#include<stdio.h>

#include<conio.h>

#include<stdlib.h>

#include<string.h>

#include <windows.h>

void gotoxy(short int col,short int row);

struct account

};struct account ac;

struct existg_hostel

};

struct existg_hostel eh[20];

struct new_entry

};

struct new_entry nh[20];

int choice,rol,i=0,flag=0,sd,count=0;

char ch,nam[20];

FILE *fp;

int main()

{while(1)

{

system("cls");

gotoxy(28,6);

printf("HOSTEL MANAGEMENT SYSTEM");

gotoxy(25,10);

printf("--->>Press '1' for New Entry\n");

gotoxy(25,12);

printf("--->>Press '2' for Searching Existing Record\n");

gotoxy(25,14);

printf("--->>Press '3' for Deleting Record\n");

gotoxy(25,16);

printf("--->>Press '4' for Modifying Record\n");

gotoxy(25,18);

printf("--->>Press '5' to Exit\n");

gotoxy(25,20);

printf("Choice you Entered is:");

scanf("%d",&choice);

switch(choice)

{

case 1:

//new entry

system("cls");

fp=fopen("hostel_data.txt","a+");

char another='y';

int j=0;

while(fscanf(fp,"%d%s%s%s%d%d%d%d",&eh[i].roll,eh[i].name,eh[i].deptt,eh[i].permntadd,&eh[i].roomno,&eh[i].ac.messchrges,&eh[i].ac.fine,&eh[i].ac.total)!=EOF)

{

printf("%d",count);

count++;

}

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

{

for(j=0;j<1;j++)

{

gotoxy(25,10);

printf("Enter Name(use underscore for spaces)\t");

scanf("%s",nh[j].name);

gotoxy(25,12);

printf("Enter Department\t");

scanf("%s",nh[j].deptt);

gotoxy(25,14);

printf("Enter Permanent Address\t");

scanf("%s",nh[j].permntadd);

gotoxy(25,16);

printf("Security amount rs.2500\n");

gotoxy(25,18);

printf("Security Deposited(Press 1/0 ::Y/N)\t");

scanf("%d",&sd);

switch(sd)

{

case 1:

rewind(fp);

nh[j].roll=count+1;

nh[j].roomno=count+279;

gotoxy(25,20);

printf("Allotment Details:");

gotoxy(25,22);

printf("Roll Number %d\n",nh[j].roll);

gotoxy(25,24);

printf("Room Number %d\n",nh[j].roomno);

nh[j].ac.messchrges=0;

nh[j].ac.fine=0;

nh[j].ac.total=nh[j].ac.messchrges+nh[j].ac.fine;

fprintf(fp,"%d\t%s\t%s\t%s\t%d\t%d\t%d\t%d\n",nh[j].roll,nh[j].name,nh[j].deptt,nh[j].permntadd,nh[j].roomno,nh[j].ac.messchrges,nh[j].ac.fine,nh[j].ac.total);

gotoxy(25,26);

printf("Entry Successfully Done!!!!\n");

gotoxy(25,28);

printf("%d",j);

break;

case 0:

gotoxy(25,20);

printf("Security Pending");

gotoxy(25,22);

printf("Sorry!Roll Number and Room Number will be allotted on Receiving Security");

gotoxy(25,24);

break;

}

}

gotoxy(25,30);

printf("want to Add Another Record!\t");

fflush(stdin);

scanf("%c",&another);

system("cls");

}

fclose(fp);

printf("Press any key to Return to Main Menu");

getch();

break ;

case 2:

//searching entry

system("cls");

fp=fopen("hostel_data.txt","r");

if(fp==NULL)

exit(0);

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

{gotoxy(25,10);

printf("Enter Roll Number:\t");

scanf("%d",&rol);

rewind(fp);

while(fscanf(fp,"%d%s%s%s%d%d%d%d",&eh[i].roll,eh[i].name,eh[i].deptt,eh[i].permntadd,&eh[i].roomno,&eh[i].ac.messchrges,&eh[i].ac.fine,&eh[i].ac.total)!=EOF)

