E-BOOKS SOURCE CODE

E-BOOKS SOURCE CODE
#include<stdio.h> // Standard in-put & out-putfunctions like printf,scanf.
#include<conio.h> // clrscr,getch functions.
#include<string.h> // String Library functions like strcmp,strstr,strlen.....etc.
#include<stdlib.h> // Standard Library functions like abs,max,exit......etc.
void title(); // Title of the e-book shopping.
void login_account(); // Login to your account.
void create_account(); // Create a new account.
void customer_details(); // Customers in ebook shopping.
void all_ebooks(); // Different categories in ebooks.
void search_books(); // To search a book.
void payment(); // Cash on delivery & online payment.
void atm_cards(); // Debit card & Credit card options.
void down_buy_books(); // Download & Buy a ebook options.
void engineering_books();// Different Engineering ebooks.
void cse_books(); // Cse ebooks.
void ece_books(); // Ece ebooks.
void civil_books(); // Civil ebooks.
void mech_books(); // Mech ebooks.
void eee_books(); // Eee ebooks.
void children_books(); // Children ebooks.
void business_books(); // Business ebooks.
void suggest_books(); // Suggest a book.
void book_num(); // Book Numbers (1-10).
void buy_book(); // Buy a Book.
void down_bar(); // Download Loading Bar.
void card_num(); // Debit card & Credit cards Details.
void back_menus(); // Different Back & Main Menus.
struct user // Structure Declaration.
{
char uname[10]; // Structure uname.
char pwd[10]; // Structure pwd.
}u;
char user[20],pwd[20];
char books[200][200]={"cprogramming by E.balagur Swamy cost is:350","oop's through c++ by E.balaguru swamy cost is:335","r For Every One by inder,pearson cost is:500","pythonprogramming by vamsi kurama,pearson cost is:300","datastructures by mark allen weiss cost is:400","javaprogramming by E.balaguru swamy cost is:350 ","softwareengineering by rajib mall cost is:435","computerorganization by carl hamacher cost is:500 ","webtechnologies by uttam K roy cost is:650","computernetworks by A.forouzan,firouz mosharrf cost is:600"};
char name[50],addrs[50],phnum[10],readbook[50],suggest_book[20],name1[20],cardnum[16],month_year[6],cvv[3],date_birth[8],ch;
int op1,op2,op3,op4,op5,op6,op7,op8,op9,op10,op11,op12,op13,op14,r1,i=0,j=0,k=0,r2,booknum,bnum,n,ctr=0;
FILE*f;

void main() // main() of program.
{
clrscr(); // Clear the Screen.
title(); // Calling of Title.
textcolor(MAGENTA);
cprintf("|==============================================================================|");
textcolor(RED);
cprintf("| ABOUT E-BOOK SHOPPING:- |");
textcolor(GREEN);
cprintf("| ELECTRONIC BOOK (e-book) is a book publication made available in |");
cprintf("| digital form consisting of text ,images, or both readable on the flat-panel |");
cprintf("| display of computers or other electronic devices. It is same as online book |");
cprintf("| store. This project focuses attention on designing efficient and reliable |");
cprintf("| softwar whitch controls the transactions of a book shop in real world. |");
cprintf("| |");
textcolor(RED);
cprintf("| EXPLORE:- |");
textcolor(GREEN);
cprintf("| In this project different categories books available like Engineering |");
cprintf("| books,Business books & Children books and we have different options Download |");
cprintf("| Sample book ,Download a Full book ,Search eBooks, Buy a book, Suggest book. |");
textcolor(RED);
cprintf("| |");
cprintf("| ***LOW PRICE GREAT SELECTION*** |");
cprintf("| |");
textcolor(MAGENTA);
cprintf("|==============================================================================|");
label1: // Label Declaration.
textcolor(YELLOW);
cprintf("\nEnter 1 for go to next page:");
scanf("%d",&n);
if(n==1)
{
label3: // Label Calling.
clrscr();
title();
textcolor(RED);
cprintf("1.CREATE ACCOUNT ");
cprintf("2.LOGIN ");
cprintf("3.CUSTOMERS LIST ");
cprintf("0.EXIT ");
}
else
{
textcolor(LIGHTRED);
cprintf("Enter 1 only. ");
goto label1;
}
label2:
textcolor(YELLOW);
cprintf("Enter your option(1-3):");
scanf("%d",&op1);
switch(op1) // Switch for Different case.
{
case 1:
clrscr();
title();
create_account(); // Calling function for Create Account.
textcolor(RED);
cprintf("Your account is successfully created.");
delay(2000); // Delay the next statement with in mensition time.
clrscr();
title();
textcolor(CYAN);
cprintf("Now you are login to your account. ");
login_account(); // Calling function for Login Account.
break;
case 2:
clrscr();
title();
login_account();
break;
case 3:
customer_details(); // Calling function for Customer Details.
label4:
textcolor(CYAN);
cprintf("Enter 1 for goto to back menu:");
scanf("%d",&n);
if(n==1)
{
goto label3;
}
else
{
textcolor(LIGHTBLUE);
cprintf("Enter correct option. ");
goto label4;
}
case 0:
textcolor(MAGENTA);
cprintf("Thank you for visiting eBOOK SHOPPING.");
delay(3000);
exit(0); // To exit the switch.
case 7:
f=fopen("user.dat","wb");
fclose(f);
textcolor(GREEN);
cprintf("All users are deleted.");
break;
default:
textcolor(LIGHTCYAN); // Add colour to the out-put text.
cprintf("Invalid option. ");
cprintf("Enter correct option. ");
goto label2;
}
getch(); // To get a single character from the keyboard.
}

