COMPUTER SCIENCEPROJECT FILE

ONTelephone Billing

System

PROJECT PREPARED BY:Rahul MehrotraXII ASession: 2015-2016 Delhi Public School, Rourkela

TABLE OF CONTENTS

Certificate

Acknowledgement

Header files and their purpose

Coding

Limitations

Requirements

Bibliography

Acknowledgement

I thank my Computer Science teacher __________ for guidance and support. I also thank my Principal Mr. S. Rath. I would also like to thank my parents for encouraging me during the course of this project. Finally I would like to thank CBSE for giving me this opportunity to undertake this project.

Certificate

This is to certify that Rahul Mehrotra of class XII A, Delhi Public School, Rourkela has successfully completed his project in computer practical for the AISSCE as prescribed by CBSE in the year 2015-2016.

Date :

Registration No. :

Signature of Internal Signature of ExternalExaminer Examiner

__________________ __________________

HEADER FILES USED AND THEIR PURPOSE

1. FSTREAM.H – for file handling, cin and cout

2. PROCESS.H – for exit() function

3. CONIO.H – for clrscr() and getch() functions

4. STDIO.H – for standard I/O operations

5. STRING.H – for string handling

6. CTYPE.H – for character handling

CODING

#include<fstream .h>#include<iomanip .h>#include<string .h>#include<process .h>#include<stdlib .h>#include<iostream .h>#include<conio .h>#include<stdio .h>#include<dos .h>void proj_name(void);void created(void); class consumer { public: long unsigned int tel_no; long unsigned int con_no; char name[60]; char add[300]; char city[40]; long unsigned int op_rdg; long unsigned int cl_rdg; long unsigned int met_calls; long unsigned int free_calls; long unsigned int charge_calls; float met_charge; float rent; float debits; float tax; float credits; float gross_amt; float surcharge; long unsigned int net_amt_bef; long unsigned int net_amt_aft; public: void get_data(void); void show_data(void); }; void consumer::get_data(void){ setfillstyle(1,BLACK); bar(0,0,680,480); consumer g1; int a; char ch; setlinestyle(0,0,3); setcolor(BROWN);

settextstyle(1,0,5); outtextxy(90,20,"ENTER THE RECORD:-"); setfillstyle(1,BLACK); bar(50,100,550,400); rectangle(50,100,550,400); gotoxy(10,10);void){ bar(0,0,660,480); setcolor(RED); settextstyle(8,0,3); outtextxy(55,10,"BHARAT SANCHAR NIGAM LIMITED"); setlinestyle(1,0,3); line(51,40,486,40); gotoxy(10,5); settextstyle(3,0,1); setcolor(BROWN); outtextxy(15,55,"TELEPHONE NO."); outtextxy(330,55,"CONSUMER NO."); outtextxy(15,170,"OPENING READING "); outtextxy(15,205,"CLOSING READING "); outtextxy(15,235,"METERED CALLS "); outtextxy(15,268,"FREE CALLS "); outtextxy(15,300,"CHARGABLE CALLS "); setcolor(BROWN); outtextxy(330,170,"METERED CALLS "); outtextxy(330,205,"DEBITS "); outtextxy(330,235,"TAXES "); outtextxy(330,268,"GROSS AMOUNT "); outtextxy(330,300,"CREDITS "); outtextxy(330,140,"RENTAL "); setcolor(MAGENTA); outtextxy(15,327,"AMOUNT PAYABLE IF PAID ON OR BEFORE "); setcolor(BROWN); outtextxy(15,350,"SURCHARGE "); setcolor(MAGENTA); outtextxy(15,377,"AMOUNT PAYABLE IF PAID ON OR AFTER "); setcolor(RED); setlinestyle(0,0,3); bar(70,90,320,160); rectangle(70,90,320,160); gotoxy(20,5); cout< <tel_no; gotoxy(60,5); cout<<con_no; gotoxy(12,7); cout<<name<<"\n";