{ if(rol==eh[i].roll)

{ gotoxy(25,12);

printf("%d\t%s\t%s\t%s\t%d\t%d\t%d\t%d\n",eh[i].roll,eh[i].name,eh[i].deptt,eh[i].permntadd,eh[i].roomno,eh[i].ac.messchrges,eh[i].ac.fine,eh[i].ac.total);

}

}

gotoxy(25,14);

fflush(stdin);

printf("Want to Search Another Entry(press y/n):\t");

scanf("%c",&another);

system("cls");

}

gotoxy(25,16);

printf("Press any key to Return to Main Menu");

getch();

break;

case 3:

//Delete entry

system("cls");

FILE *fn;

gotoxy(25,10);

printf("Enter roll no.:\t");

scanf("%d",&rol);

fp=fopen("hostel_data.txt","r");

fn=fopen("hostel_data2.txt","w");

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

{

while(fscanf(fp,"%d%s%s%s%d%d%d%d",&eh[i].roll,eh[i].name,eh[i].deptt,eh[i].permntadd,&eh[i].roomno,&eh[i].ac.messchrges,&eh[i].ac.fine,&eh[i].ac.total)!=EOF)

{ if(eh[i].roll==rol)

flag=1;

if(eh[i].roll!=rol)

{fprintf(fn,"%d\t%s\t%s\t%s\t%d\t%d\t%d\t%d\n",eh[i].roll,eh[i].name,eh[i].deptt,eh[i].permntadd,eh[i].roomno,eh[i].ac.messchrges,eh[i].ac.fine,eh[i].ac.total);

}

}

fclose( fp);

fclose( fn);

remove( "hostel_data.txt");

rename( "hostel_data2.txt", "hostel_data.txt");

gotoxy(25,12);

if(flag==1)

printf("Entry Successfully Deleted");

if(flag==0)

printf("Not in Record!");

gotoxy(25,14);

printf("Want to Delete Another Record(press y/n):\t");

fflush(stdin);

scanf("%c",&another);

getch();

system("cls");

}

gotoxy(25,16);

printf("Press any key to Return to Main Menu");

getch();

break;

case 4:

//modify entry

system("cls");

FILE *f;

gotoxy(25,10);

printf("Enter Roll number whose Record is to be modified\t");

scanf("%d",&rol);

fp=fopen("hostel_data.txt","r");

f=fopen("hostel_data3.txt","w");

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

{

while(fscanf(fp,"%d%s%s%s%d%d%d%d",&eh[i].roll,eh[i].name,eh[i].deptt,eh[i].permntadd,&eh[i].roomno,&eh[i].ac.messchrges,&eh[i].ac.fine,&eh[i].ac.total)!=EOF)

{

if(eh[i].roll==rol)

{

gotoxy(25,12);

printf("Enter Mess charges");

scanf("%d",&eh[i].ac.messchrges);

gotoxy(25,14);

printf("Enter Fine");

scanf("%d",&eh[i].ac.fine);

eh[i].ac.total=eh[i].ac.messchrges+eh[i].ac.fine;

}

fprintf(f,"%d\t%s\t%s\t%s\t%d\t%d\t%d\t%d\n",eh[i].roll,eh[i].name,eh[i].deptt,eh[i].permntadd,eh[i].roomno,eh[i].ac.messchrges,eh[i].ac.fine,eh[i].ac.total);

}

fclose(fp);

fclose(f);

remove( "hostel_data.txt");

rename( "hostel_data3.txt", "hostel_data.txt");

gotoxy(25,16);

printf("Entry Successfully Modified");

gotoxy(25,18);

printf("Want to Modify Another Record(press y/n):\t");

scanf("%c",&another);

system("cls");

}

gotoxy(25,20);

printf("Press any key to Return to Main Menu");

getch();

break;

case 5:

{exit(0);

}

} }

getch();

}

void gotoxy(short int x, short int y) {

COORD pos = {x, y};

SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE), pos);

}