Sir I have developed a car rental system the source code is not attaching but I am pasting the code here.

#include<iostream>

#include<string>

#include<fstream>

#include<stdlib.h>

#include<Windows.h>

#include<iomanip>

using namespace std;

//prototyping...

void Menu();

void Menu_admin();

void Menu_user();

void Display_cars();

//using template input validation...

template<class T>

void Validation(T& a) {

while (cin.fail()) {

cin.clear();

cin.ignore(INT_MAX, '\n');

cout << "Enter Asked Variable : ";

cin >> a;

}

//class for cars' Information...

class cars {

private:

string car_name;

string car_number;

string colour;

int model;

double price_per_hour;

double price_per_day;

public:

cars() {

price_per_day = 00.0;

price_per_hour = 00.0;

}

string car() {

return car_name;

}

string cnum() {

return car_number;

}

string col() {

return colour;

}

int mod() {

return model;

}

double pph() {

return price_per_hour;

}

double ppd() {

return price_per_day;

}

void SetData(string cname, string cnum, string col, int mod, double p, double pd) {

car_number = cnum;

car_name = cname;

model = mod;

colour = col;

price_per_hour = p;

price_per_day = pd;

}

string carname() {

return car_name;

}

};

//class for person's Information...

//who want to rent a car...

class Person :public cars {

private:

string name;

string address;

string CNIC;

string Number;

public:

string n() {

return name;

}

string add() {

return address;

}

string Cnic() {

return CNIC;

}

string no() {

return Number;

}

void SetData(string n, string ad, string cn, string num) {

name = n;

address = ad;

CNIC = cn;

Number = num;

}

};

void Person_Info(Person& p);

//Information of booked cars...

//only for admins...

class Bookedcar :public cars {

private:

int booked;

public:

Bookedcar() {

booked = 0;

}

void Add() {

booked += 1;

}

void SetBooked(cars& c, Person& p) {

ofstream Write;

Write.open("Cars Info.txt", ios::app);

if (Write.is_open()) {

Write << "BOOKED CAR : " << endl;

Write << "================" << endl << endl;

Write << "\t\tCAR INFO : " << endl;

Write << "\t\t========== " << endl;

Write << "\t\t\t Car Name : " << c.carname() << "\n\t\t\t Car Model : " << c.mod() << "\n\t\t\t Car Number : " << c.cnum() << "\n\t\t\t Car Color : " << c.col() << "\n\n";

Write << "\t\tCUSTOMER INFO : \n";

Write << "\t\t===============\n";

Write << "\t\t\t Name : " << p.n() << "\n\t\t\t CNIC : " << p.Cnic() << "\n\t\t\t Phone Number : " << p.no() << "\n\t\t\t Address : " << p.add() << endl << endl;

}

void GetBooked() {

ifstream Read;

Read.open("Cars Info.txt", ios::in);

char data;

const char* fileName = "Booked cars.txt";

if (Read.is_open()) {

while (!Read.eof()) {

Read >> noskipws >> data;

cout << data;

}

Read.close();

}

else {

cout << "File Not Found ! \n";

}

};

//calculation of total rent...

//depending on rent days etc...

class TotalRent :public cars {

private:

double total;

int days;

double hours;

public:

TotalRent() {

total = hours = 0;

days = 0;

}

int ret_d() {

return days;

}

double ret_h() {

return hours;

}

void SetData1(int d) {

days = d;

}

void SetData2(double h) {

hours = h;

}

double Cal(cars& obj) {

total = obj.ppd() * days;

return total;

}

double Cal2(cars& obj) {

total = obj.pph() * hours;

return total;

}

double GetTotal() {

return total;

}

};

//new function prototype... Qion k classes pass kr ra hn... aur class ka pehle define hna xruri h...

void Show_Rent(cars& c, Person& p, TotalRent& r, int check);

//main...

int main() {

cars Info;

Person data;

Bookedcar booked;

TotalRent Rent;

int choice, use;

do {

Menu();

cout << "\t Enter 1 for admin \n\t Enter 2 for user \n\t Enter 3 to Exit.\n";

do {

cin >> use;

Validation(use);

if (use < 1 || use>3) {

cout << "Enter 1 to 3 : ";