gotoxy(12,8); cout<<add<<"\n"; gotoxy(12,9); cout<<city; gotoxy(54,10); cout<<setw(20)<<rent; gotoxy(25,12); cout<<setw(15); cout<<op_rdg; gotoxy(25,14); cout<<setw(15)<<cl_rdg; gotoxy(25,16); cout<<setw(15)<<met_calls; gotoxy(25,18); cout<<setw(15)<<free_calls; gotoxy(25,20); cout<<setw(15)<<charge_calls; gotoxy(59,12); cout<<setw(15)<<met_charge; gotoxy(59,14); cout<<setw(15)<<debits; gotoxy(59,16); cout<<setw(15)<<tax; gotoxy(59,18); cout<<setw(15)<<gross_amt; gotoxy(59,20); cout<<setw(15)<<credits; gotoxy(50,22); cout<<setw(5)<<net_amt_bef; gotoxy(25,23); cout<<setw(15)<<surcharge; gotoxy(50,25); cout<<setw(5)<<net_amt_aft;} void main(){ char ans; int con_no; int gd=DETECT,gm; int i,j; int midx,midy; initgraph(&gd,&gm,"c:\\tc\\bgi"); midx=getmaxx()/2; midy=getmaxy()/2; /*char*pass="HELLO"; char*ppass; gotoxy(25,8); ppass=getpass("ENTER THE PASSWORD::"); if(strcmpi(pass,ppass)!=0) { setcolor(GREEN); settextstyle(1,0,4); outtextxy(140,220,"INVALID PASSWORD");

sleep(3); exit(1); }*/ setlinestyle(1,0,2); setfillstyle(1,LIGHTCYAN); rectangle(2,1,660,660); bar(2,1,660,660); setcolor(RED); for(i=90;i<=385;i+=17) { outtextxy(50,i,"*"); outtextxy(560,i,"*"); } for(j=50;j<=560;j+=17) { outtextxy(j,90,"*"); outtextxy(j,385,"*"); } setfillstyle(1,LIGHTGRAY); ellipse(310,240,0,360,240,120); fillellipse(310,240,240,120); setfillstyle(1,LIGHTCYAN); ellipse(312,241,0,360,200,100); fillellipse(312,241,200,100); setfillstyle(1,LIGHTGRAY); ellipse(314,242,0,360,160,80); fillellipse(314,242,160,80); settextstyle(0,0,3); settextstyle(0,HORIZ_DIR,4); setcolor(RED); outtextxy(200,190,"WELCOME"); settextstyle(1,0,4); for(i=220;i&lt;221;i++) { outtextxy(280,i,"TO"); } settextstyle(0,0,3); for(i=270;i&lt;271;i++) { outtextxy(190,270,"OUR PROJECT"); } sleep(1); sleep(1); proj_name(); sleep(1); created(); fstream fin; consumer g1; i:fin.open("m.dat",ios::in|ios::out|ios::app|ios::ate|ios::binary); fin.seekg(0,ios::end);

int a; char answer; setfillstyle(1,LIGHTMAGENTA); rectangle(0,0,600,480); bar(0,0,700,480); setcolor(BLUE); settextstyle(1,0,5); setlinestyle(1,0,3); outtextxy(10,20,"ENTER YOUR CHOICE:-"); settextstyle(1,0,3); outtextxy(100,120,"PRESS 1:TO ADD NEW RECORD"); outtextxy(100,150,"PRESS 2:TO SEE THE RECORDS"); outtextxy(100,180,"PRESS 3:FOR ENQUIRY"); outtextxy(100,210,"PRESS 4:FOR MODIFICATION"); outtextxy(100,240,"PRESS 5:FOR EXIT"); setfillstyle(1,RED); bar(580,370,640,420); gotoxy(77,25); cin>>a; setfillstyle(1,0); 

//TO ADD NEW RECORDif(a==1) { do { setfillstyle(1,LIGHTMAGENTA); bar(0,0,679,679); settextstyle(1,0,4); setcolor(BLUE); outtextxy(90,10,"ENTER THE RECORD:-"); gotoxy(40,9); long unsigned int tel_no; outtextxy(50,110,"TELEPHONE_NO :"); cin>>tel_no; fin.seekg(0); do { fin.read((char*)&g1,sizeof(g1));

if(fin.eof())break;if(g1.tel_no==tel_no) { bar(0,0,679,679); settextstyle(1,0,3); setfillstyle(1,LIGHTCYAN); bar(20,200,610,250); outtextxy(20,220,"PERSON WITH THIS TELEPHONE_NO

