Hi, so i try to convert code that has public class to struct, so for the initial code it will be like this:
however, I try to convert to struct directly but the choice 2,3 and 4 doesn't work
how to make it work, please help me
Code:
#include<iostream>
using namespace std;
#include<conio.h>
#include<string.h>
#include<process.h>
#include<stdio.h>
#include<fstream>
class car
{
public:
int vno;
float count;
char dname[15],x,l[50];
void input()
{
system("CLS");
int d;
cout<<"\n\n\t\tEnter the name of driver : ";
cin>>dname;
cout<<"\n\n\t\tEnter the car no : ";
cin>>vno;
cout<<"\n\n\t\tEnter the no of hours of stay : ";
cin>>count;
cout<<"\n\n\t\tEnter the time slot : ";
cin>>l;
if(d<20&&count<8)
{
cout<<"\n\n\t\tParking Available! You can park your car. ";
}
else
cout<<"\n\n\t\t Parking not possible!!";
cout<<"\n\n\t\tCar got parked!!";
}
void cal()
{
cout<<"\n\t\n\tAre you a V.I.P: y/n ";
cin>>x;
if(x=='y')
{
system("CLS");
cout<<"\n\t\n\tThe total expense during parking ";
cout<<count*20<<" rupees";
}
else
{
system("CLS");
cout<<"\n\t\n\tThe total expenses during parking ";
cout<<count*25<<" rupees";
}
}
void output()
{
cout<<"\n\n\t\tThe Driver Name : "<<dname<<endl;
cout<<"\n\n\t\tThe Car No : "<<vno<<endl;
cout<<"\n\n\t\tThe Hours Of Stay : " <<count;
cout<<"\n\n\t\tThe Time Slot Of Parking : " <<l;
}
}a,a1;
//brought to you by code-projects.org
void delete_record()
{
int n;
system("CLS");
cout<<"\n\n\t\tEnter the car no you want to get depart : ";
cin>>n;
ifstream inFile;
inFile.open("parking3.dat", ios::binary);
ofstream outFile;
outFile.open("temp.dat", ios::out | ios::binary);
while(inFile.read((char*)&a, sizeof(a)))
{
if(a.vno!= n)
{
outFile.write((char*)&a, sizeof(a));
}
}
cout<<"\n\n\t\t Parking Record Deleted";
inFile.close();
outFile.close();
remove("parking3.dat");
rename("temp.dat", "parking3.dat");
}
int main()
{
int login();
login();
int choice,vno1,d;
while(1) {
system("CLS");
cout << "\n\n\t\t ====== CAR PARKING RESERVATION SYSTEM ======";
cout <<"\n\n ";
cout<<" \n\t\t\t======================";
cout << "\n\n\t\t\t 1. Arrival of a Car";
cout << "\n\n\t\t\t 2. Total no of cars Arrived";
cout << "\n\n\t\t\t 3. Total parking charges of all cars with details";
cout << "\n\n\t\t\t 4. Departure of the car";
cout << "\n\n\t\t\t 5. Exit Program";
cout<<" \n\t\t\t======================";
cout << "\n\n";
cout << "\t\t\t Select Your Choice ::";
cin>>choice;
switch(choice)
{
case 1 :
{
char f;
cout<<"\n\n\t\t==Do You Want to continue==y/n ";
cin>>f;
if(f=='y')
{
ofstream f1("parking3.dat",ios::binary|ios::out|ios::app);
a.input();
f1.write((char*)&a,sizeof(a));
}
break;
}
case 2 :
{
system("CLS");
cout << "\n\n\t\t=== View the Records in the Parking Database ===";
cout << "\n";
ifstream infile("parking3.dat",ios::binary|ios::in);
int d=1;
while (infile.read((char *)&a,sizeof (a)))
{
system("CLS");
cout << "\n";
cout<<"\n\n\tThe Car position in parking lot : "<<d;
d++;
a.output();
cout<<"\n";
cout<<"\n\n\n";
system("PAUSE");
cout<<endl;
}
break;
}
case 4:
{
delete_record();
break;
}
case 3:
{
ifstream infile("parking3.dat",ios::binary|ios::in);
while (infile.read((char *)&a,sizeof (a)))
{
cout << "\n";
a.cal();
a.output();
cout<<"\n";
cout<<endl;
}
break;
}
case 5:
{
system("CLS");
cout<<"\n\n\n\t\t\tBrought To You By: code-projects.org \n";
exit(0);
break;
}
default :
{
cout<<"\n\n\t\t Invalid input";
cout<<"\n\n\t\tPress Enter to continue";
}
}
getch();
}}
//cpo
int login(){
string pass ="";
char ch;
cout <<"\n\n\n\n\n\n\n\t\t\t\t\tCar Parking Reservation System Login";
cout << "\n\n\n\n\n\n\n\t\t\t\t\t\tEnter Password: ";
ch = _getch();
while(ch != 13){//character 13 is enter
pass.push_back(ch);
cout << '*';
ch = _getch();
}
if(pass == "pass"){
cout << "\n\n\n\n\t\t\t\t\t Access Granted! Welcome To Our System \n\n";
system("PAUSE");
}else{
cout << "\n\n\n\n\t\t\t\t\tAccess Aborted...Please Try Again!!\n";
system("PAUSE");
system("CLS");
login();
}
}however, I try to convert to struct directly but the choice 2,3 and 4 doesn't work
Code:
//password admin system: pass
#include<iostream>
using namespace std;
#include<conio.h>
#include<string.h>
#include<process.h>
#include<stdio.h>
#include<fstream>
#include<cstdlib>
#include<process.h>
class car
{
public: //public member function can access any private, protected and public member of it's class//
int VehicleNo;
float Hours;
char DriverName[30],Time[50],VIP;
void input() //fetch data needed from the user
{
system("cls"); //to clear the screen
int i;
cout<<"\n\n\t\tEnter the name of driver : ";
cin>>DriverName;
