plz correct this program

[nisha]

A#include<fstream.h>
#include<conio.h>
#include<stdio.h>
#include<ctype.h>A
#include<graphics.h>
#include<process.h>
fstream dat,dat1;
float gsal,pf;
char flname[]={"dsb"};
class emptax
{
public:
char
no[10],fname[20],lname[20],desig[20],bg[5],em[80],lnam[30],rnam[25],cnam[30],snam[30];
long int ph,pin,emp;
float
bsal,da,hra,cca,msal,lo,sd,tit,ti,tr,tf,tp,pt,tpt, ttp,nt,ec,lic,nsc,pm,ot,not,others;
void get_nam();
void dsp_nam();
void tax_cal();
void fl_write();
void fl_read();
void fl_delete();
void fl_insert();

}obj,obj1;

void emptax::get_nam()
{ cout<<"\nEmployee Code:";cin>>emp;
cout<<"First name:"; gets(fname);
cout<<"Last name:"; gets(lname);
cout<<"Designation:"; gets(desig);
cout<<"House no.:"; cin>>no;
cout<<"Location:"; gets(lnam);
cout<<"Region:"; gets(rnam);
cout<<"City:"; gets(cnam);
cout<<"State:"; gets(snam);
cout<<"Pincode:"; cin>>pin;
cout<<"Phone (resi):"; cin>>ph;

cout<<"\t\t"<<"\n\nENTER YOUR MONTHLY SALARY DETAILS\n";
cout<<"Basic salary per month:"; cin>>bsal;
cout<<"Enter your CCA:"; cin>>cca;
cout<<"DA:"; cin>>da;
cout<<"Lone Installments:"; cin>>lo;
cout<<" HRA:"; cin>>hra;
// cout<<"CCA:"; cin>>cca;
cout<<"other income:"; cin>>others;
cout<<"\nLIC premium:"; cin>>lic;
cout<<"NSC premium:"; cin>>nsc;
// cout<<"Income tax paid till last month @:"; cin>>pt;
cout<<"\n\nDonation for social cause:\n";
cout<<"Donation for PM funds:"; cin>>pm;
cout<<"Doantion for other trusts:"; cin>>ot;
cout<<"Tution fees:"; cin>>tf;
}
void emptax::dsp_nam()
{
clrscr();
cout<<"******************************!PERSONAL
DETAILS!********************************";
cout<<"\nName:\t\t"<<fname<<" "<<lname<<endl;
cout<<"\nAddress:\t";
cout<<no<<" "<<lnam<<",\n\t\t"<<rnam<<",\n\t\t"<<cnam
<<",\n\t\t"<<snam<<"\n\t\t"<<pin<<"\nPhone(resi):\ t"<<ph;

cout<<"\n\n***********************$MONTHLY/YEARLY SALARY
DETAILS$**************************";
cout<<"\n"<<"\t\t\t\tMONTHLY\t\t\tYEARLY";
cout<<"\n\nBasic salaray:\t\t\t"<<bsal<<"\t\t"<<bsal*12;
cout<<"\nCity Compancatory Allowence:\t"<<cca<<"\t"<<cca*12;
cout<<"\nDearness Allowence:\t\t"<<da<<"\t\t"<<da*12;
cout<<"\nHouse Rent Allowence:\t\t"<<hra<<"\t\t"<<hra*12;
cout<<"\nProvidend Fund:\t\t\t"<<pf<<"\t\t"<<pf*12;
cout<<"\nLone Installments:\t\t"<<lo<<"\t\t"<<lo*12;
cout<<"\n$GROSS SALARY$:\t\t\t"<<msal<<"\t\t"<<msal*12;
getch();

cout<<"\n\n******************************!INCOME TAX
DETAILS!******************************";
cout<<"\nGross Salary:\t\t\t"<<msal*12;
cout<<"\nStandard Deduction:\t\t"<<sd;
cout<<"\nTaxable Income:\t\t\t"<<ti;
cout<<"\nTotal Tax Payable:\t\t"<<tit;
cout<<"\nNet Tax Rebte:\t\t\t"<<tr;
cout<<"\Education Cess:\t\t\t"<<ec;
// cout<<"\nTotal Tax Paid:\t\t\t"<<tpt;
cout<<"\nNet Tax Still To Be Paid:\t"<<nt;
}

void emptax::tax_cal()
{
da=(bsal*11)/100;
hra=(bsal*15)/100;

msal=bsal+da+hra+cca+others;
gsal=(msal*12);

pf=(((bsal+da)*12)/100);

sd=nsc+pf+lic+tf ;
not=(ot*50)/100;

/* if(gsal<150000 && sd>30000)
{
sd=30000;
}
else
if(gsal>150000 && gsal<300000 && sd>25000)
{
sd=25000;
}
else
if(gsal>300000 && gsal<500000 && sd>20000)
{
sd=20000;
}
else
if(gsal>500000)
{
sd=0;
}