ALREADY EXISTS"); delay(2000); goto u; }

}while(!fin.eof()); fin.close(); fin.open("m.dat",ios::app|ios::out|ios::in|ios::ate|ios::binary); fin.seekg(0,ios::end) ; long unsigned int r=fin.tellg(); long unsigned int t=(r/sizeof(g1))+1; con_no=t; g1.tel_no=tel_no; g1.con_no=con_no; g1.get_data(); fin.write((char*)&g1,sizeof(g1)); setcolor(RED); settextstyle(8,0,4); outtextxy(12,420,"ENTER ANY OTHER RECORD(Y/N)"); setfillstyle(1,4); bar(250,450,270,470); gotoxy(37,35); answer=getche(); } while ((answer=='Y')||(answer=='y')); goto u;} 

//TO SEE THE RECORDSelse if(a==2) { fin.seekg(0); fin.read((char*)&g1,sizeof(g1)) ; do { clrscr(); g1.show_data(); fin.read((char*)&g1,sizeof(g1)); getch(); } while(!fin.eof()); fin.close(); goto i; } 

//FOR ENQUIRYelse if (a==3) { long unsigned int tel_no1; bar(0,0,679,679); setcolor(GREEN); outtextxy(70,150,"ENTER THE TELEPHONE_NO OF PERSON :"); gotoxy(35,15); cin>>tel_no1; bar(0,0,679,679);

fin.seekg(0); do { fin.read((char*)&g1,sizeof(g1)); if(fin.eof()) goto y; else if(g1.tel_no==tel_no1) break; } while(fin); g1.show_data(); getch(); goto u; } 

//FOR MODIFICATIONelse if(a==4) { long unsigned int tel_no2; long unsigned int con_no; char name[60]; char add[300]; char city[40]; long unsigned int op_rdg; long unsigned int cl_rdg; long unsigned int met_calls; long unsigned int free_calls; long unsigned int charge_calls; float met_charge; float rent; float debits; float tax; float credits; float gross_amt; float surcharge; long unsigned int net_amt_bef; long unsigned int net_amt_aft; bar(0,0,679,679); setcolor(MAGENTA); outtextxy(100,150,"ENTER THE TELEPHONE_NO OF PERSON "); outtextxy(100,180," TO BE MODIFIED "); gotoxy(35,17); cin>>tel_no2; setfillstyle(1,0); fin.seekg(0); do { fin.read((char*)&g1,sizeof(g1)); if(fin.eof()) { setfillstyle(1,LIGHTMAGENTA);

bar(0,0,679,679); setfillstyle(1,LIGHTCYAN); bar(40,200,565,250); setcolor(BLUE); settextstyle(1,0,3); outtextxy(70,220,"DESIRED TELEPHONE_NO DOES NOT EXISTS"); delay(2000); setfillstyle(1,0); goto u; } if(g1.tel_no==tel_no2) { char ch; long unsigned int b=fin.tellg(); long unsigned int s=sizeof(g1); fin.close(); fin.open("m.dat",ios::out|ios::ate|ios::binary); fin.seekp(b-s); setfillstyle(1,BLACK); bar(0,0,680,480); setlinestyle(0,0,3); setcolor(BROWN); settextstyle(1,0,5); outtextxy(90,20,"ENTER THE RECORD:-"); setfillstyle(1,BLACK); bar(50,100,550,400); rectangle(50,100,550,400); gotoxy(10,10); cout< <"TELEPHONE NO. :"; cout<<g1.tel_no; cin.get(ch); gotoxy(10,12); cout<<"NAME :"; cin.getline(name,60); gotoxy(10,14); cout<<"ADDRESS :"; cin.getline(add,300); gotoxy(10,16); cout<<"CITY :"; cin.getline(city,20); gotoxy(10,18); cout<<"OPENING READING :"; cin>>op_rdg; gotoxy(10,20); cout< <"CLOSING READING :"; cin>>cl_rdg; met_calls=cl_rdg-op_rdg; free_calls=150; rent=360; if(met_calls</free_calls><free_calls )

