This document contains C++ code that generates utility billing statements by randomly generating customer and meter data, calculating usage amounts and charges, and outputting a formatted statement to a file. It includes functions to calculate bills for water, gas, electricity and totals. Customer name, address, previous balance, usage details and amount due are output to a text file for a utility billing statement.

1. #include<iostream>
#include<string>
#include<iomanip>
#include<fstream>
#include<cstdlib>
#include<cstring>
#include<ctime>
#include<cmath>
#include<Windows.h>
using namespace std;
SYSTEMTIME*p_st=new SYSTEMTIME;
typedef unsigned long long Type;
Type myRand(const Type Max, const Type Min = 0)
{
return rand()/(float)RAND_MAX * (Max-Min) + Min ;
}
int main()
{
srand(time(0));
char sdate[9];
_strdate_s( sdate );
int number=rand()%999999+100000;
int customer=rand()%999999+100000;
int watermeter=rand()%99999999+10000000;
int gasmeter=rand()%99999+10000;
int electric=rand()%99999+10000;
int watermeter2=rand()%99999999+10000000;
int gasmeter2=rand()%99999+10000;
int electric2=rand()%99999+10000;
int watermeter3=rand()%99999999+10000000;
int gasmeter3=rand()%99999+10000;
int electric3=rand()%99999+10000;
int c=rand()%9999+1000;
int b=rand()%99999+10000;
int account=211012222222;
double avaicharge=0.00;
double previousbalance;
double payments=0.00;
double balance=0.00;
double water=17.08;
double gas=12.26;
double trash=16.50;
double tax=8.46;
double misc=0.44;
double total=280.00;
double gross=294.00;
double net=280.00;
bool arrangements;
int presentreadingwater=0;
int presentreadinggas=0;
int presentreadingelectric=0;

2. int presentreadingsewer=0;
int days=30;
int invnumber=rand()%99999+10000;
int invnumber2=rand()%999999+100000;
srand(unsigned(time(0)));
const Type MAX = 99999999999;
const Type MIN = 10000000000;
double consg;
double conse;
double chargee=8.88;
double consw;
double chonsw=3.84;
double watercons1=(3000*0.001240);
double watercons2=(3000*0.001550);
double watercons3=(2900*0.001680);
double avaichargewater=3.84;
double consgas=(800*0.009700);
double avaichargegas=4.50;
double avaichargeelectric=8.88;
double elecons1=(1400*0.082720);
double elecons2=(667*0.090730);
double electricbill(double chargee, double conse);
double gasbill(double consg);
double waterbill(double chonsw,double consw);
double sewercons=0.0045;
char input[7];
const char password[7]="jeremy";
GetSystemTime(p_st);
cout<<sdate<<endl;
cout<<"Please enter your password: "<<endl;
cin>>input;
if(strcmp(input,"jeremy")!=0)
{
cout<<"Invalid password"<<endl;
}
else
{
cout<<"Correct password"<<endl;
ifstream inFile;
ofstream outFile;
outFile.open("Utility2.dat",ios::out|ios::app);
cout<<"Please enter the gas usage: "<<endl;
cin>>consg;
cout<<gasbill(consg)<<endl;
cout<<"Please enter the electricity usage: "<<endl;
cin>>conse;
cout<<electricbill(chargee,conse)<<endl;
cout<<"Please enter you're water usage: "<<endl;
cin>>consw;
cout<<fixed<<showpoint<<setprecision(2)<<waterbill(chonsw,consw)<<endl;

3. cout<<"Please enter the customer's previous balance: ";