void title() // Called function for Title.
{
textcolor(GREEN); // Add colour to the out-put text.
cprintf("**********************************E-BOOK SHOPPING*******************************");
textcolor(LIGHTBLUE);
cprintf(" *************** \t\t\t ");
}

void create_account() // Called function for Create Acoount.
{
struct user u;
f=fopen("user.dat","ab+");
textcolor(MAGENTA);
cprintf("Create user name:");
scanf("%s",&u.uname);
textcolor(MAGENTA);
cprintf("Create your password:");
scanf("%s",&u.pwd);
fwrite(&u,sizeof(struct user),1,f);
fclose(f);

}

void login_account() // Called function for Login Account.
{
int ctr=0;
char user[10],pwd[20];
struct user u;
textcolor(MAGENTA);
cprintf("Enter user name:");
scanf("%s",&user);
f=fopen("user.dat","rb+");
while( (fread(&u,sizeof(struct user),1,f))==1)
{
if(strcmp(user,u.uname)==0) // To check user name correct or not.
{
ctr=1;
textcolor(MAGENTA);
cprintf("Enter your password:");
scanf("%s",&pwd);
if(strcmp(pwd,u.pwd)==0) // To check password correct or not.
{
ctr+=2;
textcolor(BROWN);
cprintf("LOADING...........PLZ WAIT ");
for(i=0;i<=26;i++)
{
textcolor(LIGHTBLUE);
cprintf("%3c",221);
delay(200);
}
textcolor(RED);
printf("You are login successfully...... ");
textcolor(MAGENTA);
cprintf("LOADING...........PLZ WAIT ");
delay(2000);
clrscr();
title();
textcolor(GREEN);
cprintf("WELCOME TO E-BOOK SHOPPING! ");
all_ebooks();
}
}
}
if(ctr==0)
{
textcolor(MAGENTA); //Add colour to the out-put text.
cprintf("User not exit. ");
textcolor(CYAN);
i++;
if(i==3)
{
textcolor(GREEN);
cprintf("SORRYTRYAGAIN");
delay(3000);
exit(0);
}
cprintf("PLease enter correct user name. ");
login_account();
}
if(ctr==1)
{
textcolor(MAGENTA); //Add colour to the out-put text
cprintf("Incorrect password. ");
textcolor(CYAN);
cprintf("PLease enter correct user and password. ");
login_account();
}
fclose(f);
}

void customer_details() // Called function for Customer Details.
{
int i=1;
struct user u;
clrscr();
title();
textcolor(GREEN);
cprintf("CUSTOMERS LIST IS: ");
f=fopen("user.dat","ab+");
while((fread(&u,sizeof(struct user),1,f))==1)
{
textcolor(MAGENTA);
cprintf("%d.%s %s",i,u.uname,"INDIA");
i++;
printf("\n");
}
fclose(f); // Close the File f.
}