{ charge_calls=0; met_charge=0; } else { charge_calls=met_calls-free_calls; met_charge=charge_calls*(.80); } gotoxy(10,22); cout<<"DEBITS :"; cin>>debits; tax=(rent+met_charge+debits)/20; gross_amt=(met_charge+rent+tax+debits); gotoxy(10,24); cout< <"CREDITS :"; cin>>credits; if(credits>gross_amt) net_amt_bef=0; else net_amt_bef=gross_amt-credits; if(credits>=gross_amt) surcharge=0; else surcharge=20; net_amt_aft=net_amt_bef+surcharge; g1.con_no=g1.con_no; strcpy(g1.name,name); strcpy(g1.add,add); strcpy(g1.city,city); g1.op_rdg=op_rdg; g1.cl_rdg=cl_rdg; g1.met_calls=met_calls; g1.free_calls=free_calls; g1.charge_calls=charge_calls; g1.met_charge=met_charge; g1.rent=rent; g1.debits=debits; g1.tax=tax; g1.credits=credits; g1.gross_amt=gross_amt; g1.surcharge=surcharge; g1.net_amt_bef=net_amt_bef; g1.net_amt_aft=net_amt_aft; fin.write((char*)&g1,sizeof(g1)); goto kk; } }while(fin); kk:setfillstyle(1,LIGHTMAGENTA);bar(0,0,679,679);

setfillstyle(1,LIGHTCYAN);bar(35,200,550,250);setcolor(BLUE);settextstyle(1,0,3);outtextxy(80,220,"RECORD OF THIS PERSON IS MODIFIED");delay(4000);setfillstyle(1,0);goto u;} 

//FOR EXITelse { exit(0); } u:fin.close();bar(0,0,680,480);goto i; y:setfillstyle(1,LIGHTMAGENTA);bar(0,0,679,679);settextstyle(TRIPLEX_FONT,0,3);setfillstyle(1,LIGHTCYAN);bar(150,200,490,245);setcolor(BLUE);outtextxy(210,220,"RECORD NOT FOUND");setfillstyle(1,0);fin.close();delay(2000);goto u;} void proj_name(void) { fflush(stdin); int midx,midy; midx=getmaxx()/2; midy=getmaxy()/2; int i,j; setcolor(RED); setlinestyle(1,0,3); setfillstyle(1,CYAN); bar(2,1,660,660); rectangle(2,1,660,660); setcolor(RED); setfillstyle(1,WHITE); bar(25,75,575,425); rectangle(25,75,575,425); setfillstyle(1,CYAN); bar(50,100,550,400);

rectangle(50,100,550,400); setcolor(RED); setfillstyle(1,WHITE); bar(75,125,525,375); rectangle(75,125,525,375); setcolor(RED); setfillstyle(1,CYAN); bar(100,150,500,350); rectangle(100,150,500,350); setcolor(RED); settextstyle(0,0,1); settextstyle(1,0,6); settextjustify(CENTER_TEXT,CENTER_TEXT); for(i=170;i< =172;i++) { sleep(1); outtextxy(291,i, "TELEPHONE"); outtextxy(301,i+70, " BILLING "); outtextxy(331,i+140,"SYSTEM "); } } void created(void) { fflush(stdin); setfillstyle(1,LIGHTCYAN); rectangle(2,1,660,660); bar(2,1,660,660); setcolor(RED); setlinestyle(1,0,3); settextstyle(1,0,8); settextjustify(LEFT_TEXT,TOP_TEXT); line(10,110,380,110); outtextxy(10,20,"C"); settextstyle(4,0,8); outtextxy(47,20,"reated By:-"); settextstyle(1,0,6); settextjustify(LEFT_TEXT,CENTER_TEXT);  outtextxy(275,250,"MOHIT & ROHIT");  sleep(1); sleep(1); clrscr(); }

REQUIREMENTS HARDWARE REQUIRED

Printer, to print the required documents of the project

Compact DriveProcessor : Pentium IIIRam : 64 MB Harddisk : 20 Gb.

SOFTWARE REQUIRED

Operating system : Windows XPTurbo C++, for execution of program andMs Word for presenattion of output.

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BIBLIOGRAPHY

COMPUTER SCIENCE IN C++ BY :– SUMITA ARORAwww.cbseportal.com www.cbseportal.comwww.cbseportal.comwww.cbseportal.comwww.cbseportal.comwww.cbseportal.comwww.cbseportal.com www.cbseportal.comwww.cbseportal.comwww.cbseportal.comwww.cbseportal.comwww.cbseportal.comwww.cbseportal.com www.cbseportal.comwww.cbseportal.comwww.cbseportal.comwww.cbseportal.comwww.cbseportal.com