cin>>previousbalance;
if(previousbalance<0)
{
cout<<"Have any arrangements been made?";//answer in true or false
cin>>arrangements;
}
if(arrangements=true)
{
cout<<"Power is on";
}
else if(arrangements=false)
{
cout<<"A $30 fee has been added to turn your power back on";
}
outFile<<setw(18)<<"Customer Name";
outFile<<right<<setw(36)<<"Customer Number: "<<customer<<c<<endl;
cout<<right;
outFile<<setw(18)<<"UTILITY CUSTOMER"<<right<<setw(36)<<"Account Number:
"<<number<<b<<endl;
outFile<<right<<setw(36)<<"www.hsvutil.org";
outFile<<right<<setw(19)<<"Pay Gross After: "<<p_st->wMonth<<"/"<<p_st-
>wDay+10<<"/"<<p_st->wYear<<endl;
outFile<<right;
outFile<<setw(18)<<"Service Address"<<setw(35)<<"Net Amount Due:$
"<<fixed<<showpoint<<setprecision(2)<<gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash+misc+(gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash)-(previousbalance)*.03<<endl;
outFile<<endl;
outFile<<endl;
outFile<<"123 ANY STREET"<<endl;
outFile<<right<<setw(18);
outFile<<"HUNTSVILLE AL"<<setw(34)<<"Invoice Date: "<< p_st->wMonth<<"/"<<p_st-
>wDay<<"/"<<p_st->wYear<<endl;
outFile<<right<<setw(21)<<"|Bill due upon receipt. Data above applies to current
charges and not to previous balance. |"<<endl;
outFile<<right<<setw(18)<<"Messages"<<right<<setw(80)<<"|Account Summary
|"<<endl;
outFile<<right<<setw(64)<<"|Previous Balance
"<<right<<setw(17)<<"$"<<previousbalance<<right<<setw(13)<<"|"<<endl;
outFile<<"|*PUBLICLY-OWNED, NOT-FOR-PROFIT--RELIABLE
|Payments"<<right<<setw(26)<<"$"<<payments<<right<<setw(13)<<"|"<<endl;
outFile<<"SERVICES-LOWER RATES"<<right<<setw(42)<<"|Balance
Forward"<<right<<setw(27)<<"$"<<balance<<" |"<<endl;
outFile<<"Please be advised that your meter reading date"<<"|Current
Charge"<<endl;
outFile<<right<<setw(20)<<"Service Period: "<<right<<setw(27)<<"|"<<endl;
outFile<<"was May 5, 2011."<<right<<setw(37)<<"|Water "<<right<<setw(20)<<"$
"<<fixed<<showpoint<<setprecision(2)<<waterbill(chonsw,consw)<<endl;
outFile<<right<<setw(50)<<"|Gas"<<right<<setw(23)<<" $
"<<fixed<<showpoint<<setprecision(2)<<gasbill(consg)<<endl;

4. outFile<<right<<setw(55)<<"|Electric"<<right<<setw(18)<<"$
"<<fixed<<showpoint<<setprecision(2)<<electricbill(chargee,conse)<<endl;
outFile<<right<<setw(52)<<"|Sewer"<<right<<setw(21)<<"$
"<<fixed<<showpoint<<setprecision(2)<<sewercons<<endl;
outFile<<right<<setw(52)<<"|Trash"<<right<<setw(21)<<"$
"<<fixed<<showpoint<<setprecision(2)<<trash<<endl;
outFile<<right<<setw(50)<<"|Tax"<<right<<setw(23)<<"$
"<<fixed<<showpoint<<setprecision(2)<<(gasbill(consg)+electricbill(chargee,conse)+waterbi
ll(chonsw,consw)+sewercons+trash)*.03<<right<<setw(15)<<endl;
outFile<<right<<setw(60)<<"|Miscellaneous"<<right<<setw(13)<<"$
"<<fixed<<showpoint<<setprecision(2)<<misc<<endl;
outFile<<right<<setw(68)<<"|Total Current Charges"<<right<<setw(19)<<"$
"<<fixed<<showpoint<<setprecision(2)<<gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash+misc+(gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash)*.03<<endl;
outFile<<right<<setw(63)<<"|Gross Amount Due"<<right<<setw(24)<<"$