}

} while (use < 1 || use > 3);

system("cls");

string username, pass;

int a = 0;

int bookment;

int nod;

double noh;

int checking;

//switch

switch (use) {

case 1:

Menu_admin();

do {

cout << "Enter your User name ( Minimum 4 Letters... ) : ";

cin >> username;

if (!(username.size() > 3)) {

cout << "Error ! : " << endl;

}

} while (!(username.size() > 3));

do {

cout << "Enter Password ( Minimum 4 Letters... ) : ";

cin >> pass;

if (!(pass.size() > 3)) {

cout << "Error ! : " << endl;

}

} while (!(pass.size() > 3));

system("cls");

Menu_admin();

if (username == "admin") {

a++;

}

if (pass == "pass") {

a++;

}

if (a == 2) {

cout << "Loading the data of Customers who Rented the cars from us... ";

Sleep(4500);

system("cls");

Menu_admin;

cout << endl;

booked.GetBooked();

cout << "Press Any Key to Logout or Go to MAIN menu : ";

}

else {

cout << "Username or Password is Incorrect !!\n\n";

cout << "Press Any Key to go to main menu : ";

}

system("pause");

break;

case 2:

Menu_user();

Display_cars();

cout << "Enter one of the given Number : ";

do {

cin >> choice;

Validation(choice);

if (choice < 1 || choice>5) {

cout << "Enter Number from 1 to 5 : ";

}

} while (choice < 1 || choice>5);

system("cls");

switch (choice) {

case 1:

Info.SetData("Tesla", "STP-3080", "GREY", 2017, 700, 5000);

Menu_user();

cout << "\t Enter 1 to BOOK\n\t Enter 2 to exit. \n ";

do {

cin >> bookment;

Validation(bookment);

if (bookment < 1 || bookment>2) {

cout << "Enter 1 or 2 : ";

}

} while (bookment < 1 || bookment>2);

if (bookment == 1) {

booked.Add();

system("cls");

Menu_user();

cout << "Enter Your Information : \n";

cout << "=========================\n";

Person_Info(data);

booked.SetBooked(Info, data);

system("cls");

Menu_user();

cout << "Enter 1 if you want to Rent A Car for some Days \n";

cout << "Enter 2 if you want to Rent A Car for some Hours \n\n";

do {

cin >> checking;

Validation(checking);

if (checking != 1 && checking != 2) {

cout << "Error ! : " << endl;

}

} while (checking != 1 && checking != 2);

system("cls");

Menu_user();

if (checking == 1) {

cout << "Enter Number of Days you want to Rent A Car : ";

cin >> nod;

Validation(nod);

while (nod < 1) {

cout << "Enter Positive Number of Days : ";

cin >> nod;

Validation(nod);

}

Rent.SetData1(nod);

Rent.Cal(Info);

}

else if (checking == 2) {

cout << "Enter Number of Hours you want to Rent A Car : ";

cin >> noh;

Validation(noh);

while (noh < 1) {

cout << "Enter Positive Number of Hours : ";

cin >> noh;

Validation(noh);

}

Rent.SetData2(noh);

Rent.Cal2(Info);

}

system("cls");

Menu_user();

cout << "\t\t\t\tCalculating and Saving Rent...";

Sleep(3000);

system("cls");

cout << "\t\t\t\t\t\tDisplaying Total Rent...";

Sleep(1000);

system("cls");

Menu_user();

cout << endl;

Show_Rent(Info, data, Rent, checking);

}

else {

break;

}

break;

case 2:

Info.SetData("Prado", "RIX-6878", "BLACK", 2015, 800, 8000);

Menu_user();

cout << "\t Enter 1 to BOOK\n\t Enter 2 to exit. \n ";

do {

cin >> bookment;

Validation(bookment);

if (bookment < 1 || bookment>2) {

cout << "Enter 1 or 2 : ";

}

} while (bookment < 1 || bookment>2);

if (bookment == 1) {

booked.Add();

system("cls");

Menu_user();

cout << "Enter Your Information : \n";

cout << "=========================\n";

Person_Info(data);

booked.SetBooked(Info, data);

system("cls");