void all_ebooks() // Called function for All ebooks.
{
textcolor(RED);
cprintf("1.SEARCH eBOOKS ");
textcolor(CYAN);
cprintf("DIFFERENT CATEGORIES IN eBOOKS:- ");
textcolor(RED);
cprintf("2.ENGINEERING BOOKS ");
cprintf("3.BUSINESS BOOKS ");
cprintf("4.CHILDREN BOOKS ");
cprintf("0.EXIT ");
label5:
textcolor(YELLOW);
cprintf("Enter your option(1-5):");
scanf("%d",&op2);
switch(op2)
{
case 1:
search_books(); // Calling function for Search books.
break;
case 2:
clrscr();
title();
engineering_books(); // Calling function foe Engineering books.
break;
case 3:
business_books(); // Calling function for Business books.
down_buy_books(); // Calling function for Down & Buy books.
back_menus(); // Calling function for Back menus.
break;
case 4:
children_books(); // Calling function for Children books.
down_buy_books();
back_menus();
break;
case 5:
textcolor(MAGENTA);
cprintf("Thank you for visiting eBOOK SHOPPING.");
delay(3000);
exit(0);
default:
textcolor(LIGHTCYAN);
cprintf("Invalid option. ");
cprintf("Enter a number which category books you want. ");
goto label5;
}
}

void search_books() // Called function for Search books.
{
clrscr();
title();
textcolor(LIGHTGREEN);
cprintf("Enter book name without any spaces:");
scanf("%s",&readbook);
textcolor(LIGHTCYAN);
cprintf("Searching..... ");
for(i=0;i<10;i++)
{
k=0;
if(strstr(books[i],readbook)!='\0') // To check the Search book in ebooks or not.
{
printf("THE BOOHK IS::%d.%s\n",i,books[i]);
k++;
break;
}
}
if(k==0)
{
textcolor(LIGHTGREEN);
cprintf("Sorry ,the book is not available in ebooks. ");
}
else
{
for(i=0;i<=10;i++)
{
down_buy_books();
}
}
textcolor(RED);
cprintf("1.SUGGEST A BOOK ");
cprintf("2.GO TO BACK MENU ");
cprintf("3.EXIT ");
label6:
printf("Enter your option(1-3):");
scanf("%d",&op5);
switch(op5)
{
case 1:
clrscr();
title();
label7:
textcolor(LIGHTMAGENTA);
cprintf("Enter suggest book name without any spaces:");
scanf("%s",&suggest_book);
for(i=0;suggest_book[i]!='\0';i++)
{
if((suggest_book[i]>='a' && suggest_book[i]<='z') || (suggest_book[i]>='A' && suggest_book[i]<='Z'))
{ //To check given string collection of alphaberts or not.
textcolor(BROWN);
cprintf("Thank you for suggesting. ");
cprintf("I will try to add this book with in 24 Hours. ");
}
else
{
textcolor(LIGHTCYAN);
cprintf("The book name contains only alphabets. ");
goto label7; //goto re_enter_lastname label.
}
textcolor(RED);
cprintf("1.GO TO BACK MENU ");
cprintf("0.EXIT ");
label8:
textcolor(YELLOW);
cprintf("Enter your option((1-2):");
scanf("%d",&op6);
switch(op6)
{
case 1:
clrscr();
title();
all_ebooks();
break;
case 0:
textcolor(LIGHTMAGENTA);
cprintf("Thank you for visiting eBOOK SHOPPING.");
delay(3000);
exit(0);
default:
textcolor(LIGHTCYAN);
cprintf("Invalid option");
cprintf("Enter correct option.");
goto label8;
}
}
break;
case 2:
clrscr();
title();
all_ebooks(); //calling function for all branch books.
break;
case 0:
textcolor(LIGHTMAGENTA);
cprintf("Thank you for visiting eBOOK SHOPPING.");
delay(3000);
exit(0);
default:
printf("Enter a valid option.");
goto label6;
}
}