"<<fixed<<showpoint<<setprecision(2)<<gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash+misc+(gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash)-(previousbalance)*.03<<" |"<<endl;
outFile<<right<<setw(61)<<"|Net Amount Due"<<right<<setw(26)<<"$
"<<fixed<<showpoint<<setprecision(2)<<gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash+misc+(gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash)-(previousbalance)*.03<<" |"<<endl;
outFile<<setw(60)<<"___"<<endl;
outFile<<right<<setw(22)<<"Meter Reading Details"<<right<<setw(28)<<"Degree Days:
Past 336"<<right<<setw(14)<<"Present 132"<<endl;
outFile<<"________________________________________________________________________
____________________________________________________"<<endl;
outFile<<"|Service"<<right<<setw(10)<<"Meter"<<right<<setw(9)<<"Read"<<right<<setw
(13)<<"Previous"<<right<<setw(12)<<"Previous"<<right<<setw(10)<<"Present"<<right<<setw(14
)<<"Present"
<<right<<setw(9)<<"No. of"<<right<<setw(9)<<"Monthly"<<right<<setw(32)<<"Billed
Usage|"<<endl;
outFile<<"|Type"<<right<<setw(13)<<"Number"<<right<<setw(9)<<"Type"<<right<<setw(1
4)<<"Read Date"<<right<<setw(10)<<"Reading"<<right<<setw(13)<<"Read
Date"<<right<<setw(12)<<"Reading"<<
right<<setw(8)<<"Days"<<right<<setw(9)<<"Usage"<<right<<setw(14)<<"Multiplier"<<ri
ght<<setw(19)<<" |"<<endl;
outFile<<"|Water"<<right<<setw(12)<<watermeter<<right<<setw(10)<<"Actual"<<right<<
setw(6)<<p_st->wMonth-1<<"/"<<p_st->wDay<<"/"<<p_st-
>wYear<<right<<setw(10)<<watermeter2<<right<<setw(5)<<p_st->wMonth<<"/"<<p_st-
>wDay<<"/"<<p_st-
>wYear<<right<<setw(13)<<watermeter3<<right<<setw(7)<<days<<right<<setw(10)<<consw<<right
<<setw(26)<<consw<<" GAL|"<<endl;
outFile<<"|Gas"<<right<<setw(14)<<gasmeter<<right<<setw(10)<<"Actual"<<right<<setw
(6)<<p_st->wMonth-1<<"/"<<p_st->wDay<<"/"<<p_st-
>wYear<<right<<setw(10)<<gasmeter2<<right<<setw(5)<<p_st->wMonth<<"/"<<p_st-
>wDay<<"/"<<p_st-
>wYear<<right<<setw(13)<<gasmeter3<<right<<setw(7)<<days<<right<<setw(10)<<consg<<right<<
setw(26)<<consg<<" CUF|"<<endl;
outFile<<"|Electric"<<right<<setw(9)<<electric<<right<<setw(10)<<"Actual"<<right<<
setw(6)<<p_st->wMonth-1<<"/"<<p_st->wDay<<"/"<<p_st-
>wYear<<right<<setw(10)<<electric2<<right<<setw(5)<<p_st->wMonth<<"/"<<p_st-
>wDay<<"/"<<p_st-
>wYear<<right<<setw(13)<<electric3<<right<<setw(7)<<days<<right<<setw(10)<<conse<<right<<
setw(26)<<conse<<" KWH|"<<endl;
outFile<<"|Sewer"<<right<<setw(12)<<watermeter<<right<<setw(10)<<"Actual"<<right<<
setw(6)<<p_st->wMonth-1<<"/"<<p_st->wDay<<"/"<<p_st-

5. >wYear<<right<<setw(10)<<watermeter2<<right<<setw(5)<<p_st->wMonth<<"/"<<p_st-
>wDay<<"/"<<p_st->wYear<<right<<setw(13)
<<watermeter3<<right<<setw(7)<<days<<right<<setw(10)<<
consw<<right<<setw(26)<<consw<<" GAL|"<<endl;
outFile<<"------------------------------------------------------------------------
----------------------------------------------------"<<endl;
outFile<<right<<setw(70)<<"*********************FINAL
NOTICE*********************"<<endl;
outFile<<"This is to notify you that it may be necessary to discontinue your