Menu_user();

cout << "Enter 1 if you want to Rent A Car for some Days \n";

cout << "Enter 2 if you want to Rent A Car for some Hours \n\n ";

do {

cin >> checking;

Validation(checking);

if (checking != 1 && checking != 2) {

cout << "Error ! : " << endl;

}

} while (checking != 1 && checking != 2);

system("cls");

Menu_user();

if (checking == 1) {

cout << "Enter Number of Days you want to Rent A Car : ";

cin >> nod;

Validation(nod);

while (nod < 1) {

cout << "Enter Positive Number of Days : ";

cin >> nod;

Validation(nod);

}

Rent.SetData1(nod);

Rent.Cal(Info);

}

else if (checking == 2) {

cout << "Enter Number of Hours you want to Rent A Car : ";

cin >> noh;

Validation(noh);

while (noh < 1) {

cout << "Enter Positive Number of Hours : ";

cin >> noh;

Validation(noh);

}

Rent.SetData2(noh);

Rent.Cal2(Info);

}

system("cls");

Menu_user();

cout << "\t\t\t\tCalculating and Saving Rent...";

Sleep(3000);

system("cls");

cout << "\t\t\t\t\t\tDisplaying Total Rent...";

Sleep(1000);

system("cls");

Menu_user();

Show_Rent(Info, data, Rent, checking);

}

break;

case 3:

Info.SetData("Hillux", "MIK-2724", "WHITE", 2013, 900, 10000);

Menu_user();

cout << "\t Enter 1 to BOOK\n\t Enter 2 to exit. \n ";

do {

cin >> bookment;

Validation(bookment);

if (bookment < 1 || bookment>2) {

cout << "Enter 1 or 2 : ";

}

} while (bookment < 1 || bookment>2);

if (bookment == 1) {

booked.Add();

system("cls");

Menu_user();

cout << "Enter Your Information : \n";

cout << "=========================\n";

Person_Info(data);

booked.SetBooked(Info, data);

system("cls");

Menu_user();

cout << "Enter 1 if you want to Rent A Car for some Days \n";

cout << "Enter 2 if you want to Rent A Car for some Hours \n\n";

do {

cin >> checking;

Validation(checking);

if (checking != 1 && checking != 2) {

cout << "Error ! : " << endl;

}

} while (checking != 1 && checking != 2);

system("cls");

Menu_user();

if (checking == 1) {

cout << "Enter Number of Days you want to Rent A Car : ";

cin >> nod;

Validation(nod);

while (nod < 1) {

cout << "Enter Positive Number of Days : ";

cin >> nod;

Validation(nod);

}

Rent.SetData1(nod);

Rent.Cal(Info);

}

else if (checking == 2) {

cout << "Enter Number of Hours you want to Rent A Car : ";

cin >> noh;

Validation(noh);

while (noh < 1) {

cout << "Enter Positive Number of Hours : ";

cin >> noh;

Validation(noh);

}

Rent.SetData2(noh);

Rent.Cal2(Info);

}

system("cls");

Menu_user();

cout << "\t\t\t\tCalculating and Saving Rent...";

Sleep(3000);

system("cls");

cout << "\t\t\t\t\t\tDisplaying Total Rent...";

Sleep(1000);

system("cls");

Menu_user();

Show_Rent(Info, data, Rent, checking);

}

break;

case 4:

Info.SetData("City", "RIM-5498", "BLUE", 2011, 1000, 8000);

Menu_user();

cout << "\t Enter 1 to BOOK\n\t Enter 2 to exit. \n ";

do {

cin >> bookment;

Validation(bookment);

if (bookment < 1 || bookment>2) {

cout << "Enter 1 or 2 : ";

}

} while (bookment < 1 || bookment>2);

if (bookment == 1) {

booked.Add();

system("cls");

Menu_user();

cout << "Enter Your Information : \n";

cout << "=========================\n";

Person_Info(data);

booked.SetBooked(Info, data);

system("cls");

Menu_user();

cout << "Enter 1 if you want to Rent A Car for some Days \n";

cout << "Enter 2 if you want to Rent A Car for some Hours \n\n ";

do {

cin >> checking;

Validation(checking);

if (checking != 1 && checking != 2) {

cout << "Error ! : " << endl;