void engineering_books() //Called function for engineering books.
{
textcolor(LIGHTGREEN);
cprintf("DIFFERENT ENGINEERING BRANCH BOOKS:- ");
textcolor(RED);
cprintf("1.CSE BOOKS ");
cprintf("2.ECE BOOKS ");
cprintf("3.CIVIL BOOKS ");
cprintf("4.MECH BOOKS ");
cprintf("5.EEE BOOKS ");
cprintf("6.GO TO BACK MENU ");
cprintf("0.EXIT ");
label9:
textcolor(YELLOW);
cprintf("Enter your option(1-7):");
scanf("%d",&op3);
switch(op3) //switch for different cases.
{
case 1:
cse_books(); //calling function for cse books.
down_buy_books();
back_menus();
break;
case 2:
ece_books(); //calling function for ece books.
down_buy_books();
back_menus();
break;
case 3:
civil_books(); //calling function for civil books.
down_buy_books();
back_menus();
break;
case 4:
mech_books(); //calling function for mech books.
down_buy_books();
back_menus();
break;
case 5: //calling function for eee books.
eee_books();
down_buy_books();
back_menus();
break;
case 6:
clrscr();
title();
all_ebooks();
break;
case 0:
textcolor(LIGHTMAGENTA);
cprintf("Thank you for visiting eBOOK SHOPPING.");
delay(3000);
exit(0); //To exit the switch.
default:
textcolor(LIGHTCYAN);
cprintf("Invalid option. ");
cprintf("Enter a number which branch books you want. ");
goto label9;
}
}

void book_num()
{
label10:
textcolor(GREEN);
cprintf("Enter book number(1-10):");
scanf("%d",&booknum);
if(booknum>=10) //Book number is <=10 then goto next staements.
{
printf("Enter a valid book number.\n");
goto label10;
}
}

void down_buy_books() // Called function for Down & Buy Books.
{
textcolor(RED);
cprintf("1.DOWNLOAD SAMPLE BOOK ");
cprintf("2.DOWNLOAD FULL BOOK ");
cprintf("3.BUY A BOOK ");
cprintf("4.SUGGEST A BOOK ");
cprintf("5.GO TO BACK MENU ");
cprintf("0.EXIT ");
label11:
textcolor(YELLOW);
cprintf("Enter your option(1-6):");
scanf("%d",&op4);
i++;
switch(op4) //switch for different cases.
{
case 1:
book_num();
clrscr();
title();
down_bar();
if(op2==1)
{
textcolor(LIGHTGREEN);
cprintf("The download sample book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Search Books ");
}
else
{
if(op2==3)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Sample Book/Business Books ");
}
else
{
if(op2==4)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Sample Book/Children Books ");
}
else
{
if(op3==1)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Sample Book/Cse Books ");
}
else
{
if(op3==2)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Sample Book/Ece Books ");
}
else
{
if(op3==3)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Sample Book/Civil Books ");
}
else
{
if(op3==4)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Sample Book/Mech Books ");
}
else
{
if(op3==5)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Sample Book/Eee Books ");
}
}
}
}
}
}
}
}
break;
case 2:
book_num();
clrscr();
title();
atm_cards();
clrscr();
title();
down_bar();
if(op2==1)
{
textcolor(LIGHTGREEN);
cprintf("The download sample book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Search Books ");
}
else
{
if(op2==3)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Full Book/Business Books ");
}
else
{
if(op2==4)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Full Book/Children Books ");
}
else
{
if(op3==1)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Full Book/Cse Books ");
}
else
{
if(op3==2)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Full Book/Ece Books ");
}
else
{
if(op3==3)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Full Book/Civil Books ");
}
else
{
if(op3==4)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Full Book/Mech Books ");
}
else
{
if(op3==5)
{
textcolor(LIGHTGREEN);
cprintf("The downloaded book is available in the below path: ");
textcolor(LIGHTBLUE);
cprintf("C:/Users/Ramanjaneyulu/Downloads/Full Book/Eee Books ");
}
}
}
}
}
}
}
}
break;
case 3:
book_num();
clrscr();
title();
payment();
break;
case 4:
clrscr();
title();
suggest_books();
back_menus();
break;
case 5:
clrscr();
title();
if(op2==1 || op2==3 || op2==4)
{
all_ebooks();
}
else
{
if(op3==1 || op3==2 || op3==3 || op3==4 || op3==5)
{
engineering_books();
}
}
break;
case 0:
textcolor(LIGHTMAGENTA);
cprintf("Thank you for visiting eBOOK SHOPPING.");
delay(3000);
exit(0); //To exit the switch.
default:
textcolor(LIGHTCYAN);
cprintf("Invalid option. ");
cprintf("Enter correct option. ");
goto label11;
}
}

