORD SUCCESSFULLY DELETED");
printf("\n\n");
system("pause");
fflush(stdin);
fclose(ft);
fclose(t1);
system("del teacher");
system("ren tempfile1, teacher");
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
getch();
}
}
void salary(int mm)
{
system("cls");
printf("\n\t******************************************************************");
printf("\n\t *************************** ");
printf("\n\t********************* SALARY *******************");
printf("\n\t *************************** ");
printf("\n\t******************************************************************");
FILE *f,*t;
int a=1,day;
char name[50],c='y';
int month,dif,id;
while(c=='y'||c=='Y')
{
int a=1;
fflush(stdin);
printf("\n\nEnter name:: ");
scanf("%[^\n]",name);
printf("\n\nEnter ID:: ");
scanf("%d",&id);
f=fopen("teacher","rb+");
t=fopen("te","wb+");
while(fread(&tech,sizeof(tech),1,f)==1)//file opened
{
if(strcmp(tech.n,name)==0 )//name entered is compared to the existing name in file
{
float lsal;
a=0;
printf("\n\nEnter the month till which salary is to be paid:: ");
fflush(stdin);
scanf("%d",&month);
month=chkdat(month,day);
tech.adv=(month-mm-1)*tech.sal;
if (tech.adv<0) tech.adv=0;
lsal=mm-tech.dt.m;//months of salary left to be paid
if(lsal<0) lsal=0;
tech.tot=tech.adv+tech.sal*(1+lsal);
if(month==tech.dt.m) tech.tot=0;
printf("\nmonthy salary left to be paid:: %.2f",lsal);
printf("\ntotal :: %.2f",tech.tot);
printf("\nadvance :: %.2f",tech.adv);
tech.dt.m=month;
fwrite(&tech,sizeof(tech),1,t);
fclose(f);
fclose(t);
if (a==1)
printf("\n\nRECORD NOT FOUND");
printf("\n\n");
system("pause");
fflush(stdin);
system("del teacher");
system("ren te, teacher");
}
}
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
getch();
}
void fee(int mm)
{
system("cls");
printf("\n\t******************************************************************");
printf("\n\t *************************** ");
printf("\n\t********************* FEE *******************");
printf("\n\t *************************** ");
printf("\n\t******************************************************************");
FILE *f,*t;
int a=0;
char name[50],c='y';
int clas, roll,month,dif;
while(c=='y'||c=='Y')
{
int a=1,day=0;
fflush(stdin);
printf("\n\nEnter name:: ");
scanf("%[^\n]",name);
printf("\n\nEnter class:: ");
fflush(stdin);
clas=clscanf();
printf("\n\nEnter roll:: ");
fflush(stdin);
scanf("%d",&roll);
f=fopen("student","rb+");
t=fopen("te","wb");
while(fread(&stud,sizeof(stud),1,f)==1)
{
if(strcmp(stud.n,name)==0 && clas==stud.c && roll==stud.r)
{
a=0;
printf("\n\nEnter the month till which fee to be paid:: ");
fflush(stdin);
scanf("%d",&month);
month=chkdat(month,day);
dif=mm-stud.dt.m;
stud.fine=(dif*stud.f)*0.01;
stud.due=(dif)*stud.f;
if (stud.fine<0) stud.fine=0;
if (stud.due<0) stud.due=0;
if (stud.tot<0) stud.tot=0;
stud.tot=stud.fine+stud.due+stud.adv;
printf("\nfine :: %.2f",stud.fine);
printf("\ndue :: %.2f",stud.due);
printf("\ntotal :: %.2f",stud.tot);
printf("\nadvance :: %.2f",stud.adv);
stud.dt.m=month;
stud.tot=0;
stud.fine=0;
stud.due=0;
fwrite(&stud,sizeof(stud),1,t);
}
}
if (a==1)
printf("\n\nRECORD NOT FOUND");
printf("\n\n");
system("pause");
fflush(stdin);
fclose(f);
fclose(t);
system("del student");
system("ren te, student");
printf("\n\nDo you want to continue with the process(press y or Y");
fflush(stdin);
c=getch();
}
getch();
}
void ext()
{
int i;
system("color 0c");
printf("\n\n\t\t Thank you for using C Program School Billing System Project\n\n");
system("pause");
system("cls");
printf("\n\n\t\t\t Exiting\n\n");
for(i=1; i<=80; i++)
{
Sleep(50);
printf("*");
}
exit(0);
}
int chkdat(int mnt,int dnt)
{
int mon,day;
if (mnt>12 || mnt<1 || dnt<1 || dnt>32)
{
MessageBox(0,"Invalid Date!\nEnter Again","Error!",0);
fflush(stdin);
scanf("%d%d",&mon,&day);
mon=chkdat(mon,day);
}
else
return (mnt);
}
int clscanf()
{
int mnt,mon;
fflush(stdin);
scanf("%d",&mnt);
if (mnt>12 ||mnt<1)
{
MessageBox(0,"Invalid Class!\nEnter Class","Error!!",0);
fflush(stdin);
mon=clscanf();
}
else
return mnt;
}
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