}

} while (checking != 1 && checking != 2);

system("cls");

Menu_user();

if (checking == 1) {

cout << "Enter Number of Days you want to Rent A Car : ";

cin >> nod;

Validation(nod);

while (nod < 1) {

cout << "Enter Positive Number of Days : ";

cin >> nod;

Validation(nod);

}

Rent.SetData1(nod);

Rent.Cal(Info);

}

else if (checking == 2) {

cout << "Enter Number of Hours you want to Rent A Car : ";

cin >> noh;

Validation(noh);

while (noh < 1) {

cout << "Enter Positive Number of Hours : ";

cin >> noh;

Validation(noh);

}

Rent.SetData2(noh);

Rent.Cal2(Info);

}

system("cls");

Menu_user();

cout << "\t\t\t\tCalculating and Saving Rent...";

Sleep(3000);

system("cls");

cout << "\t\t\t\t\t\tDisplaying Total Rent...";

Sleep(1000);

system("cls");

Menu_user();

Show_Rent(Info, data, Rent, checking);

}

break;

case 5:

break;

}

system("cls");

} while (use != 3);

system("pause");

}

//Menu to show Car rental system Logo...

//at any time...

void Menu() {

cout << "\t\t\t=================================================\n";

cout << "\t\t\t| |\n";

cout << "\t\t\t| ----------------------------- |\n";

cout << "\t\t\t| | CAR RENTAL SYSTEM | |\n";

cout << "\t\t\t| ----------------------------- |\n";

cout << "\t\t\t| |\n";

cout << "\t\t\t| MADE BY : |\n";

cout << "\t\t\t| ----------- |\n";

cout << "\t\t\t| Muhammad Atif Waheed 181319 |\n";

cout << "\t\t\t| |\n";

cout << "\t\t\t=================================================\n\n\n";

}

void Menu_admin() {

cout << "\t\t\t=================================================\n";

cout << "\t\t\t| |\n";

cout << "\t\t\t| ----------------------------- |\n";

cout << "\t\t\t| | CAR RENTAL SYSTEM | |\n";

cout << "\t\t\t| ----------------------------- |\n";

cout << "\t\t\t| |\n";

cout << "\t\t\t| MADE BY : |\n";

cout << "\t\t\t| ----------- |\n";

cout << "\t\t\t| Muhammad Atif Waheed 181319 |\n";

cout << "\t\t\t| |\n";

cout << "\t\t\t=================================================\n\n";

cout << "\t\t\t <<<ADMIN>>> \n\n\n";

}

void Menu_user() {

cout << "\t\t\t=================================================\n";

cout << "\t\t\t| |\n";

cout << "\t\t\t| ----------------------------- |\n";

cout << "\t\t\t| | CAR RENTAL SYSTEM | |\n";

cout << "\t\t\t| ----------------------------- |\n";

cout << "\t\t\t| |\n";

cout << "\t\t\t| MADE BY : |\n";

cout << "\t\t\t| ----------- |\n";

cout << "\t\t\t| Muhammad Atif Waheed 181319 |\n";

cout << "\t\t\t| |\n";

cout << "\t\t\t=================================================\n\n";

cout << "\t\t\t <<<USERS>>> \n\n\n";

}

void Person_Info(Person & p) {

bool check = false;

string fname, lname, name, Number, nic, address;

int a = 0;

do {

a = 0;

cout << "Enter Your First Name ( Minimum 3 Letters... ) : ";

cin.ignore();

getline(cin, fname);

for (int i = 0; i < fname.size(); i++) {

if (!(isalpha(fname[i]))) {

a++;

}

else {

check = false;

}

if (a != 0 || !(fname.size()>=3)) {

cout << "Error ! : " << endl;

check = true;

}

} while (!(fname.size() >= 3) || check == true); // first name

do {

a = 0;

cout << "Enter Your last Name ( Minimum 3 Letters... ) : ";

getline(cin, lname);

for (int i = 0; i < lname.size(); i++) {

if (!(isalpha(lname[i]))) {

a++;

}

else {

check = false;

}

if (a != 0 || !(lname.size()>=3)) {

cout << "Error ! : " << endl;

check = true;