cout<<"\n\n\t\tEnter the car no : ";
cin>>VehicleNo;
cout<<"\n\n\t\tEnter the no of hours of stay : ";
cin>>Hours;
if(i<20 && Hours<8)
{
cout<<"\n\n\t\tParking slot available. You can park your car.";
}
else
cout<<"\n\n\t\t Sorry, parking slot not available for your car.";
}
void cal() //function to calculate parking fees
{
cout<<"\n\t\n\tAre you registered as a V.I.P?: y/n ";
cin>>VIP;
if(VIP=='y')
{
system("cls");
cout<<"\n\t\n\t[VIP] The total of parking fees: ";
cout<<Hours*20<<" ringgit"; //calculate payment for vip member
}
else
{
system("cls");
cout<<"\n\t\n\t[NON-VIP] The total of parking fees: ";
cout<<Hours*25<<" ringgit"; //calculate payment for non-vip member
}
}
void output() //details statement to the user
{
cout<<"\n\n\t\tThe Driver Name : "<<DriverName<<endl;
cout<<"\n\n\t\tThe Car No : "<<VehicleNo<<endl;
cout<<"\n\n\t\tThe Hours Of Stay : " <<Hours;
}
}
a,a1;
void delete_record() //function to delete record after user depart
{
int depart;
system("cls");
cout<<"\n\n\t\tEnter the car no you want to get depart : ";
cin>>depart;
ifstream inFile; //read from the file
inFile.open("parking3.dat", ios::binary); //makes sure the data is read/written without translating new line characters//
ofstream outFile; //write to the file
outFile.open("temp.dat", ios::out | ios::binary);
while(inFile.read((char*)&a, sizeof(a)))
{
if(a.VehicleNo!= depart)
{
outFile.write((char*)&a, sizeof(a));
}
}
cout<<"\n\n\t\t Deleting your parking record...Successful.";
inFile.close(); //close the file
outFile.close();
remove("parking3.dat"); //remove old data file
rename("temp.dat", "parking3.dat"); //rename new data file
}
int main() // main function for the menu
{
int login();
login(); // using login function
int choice,VehicleNo1,i;
while(1)
{
system("cls"); //clear the screen
//printing menu page statement
cout << "\n\n\t\t ====== CAR PARKING RESERVATION SYSTEM ======";
cout <<"\n\n ";
cout<<" \n\t\t\t======================";
cout << "\n\n\t\t\t 1. Arrival of a Car"; //input new data from new car
cout << "\n\n\t\t\t 2. Total no of cars Arrived"; //view total cars arrived
cout << "\n\n\t\t\t 3. Total parking charges of all cars with details"; //view payment data for all car
cout << "\n\n\t\t\t 4. Departure of the car"; //input car departure
cout << "\n\n\t\t\t 5. Exit Program"; //exit the program
cout<<" \n\t\t\t======================";
cout << "\n\n";
cout << "\t\t\t Select Your Choice ::"; //admin input choice either 1,2,3,4 or 5
cin>>choice;
switch(choice) //using switch structure
{
case 1 : //choice 1: car arrival
{
char f;
cout<<"\n\n\t\t==Do You Want to continue==Yes(y)/No(n) ";
cin>>f;
if(f=='y')
{
ofstream f1("parking3.dat",ios::binary|ios::out|ios::app);
a.input();
f1.write((char*)&a,sizeof(a));
}
break;
}
case 2 : //choice 2: viewing total car arrived
{
system("cls");
cout << "\n\n\t\t== Viewing Record in the Parking Database ==";
cout << "\n";
ifstream infile("parking3.dat",ios::binary|ios::in); //reading data from the file
int i=1;
while (infile.read((char *)&a,sizeof (a)))
{
system("cls");
cout << "\n";
cout<<"\n\n\tThe Car position in parking lot : "<<i; //determine car position in the parking
i++;
a.output();
cout<<"\n";
cout<<"\n\n\n";
system("PAUSE");
cout<<endl;
}
break;
}
case 3: //choice 3: details of parking charges of all cars
{
ifstream infile("parking3.dat",ios::binary|ios::in); //reading from the file
while (infile.read((char *)&a,sizeof (a)))
{
cout << "\n";
a.cal(); //function call, which for calculating the payment
a.output();
cout<<"\n";
cout<<endl;
}
break;
}
case 4: //choice 4: car departure
{
delete_record(); //function call to delete the record of car departing
break;
}
case 5: //exit the program
{
system("CLS");
exit(0);
break;
}
default : //default option if admin choose option other than 1,2,3,4 or 5
{
cout<<"\n\n\t\t Invalid input";
cout<<"\n\n\t\tPress Enter to continue";
}
}
getch();
}
}
//function admin login menu
int login()
{
string pass ="";
char ch;
cout <<"\n\n\n\n\n\n\n\t\t\t\t\tCar Parking Reservation System Login";
cout << "\n\n\n\n\n\n\n\t\t\t\t\t\tEnter Password: "; // admin enter the password: pass
ch = _getch();
while(ch != 13) //character 13 is enter
{
pass.push_back(ch);
cout << '*'; //password entered will be in **** form
ch = _getch();
}
if(pass == "pass") //the password entered match
{
cout << "\n\n\n\n\t\t\t\t\tAccess Granted! Welcome To The System \n\n";
system("PAUSE");
}
else //the password entered not match
{
cout << "\n\n\n\n\t\t\t\t\tAccess Aborted. Please Try Again\n";
system("PAUSE");
system("cls");
login();
}
}how to make it work, please help me