void payment() // Called function for Payment.
{
textcolor(RED);
cprintf("1.CASH ON DELIVERY ");
cprintf("2.ONLINE PAYMENT ");
cprintf("3.GO TO BACK MENU ");
cprintf("0.EXIT ");
label12:
textcolor(YELLOW);
cprintf("Enter your option(1-4):");
scanf("%d",&op13);
switch(op13)
{
case 1:
clrscr();
title();
buy_book();
break;
case 2:
textcolor(BROWN);
clrscr();
title();
atm_cards();
clrscr(); // Clear the out-put screen.
title();
buy_book();
break;
case 3:
clrscr();
title();
all_ebooks(); // Calling function for all ebooks.
break;
case 0:
textcolor(LIGHTMAGENTA);
cprintf("Thank you for visiting eBOOK SHOPPING.");
delay(3000);
exit(0); // To exit the switch.
default:
textcolor(LIGHTCYAN);
cprintf("Invalid option. ");
goto label12;
}
}
void atm_cards() // Called function for ATM Cards.
{
clrscr();
title();
textcolor(RED);
cprintf("1.CREDIT CARD ");
cprintf("2.DEBIT CARD ");
cprintf("3.GO TO BACK MENU ");
cprintf("0.EXIT ");
label13:
textcolor(YELLOW);
cprintf("Enter your option((1-4):");
scanf("%d",&op12);
switch(op12)
{
case 1:
clrscr();
title();
card_num();
break;
case 2:
clrscr();
title();
card_num();
break;
case 3:
clrscr();
title();
all_ebooks(); // Calling function for all ebooks.
break;
case 0:
textcolor(LIGHTMAGENTA);
cprintf("Thank you for visiting eBOOK SHOPPING.");
delay(3000);
exit(0);
default:
textcolor(LIGHTCYAN);
cprintf("Invalid option ");
cprintf("Enter correct option. ");
goto label13;
}
}

void card_num() // Called function for Card Num.
{
label14:
textcolor(LIGHTMAGENTA);
cprintf("Enter your 16 digit card number:");
scanf("%s",&cardnum);
for(i=0;cardnum[i]!='\0';i++)
{
if(cardnum[i]>='0' && cardnum[i]<='9')
{ // To check given string is digits or not.
}
else
{
textcolor(LIGHTCYAN);
cprintf("The card number contains only digits. ");
goto label14;
}
}
if(i==16) // To check Card number contains 16 digits or not.
{
}
else
{
textcolor(LIGHTCYAN);
cprintf("Enter only 16 digit card number. ");
goto label14;
}
label15:
textcolor(LIGHTMAGENTA);
cprintf("Enter your name on card without any spaces:");
scanf("%s",&name1);
for(i=0;name1[i]!='\0';i++)
{
if((name1[i]>='a' && name1[i]<='z') || (name1[i]>='A' && name1[i]<='Z'))
{ // To check given string collection of alphaberts or not.
}
else
{
textcolor(LIGHTCYAN);
cprintf("The name contains only alphabets. ");
goto label15;
}
}
label16:
textcolor(LIGHTMAGENTA);
cprintf("Enter card valid year and month(MMYYYY):");
scanf("%s",&month_year);
for(i=0;month_year[i]!='\0';i++)
{
if(month_year[i]>='0' && month_year[i]<='9')
{ // To check given string is digits or not.
}
else
{
textcolor(LIGHTCYAN);
cprintf("Enter digits only. ");
goto label16;
}
}
if(i==6) // To check card validity contains 6 digits or not.
{
}
else
{
textcolor(LIGHTCYAN);
cprintf("Enter only 6 digits like 122022. ");
goto label16;
}
label17:
textcolor(LIGHTMAGENTA);
cprintf("Enter last three digits of cvv number:");
scanf("%s",&cvv);
for(i=0;cvv[i]!='\0';i++)
{
if(cvv[i]>='0' && cvv[i]<='9') // To check given string is digits or not.
{
}
else
{
textcolor(LIGHTCYAN);
cprintf("Enter digits only. ");
goto label17;
}
}
if(i==3)
{
}
else
{
textcolor(LIGHTCYAN);
cprintf("Enter only 3 digits like 022. ");
goto label17;
}
textcolor(LIGHTRED);
cprintf("LOADING......PLZ WAIT ");
for(i=0;i<27;i++)
{
textcolor(LIGHTRED);
cprintf("%3c",222);
delay(120);
}
textcolor(YELLOW);
cprintf(" Your transaction is complete. ");
textcolor(LIGHTCYAN);
cprintf("PLZ..........WAIT ");
delay(2000);
}