}

} while (!(lname.size() >= 3) || check == true); // last name

name = fname + " " + lname;

do {

a = 0;

cout << "Enter your CNIC ( 13 Digits without Dashes... ) : ";

getline(cin, nic);

for (int i = 0; i < nic.size(); i++) {

if (!(isdigit(nic[i]))) {

a++;

}

else {

check = false;

}

if (a != 0 || nic.size()!=13) {

cout << "Error ! : " << endl;

check = true;

}

} while (!(nic.size() == 13) || check == true); // CNIC

do {

a = 0;

cout << "Enter your Mobile Number ( 11 digits without Dashes... ) : ";

cin >> Number;

for (int i = 0; i < Number.size(); i++) {

if (!(isdigit(Number[i]))) {

a++;

}

else {

check = false;

}

if (a != 0 || Number.size() != 11) {

cout << "Error ! : " << endl;

check = true;

}

} while (!(Number.size() == 11) || check == true); // Number

do {

cout << "Enter you Present Address ( Full & Minimum 6 Letters or Digits... ) : ";

cin.ignore();

getline(cin, address);

} while (!(address.size() > 5)); // Address

p.SetData(name, address, nic, Number); // Setting values to person class setdata function

}

//showing the available cars...

void Display_cars() {

cout << "\t\tPlease Select a Car" << endl;

cout << "\t\tEnter 1 for Tesla 2017." << endl;

cout << "\t\tEnter 2 for Prado 2015." << endl;

cout << "\t\tEnter 3 for Hillux 2017." << endl;

cout << "\t\tEnter 4 for City 2017." << endl;

cout << "\t\tEnter 5 to Exit." << endl;

cout << endl;

}

void Show_Rent(cars & c, Person & p, TotalRent & r, int check) {

cout << "\n\t\t Car Rental - Customer Invoice " << endl;

cout << "\t\t ///////////////////////////////////////////////////////////" << endl;

cout << "\t\t | Invoice No. :" << "------------------|" << setw(18) << "#Cnb81353" << " |" << endl;

cout << "\t\t | Customer Name:" << "-----------------|" << setw(18) << p.n() << " |" << endl;

cout << "\t\t | Car Name :" << "--------------------|" << setw(18) << c.car() << " |" << endl;

cout << "\t\t | Car Model :" << "--------------------|" << setw(18) << c.mod() << " |" << endl;

cout << "\t\t | Car No. :" << "----------------------|" << setw(18) << c.cnum() << " |" << endl;

if (check == 1) {

cout << "\t\t | Number of days :" << "---------------|" << setw(18) << r.ret_d() << " |" << endl;

}

else if (check == 2) {

cout << "\t\t | Number of hours :" << "--------------|" << setw(18) << r.ret_h() << " |" << endl;

}

cout << "\t\t | Your Rental Amount is :" << "--------|" << setw(18) << r.GetTotal() << " |" << endl;

cout << "\t\t | Caution Money :" << "----------------|" << setw(18) << "00" << " |" << endl;

cout << "\t\t | Advanced :" << "---------------------|" << setw(18) << "00" << " |" << endl;

cout << "\t\t ________________________________________________________" << endl;

cout << "\n";

cout << "\t\t | Total Rental Amount is :" << "-------|" << setw(18) << r.GetTotal() << " |" << endl;

cout << "\t\t ________________________________________________________" << endl;

cout << "\t\t # This is a computer generated invoce and it does not" << endl;

cout << "\t\t require an authorised signture #" << endl;

cout << " " << endl;

cout << "\t\t ///////////////////////////////////////////////////////////" << endl;

cout << "\t\t You are advised to pay up the amount before due date." << endl;

cout << "\t\t Otherwise penelty fee will be applied" << endl;

cout << "\t\t ///////////////////////////////////////////////////////////" << endl;

cout << endl << endl;

cout << "\t\t\t\t\t\t\t\t\t\tThanks for Visiting us... \n";

system("pause");

system("cls");

cout << "\t\t\t\t\t\t Loading Main Menu... ";

Sleep(1500);

system("cls");

}

CAR RENTAL SYSTEM in C++

Useful links

Company

Information

Content Writers

Freelancers

Freelance Jobs

Online Jobs

Designers

Developers

Translations