utility service as of 05/24/11 unless prompt payment of this invoice or"<<endl;
outFile<<"satisfactory arrangement for payment is made before this date. Payment
in full or satisfactory payment arrangements made before"<<endl;
outFile<<"05/24/11 will avoid any reconnection or collection charges. If you have
any questions or disputes concerning your account, you should"<<endl;
outFile<<"contact us in person, by telephone at (256) 535-1200 or toll free at
(866) 478-8845 before 05/24/11. A review procedure is also available"<<endl;
outFile<<"to all our customers through which problems or disputes may be resolved;
copies are available at the utilities office. Call (256) 535-1200 to"<<endl;
outFile<<"make payment agreements by phone. Have your account number and pin
number available. No further notice will be provided."<<endl;
outFile<<endl;
outFile<<right<<setw(35)<<"Please return bottom portion with your payment."<<endl;
outFile<<"________________________________________________________________________
___________________________________________________"<<endl;
outFile<<right<<setw(30)<<"Account number "<<account<<right<<setw(30)<<"Pay Gross
After"<<right<<setw(17)<<p_st->wMonth<<"/"<<p_st->wDay+10<<"/"<<p_st->wYear<<endl;
outFile<<right<<setw(65)<<"Net Amount Due"<<right<<setw(18)<<"$
"<<fixed<<showpoint<<setprecision(2)<<gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash+misc+(gasbill(consg)+electricbill(chargee,conse)+waterbil
l(chonsw,consw)+sewercons+trash)-(previousbalance)*.03<<endl;
outFile<<endl;
outFile<<endl;
outFile<<right<<setw(55)<<"_______________________________________"<<endl;
outFile<<right<<setw(55)<<"|Total Amount Paid| |"<<endl;
outFile<<right<<setw(55)<<"| Project Share| |"<<endl;
outFile<<right<<setw(55)<<"---------------------------------------"<<endl;
outFile<<right<<setw(55)<<"HUNTSVILLE UTILITIES"<<endl;
outFile<<right<<setw(55)<<"HUNTSVILLE, AL 35895"<<endl;
outFile<<endl;
outFile<<right<<setw(18)<<"UTILITY CUSTOMER"<<endl;
outFile<<right<<setw(18)<<"123 ANY STREET"<<endl;
outFile<<right<<setw(18)<<"HUNTSVILLE AL 35803"<<endl;
outFile<<right<<setw(70)<<"Invoice Number: "<<invnumber<<invnumber2<<endl;
outFile<<endl;
outFile<<"Charge Details"<<endl;
outFile<<"Water-RWM-22/Residential Water HSV ("<<p_st->wMonth-1<<"/"<<p_st-
>wDay<<"/"<<p_st->wYear<<"-"<<p_st->wMonth<<"/"<<p_st->wDay<<"/"<<p_st->wYear<<", for 30
days)"<<endl;
outFile<<" Availability Charge"<<right<<setw(34)<<avaicharge<<endl;
outFile<<" Consumption Charge"<<right<<setw(30)<<"3000 GAL
@0.001240"<<right<<setw(8)<<"3.72"<<endl;
outFile<<right<<setw(49)<<"3000 GAL @0.001550"<<right<<setw(8)<<"4.65"<<endl;
outFile<<right<<setw(49)<<"2900 GAL
@0.001680"<<right<<setw(8)<<"4.87"<<right<<setw(9)<<"Total "<<waterbill(chonsw,consw);
outFile<<endl;
outFile<<"Gas-RGM-22/Residential Gas ("<<p_st->wMonth-1<<"/"<<p_st-
>wDay<<"/"<<p_st->wYear<<"-"<<p_st->wMonth<<"/"<<p_st->wDay<<"/"<<p_st->wYear<<", for 30
days)"<<endl;

6. outFile<<" Availability Charge"<<right<<setw(37)<<"4.50"<<endl;