void buy_book() // called function or for download & buy a book.
{
label18:
textcolor(LIGHTMAGENTA);
cprintf("Enter your name without any spaces:");
scanf("%s",&name);
for(i=0;name[i]!='\0';i++)
{
if((name[i]>='a' && name[i]<='z') || (name[i]>='A' && name[i]<='Z'))
{ // To check given string collection of alphaberts or not.
}
else
{
textcolor(LIGHTCYAN);
cprintf("The name contains only alphabets. ");
goto label18;
}
}
label19:
textcolor(LIGHTMAGENTA);
cprintf("Enter your 10 digit phone number:");
scanf("%s",&phnum);
for(i=0;phnum[i]!='\0';i++)
{
if(phnum[i]>='0' && phnum[i]<='9') // To check given string is digits or not.
{
}
else
{
textcolor(LIGHTCYAN);
cprintf("The phone number contains only digits. ");
goto label19;
}
}
if(i==10) // To check phone number contains 10 digits or not.
{
}
else
{
textcolor(LIGHTCYAN);
cprintf("Enter only 10 digit phone number. ");
goto label19;
}
textcolor(LIGHTMAGENTA);
cprintf("Enter your Address without any spaces:");
scanf("%s",&addrs);
textcolor(GREEN);
cprintf("LOADING................PLZ WAIT ");
for(i=0;i<20;i++)
{
textcolor(LIGHTBLUE);
cprintf("%4c",221);
delay(200);
}
textcolor(BROWN);
cprintf("Your order is successfully placed. ");
cprintf("With in three to four days the book is delivered. ");
}

void down_bar() // Called function for Download Bar.
{
textcolor(LIGHTMAGENTA);
cprintf("Book is Downloading........... ");
for(i=0;i<80;i++)
{
textcolor(LIGHTBLUE);
cprintf("%c",220);
delay(120);
}
textcolor(LIGHTMAGENTA);
printf("Download is complete. ");
}

void suggest_books() // Called function for Suggest books.
{
label20:
textcolor(LIGHTMAGENTA);
cprintf("Enter suggest book name without any spaces:");
scanf("%s",&suggest_book);
for(i=0;suggest_book[i]!='\0';i++)
{
if((suggest_book[i]>='a' && suggest_book[i]<='z') || (suggest_book[i]>='A' && suggest_book[i]<='Z'))
{ // To check given string collection of alphaberts or not.
textcolor(BROWN);
cprintf("Thank you for suggesting. ");
cprintf("I will try to add this book with in 24 Hours. ");
break;
}
else
{
textcolor(LIGHTCYAN);
cprintf("The book name contains only alphabets. ");
goto label20;
}
}
}

void back_menus() // Called function for Back menus.
{
for(j=0;j<=10;j++) // Repeat this function upto condition fails.
{
textcolor(RED);
cprintf("1.GO TO BACK MENU ");
cprintf("2.GO TO MAIN MENU ");
cprintf("0.EXIT. ");
j++;
label21:
textcolor(YELLOW);
cprintf("Enter your option(1-3):");
scanf("%d",&op9);
switch(op9)
{
case 1:
clrscr();
title();
if(op2==3)
{
business_books();
down_buy_books();
}
else
{
if(op2==4)
{
children_books();
down_buy_books();
}
else
{
if(op3==1)
{
cse_books();
down_buy_books();
}
else
{
if(op3==2)
{
ece_books();
down_buy_books();
}
else
{
if(op3==3)
{
civil_books();
down_buy_books();
}
else
{
if(op3==4)
{
mech_books();
down_buy_books();
}
else
{
if(op3==5)
{
eee_books();
down_buy_books();
}
}
}
}
}
}
}
break;
case 2:
clrscr();
title();
if(op2==3 || op2==4)
{
all_ebooks();
}
else
{
if(op3==1 || op3==2 || op3==3 || op3==4 || op3==5)
{
engineering_books();
}
}
break;
case 0:
textcolor(LIGHTMAGENTA);
cprintf("Thank you for visiting eBOOK SHOPPING.");
delay(3000);
exit(0); // To exit the switch.
default:
textcolor(LIGHTCYAN);
cprintf("Invalid option. ");
cprintf("Enter correct option. ");
goto label21;
}
}
}

