Hospital Biling System

#include "stdafx.h" 
#include<string>
#include<iostream> 
using namespace std; 
class date 
{ 
private: 
int day; 
int month; 
int year; 
public: 
date(int d=0 ,int m=0,int y=0) 
{ 
day=d; 
month=m; 
year=y; 
cout<<"constructor of date funtion"<<endl; 
} 
~date() 
{ 
cout<<"destructor of date funtion"<<endl; 
} 
int get_d_d() 
{ 
return day; 
} 
int get_d_m() 
{ 
return month; 
}
int get_d_y() 
{ 
return year; 
} 
void set_day(int dd) 
{ 
day=dd; 
} 
void set_month(int mm) 
{ 
month=mm; 
} 
void set_year(int yy) 
{ 
year=yy; 
} 
void invalid_date(int day,int month,int year) 
{ 
cout<<"enter the date"<<endl; 
cin>>day; 
cout<<endl; 
cout<<"The month is:"<<endl; 
cin>>month; 
if(month==1) 
{ 
cout<<"January"<<endl; 
} 
if(month==2) 
{ 
cout<<"FEBUARY"<<endl; 
} 
if(month==3) 
{ 
cout<<"MARCH"<<endl; 
} 
if(month==4) 
{ 
cout<<"APRIL"<<endl; 
} 
if(month==5) 
{ 
cout<<"MAY"<<endl; 
} 
if(month==6) 
{ 
cout<<"June"<<endl; 
} 
if(month==7) 
{ 
cout<<"JULY"<<endl; 
} 
if(month==8) 
{ 
cout<<"AUGUST"<<endl; 
} 
if(month==9) 
{ 
cout<<"SEPTEMBER"<<endl; 
} 
if(month==10) 
{ 
cout<<"OCTOBER"<<endl; 
} 
if(month==11) 
{ 
cout<<"NOVEMBER"<<endl; 
} 
if(month==12) 
{ 
cout<<"DECEMBER"<<endl; 
} 
else 
{ 
cout<<"invalid month"; 
} 
cout<<"enter a year.......!!!!"<<endl; 
cin>>year; 
if(year>2000 && year<2050) 
{ 
cout<<"valid....year"; 
} 
} 
}; 
class person 
{ 
private: 
string fname; 
string lname; 
public: 
person(string f ,string l) 
{ 
fname=f; 
lname=l; 
cout<<"constructor of person funtion"<<endl; 
} 
person() 
{ 
cout<<"destructor of person funtion"<<endl; 
} 
string get_p_f() 
{ 
return fname; 
} 
string get_p_l() 
{ 
return lname; 
} 
void set_fname(string f) 
{ 
fname=f; 
} 
void set_lname(string l) 
{ 
lname=l; 
} 
void valid_alphabet() 
{ 
if((fname>=65 && fname<=90)&&(fname>=97 && fname <=122)) 
{ 
cout<<"first name alphates....!!!!"<<fname<<endl; 
} 
} 
else if((lname>=65 && lname<=90)&&(lname>=97 && lname<=122)) 
{ 
cout<<"last name alphabets....."<<lname<<endl; 
} 
else 
{ 
cout<<"invalid alphabetss....."endl; 
} 
}; 
class doctor : public person 
{ 
private: 
string doc_spc; 
public: 
doctor(string doc="\0") 
{ 
doc_spc=doc; 
cout<<"constructor in doctor"<<endl; 
} 
~doctor() 
{ 
cout<<"desstructor in doctor"<<endl; 
} 
string get_specialist() 
{ 
return doc_spc; 
} 
void set_specialist(string doc) 
{ 
doc_spc=doc; 
} 
}; 
class bill 
{ 
private: 
int patient_id; 
int total_charges; 
int doc_fees; 
int medicine_fees; 
int room_charges; 
public: 
bill(int a,int b,int c,int d,int f) 
{ 
patient_id=a; 
total_charges=b; 
doc_fees=c; 
medicine_fees=d; 
room_charges=f; 
cout<<"constructor in bill"<<endl; 
} 
~bill() 
{ 
cout<<"Destructor in bill"<<endl; 
} 
int get_bill_p_id() 
{ 
return patient_id; 
} 
int get_bill_t_charges() 
{ 
return total_charges; 
} 
int get_bill_doc_fees() 
{ 
return doc_fees; 
} 
int get_bill_mdcn_chrges() 
{ 
return medicine_fees; 
} 
int get_bill_room_charges() 
{ 
return room_charges; 
} 
void set_pa_id(int a) 
{ 
patient_id=a; 
} 
void set_t_charges(int b) 
{ 
total_charges=b; 
} 
void set_doc_fees(int c) 
{ 
doc_fees=c; 
} 
void set_mdcn(int d) 
{ 
medicine_fees=d; 
} 
void set_room(int f) 
{ 
room_charges=f; 
} 
}; 
class patient:public person 
{ 
private: 
int patient_id; 
int age; 
int dob; 
string physician_name; 
int date_entr_patient; 
int date_patient_discharged; 
public: 
patient(int rl,int ag,int birth,string d_name,int date_patient,int dis_date) 
{ 
patient_id=rl; 
age=ag; 
dob=birth; 
string physician_name=d_name; 
date_entr_patient=date_patient; 
date_patient_discharged=dis_date; 
} 
~patient() 
{ 
cout<<"distructor in pateint"<<endl; 
} 
int get_pat_id() 
{ 
return patient_id; 
} 
int get_age() 
{ 
return age; 
} 
int get_birth() 
{ 
return dob; 
} 
string get_physian_name() 
{ 
return physician_name; 
} 
int get_date_enter_patient() 
{ 
return date_entr_patient; 
} 
int get_date_patient_discharged() 
{ 
return date_patient_discharged; 
} 
void set_pat_id(int rl) 
{ 
patient_id=rl; 
} 
void set_age(int a) 
{ 
age=a; 
} 
void set_birth(int b) 
{ 
dob=b; 
} 
void set_physian_name(int n) 
{ 
physician_name=n; 
} 
void set_date_entr_patienr(int ed) 
{ 
date_entr_patient=ed; 
} 
void set_date_entr_patienr(int dd) 
{ 
date_patient_discharged=dd; 
} 
}; 
int main() 
{ 
cout<<"enter docter new entries..!!!"; 
cout<<"enter patient new entries..!!!"; 
return 0; 
}