*/
ti=(gsal-(sd+pm+not));
if(ti<100000)
{
tit=0;
}
else
if(ti>100001 && ti<150000)
{
tit=((ti-50000)*10)/100;
}
else
if(ti>150001 && ti<250000)
{
tit=(((ti-150000)*20)/100);
}
else
if(ti>250001)
{
tit=(((ti-250000)*30)/100);
}
tr=(lic+nsc+(pf*12));
if(tr>100000)
{
tr=100000;
}
else
{
tr=tr;
}

tp=tit-tr;
ec=(2*tp)/100;
ttp=tp+ec;
tpt=pt*11;
nt=ttp-tpt;
if(nt<0)
nt=0;
}

void emptax::fl_write()
{
char ch;
dat.open(flname,ios::binary|ios::app);
do
{
dat1.open(flname,ios::in|ios::binary);
clrscr();
cout<<"\n -/-/-/-/-/-/-/-/-/-/-/-/-/--- Employee's Information
---/-/-/-/-/-/-/-/-/-/-/";
obj1.get_nam();
do
{
if(dat1.fail())
{
break;
}
else
{
dat1.read((char*)&obj,sizeof(emptax));
if(!dat.eof())
{
if(emp==obj1.emp)
{
clrscr();
cout<<"\n\n\n\n\n\n\n\n\n\n\n\t-----Sorry This Record Already
Exists(DUPLICATION NOT ALLOWED)------ ";
getch();
dat.close();
dat1.close();
return;
}
}
}
}while(!dat1.eof());
dat.write((char*)&obj1,sizeof(emptax));
clrscr();
cout<<"\n\n\n\n\n\n\n\n\t\t ----Do You Want To Add More----";
do
{
ch=tolower(getche());
}while(ch!='y' && ch!='n');
}while(ch=='y');
dat.close();
dat1.close();
}

void emptax::fl_read()
{
dat.open(flname,ios::binary|ios::in);
do
{
if(dat.fail())
{
clrscr();
cout<<"\n\n\n\n\n\n\n\n\n\n\n\t\t-----Sorry This File Contain No
Data------ ";
dat.close();
return;
}
else
{
dat.read((char*)&obj,sizeof(emptax));
if(!dat.eof())
{
obj.tax_cal();
obj.dsp_nam();
}
getch();
}
}while(!dat.eof());
cout<<"\n\t\t--------END OF THE DATABASE-----";
getch();
dat.close();
}

void emptax::fl_insert()
{
dat.open(flname,ios::binary|ios::in);
dat1.open("temp.dat",ios::out|ios::binary);
clrscr();
cout<<"\n Enter The Record To Be Inserted ::";
obj1.get_nam();
obj1.tax_cal();
do
{
if(dat.fail())
{
clrscr();
cout<<"\n\n\n\n\n\n\n\n\n\n\n\t\t-----Sorry This File Contain No
Data------ ";
dat.close();
dat1.close();
getch();
return;
}
else
{
dat.read((char*)&obj,sizeof(emptax));
if(emp==obj1.emp)
{ clrscr();
cout<<"\n\n\n\n\n\n\n\n\n\t\t-----This Record Already
Exists-------";
cout<<"\n\n\n\n\t\t-----Unsuccessfull Record Insertion------";
dat1.close();
dat.close();
getch();
return;
}
if(emp obj1.emp)
{
break;
}
if(!dat.eof())
{
dat1.write((char*)&obj,sizeof(emptax));
}
}
}while(!dat.eof());
dat1.write((char*)&obj1,sizeof(emptax));
do
{
if(dat.fail())
{
cout<<" ";
}
else
{
if(!dat.eof())
{
dat1.write((char*)&obj,sizeof(emptax));
}
dat.read((char*)&obj,sizeof(emptax));
}
}while(!dat.eof());
dat.close();
dat1.close();
if((remove(flname)==0)&&(rename("temp.dat",flname) ==0))
{ clrscr();
cout<<"\n\n\n\n\n\n\n\n\n\n\n\t\t--------Record Inserted
Successfully-------";
getch();
}
}

void emptax::fl_delete()
{
int empn;
dat.open(flname,ios::binary|ios::in);
dat1.open("temp.dat",ios::out|ios::binary);
cout<<"\n Enter The Employee Code No.::";
cin>>empn;
clrscr();
do
{
if(dat.fail())
{ cout<<"Unable To Open";
dat.close();
dat1.close();
return;
}
else
{ dat.read((char*)&obj,sizeof(emptax));
if(emp==empn)
{
break;
}
if(!dat.eof())
{
dat1.write((char*)&obj,sizeof(emptax));
}
}
}while(!dat.eof());
if(emp!=empn)
{ clrscr();
cout<<"\n\n\n\n\n\n\n\n\n\n\t\t ------THIS RECORD DOESN'T
EXISTS-----";
getche();
dat.close();
dat1.close();
return;
}
do
{
if(dat.fail())
{ cout<<"----Error Occurred Trminating Function-----";
getch();
dat.close();
dat1.close();
return;
}
else
{ dat.read((char*)&obj,sizeof(emptax));
if(!dat.eof())
{
dat1.write((char*)&obj,sizeof(emptax));
}
}
}while(!dat.eof());
dat.close();
dat1.close();
if((remove(flname)==0)&&(rename("temp.dat",flname) ==0))
{
clrscr();
cout<<"\n\n\n\n\n\n\n\n\n\n\n\t\t--------Record Deleted
Successfully-------";getch();
}
}

void main()
{
textcolor(1);
textbackground(6);
char ch;
do
{
clrscr();
cout<<"Enter ur choice as mentioned";
cout<<"\n Enter Records"
<<"\n View Records"
<<"\n Insert Records"
<<"\n Delete Records"
<<"\n Quit Records\n";
cin>>ch;
switch(ch)
{
case 'e':obj.fl_write();
break;
case 'v':obj.fl_read();
break;
case 'i':obj.fl_insert();
break;
case 'd':obj.fl_delete();
break;
case 'x':exit(0);
break;
default:cout<<"!Wrong choice!";
break;
}
clrscr();
cout<<"\n\n\n\n\n\n\n\n\n\n\n\t\t -----Do You Want To Continue----";
do
{ ch=tolower(getche());
}while(ch!='y' && ch!='n');
}while(ch=='y');
clrscr();
cout<<"\n\n\n\n\n\n\n\n\n\n\n\t\t--------T H A N K Y O U -------";
getch();
}