void cse_books() // Called function for some cse books.
{
clrscr();
title();
textcolor(MAGENTA);
cprintf("->COMPUTER SCIENCE & ENGINEERING BOOKS ARE:");
printf("\n|=======================================================================| ");
textcolor(LIGHTGREEN);
cprintf("|BOOK NAME: AUTHOR NAME: COST: |");
printf("\n|=======================================================================| ");
printf("|1.C Programming \tE.Balagur Swamy \t350 |");
printf("\n|2.OOP'S Through C++ \tE.Balaguru Swamy \t335 |");
printf("\n|3.R For Every One \tLnder,Pearson \t500 |");
printf("\n|4.Python Programming \tVamsi kurama,pearson \t300 |");
printf("\n|5.Data Structures \tMark Allen Weiss \t400 |");
printf("\n|6.Java programming \tE.Balaguru Swamy \t350 |");
printf("\n|7.Software Engineering \tRajib Mall \t435 |");
printf("\n|8.Computer organization \tCarl Hamacher \t500 |");
printf("\n|9.Web Technologies \tUttam K Roy \t650 |");
printf("\n|10.Computer Networks \tA.Forouzan,Firouz Mosharrf \t600 |");
printf("\n|=======================================================================|\n");
}

void ece_books() // Called function for some ece books.
{
clrscr();
title();
textcolor(MAGENTA);
cprintf("->ELECTRONICS & COMMUNICATION ENGINEERING BOOKS ARE:");
printf("\n|=======================================================================| ");
textcolor(LIGHTGREEN);
cprintf("|BOOK NAME: AUTHOR NAME: COST: |");
printf("\n|=======================================================================| ");
printf("|1.Signals & Systems \tB.P.Lahi \t350 |");
printf("\n|2.Network Analysis \tK.Sathya Prasad \t335 |");
printf("\n|3.Circuit Analysis \tJ.Millman \t500 |");
printf("\n|4.Control Systems \tNagarath & Gopal \t300 |");
printf("\n|5.Analog Communications \tB.P.Lathi \t400 |");
printf("\n|6.Management Science \tVijaya Kumar \t350 |");
printf("\n|7.Linear IC Applications \tRoy choudhury \t435 |");
printf("\n|8.Computer organization \tCarl Hamacher \t500 |");
printf("\n|9.Digital IC Applications \tJ.Bhasker \t650 |");
printf("\n|10.Digital Communications \tSimon Haykin,John Wiley \t600 |");
printf("\n|=======================================================================|\n");
}

void civil_books() // Called function for some civil books.
{
clrscr();
title();
textcolor(MAGENTA);
cprintf("->CIVIL ENGINEERING BOOKS ARE:");
printf("\n|===============================================================| ");
textcolor(LIGHTGREEN);
printf("|BOOK NAME: AUTHOR NAME: COST: |");
printf("\n|===============================================================| ");
printf("|1.Probability & Statistics \tJay Ldevore \t350 |");
printf("\n|2.Strength of Materials-1 \tR.K.Rajput \t335 |");
printf("\n|3.Surveying \tAshok Kumar Jain \t500 |");
printf("\n|4.Fluid Mechanics \tP.N.Modi \t300 |");
printf("\n|5.Strength of Materials-2 \tR.K.Rajput \t400 |");
printf("\n|6.Concrete Technology \tM.S.Shetty \t350 |");
printf("\n|7.Structural Analysis-1 \tS.K.Khanna \t435 |");
printf("\n|8.Management Science \tN.Appa Rao \t500 |");
printf("\n|9.Engineering Geology \tVanitha Agarwal \t650 |");
printf("\n|10.Structural Analysis-2 \tS.K.Khanna \t600 |");
printf("\n|===============================================================|\n");
}

void mech_books() //Called function for some mech books.
{
clrscr();
title();
textcolor(MAGENTA);
cprintf("->MECHANICAL ENGINEERING BOOKS ARE:");
printf("\n|===============================================================| ");
textcolor(LIGHTGREEN);
cprintf("|BOOK NAME: AUTHOR NAME: COST: |");
printf("\n|===============================================================| ");
printf("|1.Mechanics Of Solids \tGH Ryder \t350 |");
printf("\n|2.Thermodynamics \tPK Nag \t335 |");
printf("\n|3.Thermal Eng-1 \tV.Ganesan \t500 |");
printf("\n|4.Production Technology \tA.K.Malik \t300 |");
printf("\n|5.Machine Drawing \tV.V.S.Sastry \t400 |");
printf("\n|6.Dynamics Of Machinary \tJS Rao \t350 |");
printf("\n|7.Design Of Machine Memb's-1 \tV.Bandari \t435 |");
printf("\n|8.Design Of Machine Memb's-2 \tV.Bandari \t500 |");
printf("\n|9.Operations Research \tHamdy A Taha \t650 |");
printf("\n|10.Theramal Engineering-2 \tR.Yadav \t600 |");
printf("\n|===============================================================|\n");
}