outFile<<" Consumption Charge"<<right<<setw(31)<<"800 CUF
@0.009700)"<<right<<setw(9)<<consgas<<" Total $"<<gasbill(consg)<<endl;
outFile<<endl;
outFile<<"Electric-REM-22/Residential Electricity ("<<p_st->wMonth-1<<"/"<<p_st-
>wDay<<"/"<<p_st->wYear<<"-"<<p_st->wMonth<<"/"<<p_st->wDay<<"/"<<p_st->wYear<<", for 30
days)"<<endl;
outFile<<" Availability Charge"<<right<<setw(38)<<avaichargeelectric<<endl;
outFile<<" Consumption Charge"<<right<<setw(29)<<"1400
KWH@0.082720"<<right<<setw(11)<<elecons1<<endl;
outFile<<right<<setw(48)<<"667
KWH@0.090730"<<right<<setw(12)<<elecons2<<right<<setw(7)<<"Total
$"<<electricbill(chargee,conse)<<endl;
outFile<<"________________________________________________________________________
________"<<endl;
outFile<<"Sewer-RSM-22/Residential Sewer ("<<p_st->wMonth-1<<"/"<<p_st-
>wDay<<"/"<<p_st->wYear<<"-"<<p_st->wMonth<<"/"<<p_st->wDay<<"/"<<p_st->wYear<<", for 30
days) |"<<endl;
outFile<<" Sewer Consumption Charge"<<right<<setw(20)<<"8900
GAL@0.004500"<<right<<setw(11)<<sewercons<<"
Total"<<sewercons<<right<<setw(13)<<"|"<<endl;
outFile<<right<<setw(81)<<"|"<<endl;
outFile<<"Trash-RTU-22/Residential Trash HSV city ("<<p_st->wMonth-1<<"/"<<p_st-
>wDay<<"/"<<p_st->wYear<<"-"<<p_st->wMonth<<"/"<<p_st->wDay<<"/"<<p_st->wYear<<", for 30
days)"<<right<<setw(9)<<"|"<<endl;
outFile<<" Trash Charge"<<right<<setw(46)<<trash<<" Total $"<<trash<<endl;
outFile<<"------------------------------------------------------------------------
---------"<<endl;
outFile<<"Tax"<<right<<setw(60)<<(gasbill(consg)+electricbill(chargee,conse)+water
bill(chonsw,consw)+sewercons+trash)*.03<<" Total
$"<<(gasbill(consg)+electricbill(chargee,conse)+waterbill(chonsw,consw)+sewercons+trash)*
.03<<endl;
outFile<<endl;
outFile<<endl;
outFile<<endl;
outFile<<endl;
outFile<<endl;
outFile<<endl;
outFile<<endl;
outFile<<endl;
outFile<<"Huntsville Utilities"<<right<<setw(40)<<"Telephone Numbers"<<endl;
outFile<<"TO REPORT AN OUTAGE-(256)53-LIGHT 535-
4448"<<right<<setw(25)<<"Huntsville City Garbage-(256) 883-3964"<<endl;
outFile<<"FOR ALL OTHER CUSTOMER INQUIRIES (256) 535-1200/Toll Free 866-478-
8845"<<" Huntsville City Sewer-(256) 883-3719"<<endl;
outFile<<"Have account number and pin number available"<<right<<setw(25)<<"Madison
County Garbage-(256) 532-3718"<<endl;
outFile<<"PAYMENT BY CREDIT CARD/SPEEDPAY 1-877-429-
4131"<<right<<setw(25)<<"Madison County Water-(256) 746-2888"<<endl;
outFile<<right<<setw(45)<<"City of New Hope-(256) 723-2616"<<endl;
outFile<<"________________________________________________________________________
________"<<endl;
outFile<<endl;
}
return 0;
}

7. double gasbill(double consg)
{
double bill;
if(consg>4000)
bill=0.090739*consg;
else
bill=0.08272*consg;
return bill;
}
double electricbill(double chargee,double conse)
{
double electric;
if(conse>4000)
electric=0.09073*conse+chargee;
else
electric=0.08272*conse+chargee;
return electric;
}
double waterbill(double chonsw,double consw)
{
if(consw>4000)
chonsw=0.00168*consw;
else if(consw>3000)
chonsw=0.00155*consw;
else
chonsw=0.00168*consw;
return chonsw;
}