void eee_books() // Called function for some eee books.
{
clrscr();
title();
textcolor(MAGENTA);
cprintf("->ELECTRICAL & ELECTRONICS ENGINEERING BOOKS ARE:");
printf("\n|===============================================================| ");
textcolor(LIGHTGREEN);
cprintf("|BOOK NAME: AUTHOR NAME: COST: |");
printf("\n|===============================================================| ");
printf("|1.Signals & Systems \tB.P.Lahi \t350 |");
printf("\n|2.Electro Magnetic Fields \tWilliam H.Hayt \t330 |");
printf("\n|3.Circuit Analysis \tJ.Millman \t500 |");
printf("\n|4.Cntrol Systems \tM.Gopal \t300 |");
printf("\n|5.Electrical Measurements \tE.W.Golding \t400 |");
printf("\n|6.Management Science \tVijaya Kumar \t350 |");
printf("\n|7.Linear IC Applications \tRoy choudhury \t435 |");
printf("\n|8.Management Science \tN.Appa Rao \t500 |");
printf("\n|9.Digital IC Applications \tJ.Bhasker \t650 |");
printf("\n|10.Power Systems \tP.V.Gupta \t600 |");
printf("\n|===============================================================|\n");
}

void business_books() // Called function for some eee books.
{
clrscr();
title();
textcolor(MAGENTA);
cprintf("->SOME BUSINESS PURPOSE BOOKS ARE:");
printf("\n|=======================================================================| ");
textcolor(LIGHTGREEN);
cprintf("|BOOK NAME: AUTHOR NAME: COST: |");
printf("\n|=======================================================================| ");
printf("|1.Zero t0 One \tPeter Thiel and Blake Masters \t315 |");
printf("\n|2.Impatient Optimist \tEdited by Rogak,Lisa \t76 |");
printf("\n|3.Rich Dad Poor Dad \tRobert T.Kiyosak \t300 |");
printf("\n|4.The Intelligent Investor \tBenjamin Graham \t359 |");
printf("\n|5.Business Adventures \tJohn Brooks \t320 |");
printf("\n|6.Deep Work \tCal Newport \t363 |");
printf("\n|7.How Life Works \tAnderew Matthews \t307 |");
printf("\n|8.Indian Greatest CEO's \tSuhel Seth \t349 |");
printf("\n|9.Promote Yourself \tDan Schawbel \t267 |");
printf("\n|10.Your Right First Job \tT.Muralidharan \t135 |");
printf("\n|=======================================================================|\n");
}
void children_books() // Called function for some eee books.
{
clrscr();
title();
textcolor(MAGENTA);
cprintf("->SOME CHILDREN OR KIDS BOOKS ARE:");
printf("\n|===========================================================| ");
textcolor(LIGHTGREEN);
cprintf("|BOOK NAME: AUTHOR NAME: COST: |");
printf("\n|===========================================================| ");
printf("|1.The Book Thief \tMarkus Zusak \t253 |");
printf("\n|2.Pink Pages \tSarah Delmege \t115 |");
printf("\n|3.Kingdom Of Fantasy \tHardcover \t440 |");
printf("\n|4.Great Stories For Kids \tRuskin Bond \t156 |");
printf("\n|5.Amazing Voyage \tHardcover \t192 |");
printf("\n|6.Looking For Alaska \tJohn Green \t259 |");
printf("\n|7.Harry Potter \tJ.K.Rowling \t344 |");
printf("\n|8.Cloud Castle \tThea Stilton \t343 |");
printf("\n|9.All The Bright Places \tJennifer Niven \t236 |");
printf("\n|10.Stories of Birbal \tHardcover,Anant Pai \t260 |");
printf("\n|===========================================================|\n");
}

E-BOOKS SOURCE CODE

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