#include <iostream>
#include <vector>
#include <string>
using namespace std;
class Ticket {
protected:
string passengerName;
int seatNumber;
string pnrNumber;
public:
Ticket(string name, int seat, string pnr) : passengerName(name), seatNumber(seat), pnrNumber(pnr) {}
virtual void displayTicket() = 0;
virtual ~Ticket() {}
string getPNR() const { return pnrNumber; }
};
class EconomyTicket : public Ticket {
public:
EconomyTicket(string name, int seat, string pnr) : Ticket(name, seat, pnr) {}
void displayTicket() override {
cout << "Economy Class Ticket Details:" << endl;
cout << "Passenger Name: " << passengerName << endl;
cout << "Seat Number: " << seatNumber << endl;
cout << "PNR Number: " << getPNR() << endl;
}
};
class BusinessTicket : public Ticket {
public:
BusinessTicket(string name, int seat, string pnr) : Ticket(name, seat, pnr) {}
void displayTicket() override {
cout << "Business Class Ticket Details:" << endl;
cout << "Passenger Name: " << passengerName << endl;
cout << "Seat Number: " << seatNumber << endl;
cout << "PNR Number: " << getPNR() << endl;
}
};
class AirlineReservationSystem {
private:
vector<Ticket*> tickets;
public:
string generatePNR() {
static int counter = 1;
return "PNR" + to_string(counter++);
}
void bookTicket(string name, int seat, string ticketClass) {
string pnr = generatePNR();
Ticket* newTicket;
if (ticketClass == "Economy") {
newTicket = new EconomyTicket(name, seat, pnr);
} else if (ticketClass == "Business") {
newTicket = new BusinessTicket(name, seat, pnr);
} else {
cout << "Invalid ticket class!" << endl;
return;
}
tickets.push_back(newTicket);
cout << "Ticket booked successfully! PNR: " << pnr << endl;
}
void displayAllTickets() {
if (tickets.empty()) {
cout << "No tickets booked yet." << endl;
} else {
cout << "All booked tickets:" << endl;
for (const auto& ticket : tickets) {
ticket->displayTicket();
cout << endl;
}
}
}
void cancelTicket(string pnr) {
for (auto it = tickets.begin(); it != tickets.end(); ++it) {
if ((*it)->getPNR() == pnr) {
delete *it;
tickets.erase(it);
cout << "Ticket with PNR " << pnr << " canceled successfully!" << endl;
return;
}
}
cout << "Ticket with PNR " << pnr << " not found." << endl;
}
~AirlineReservationSystem() {
for (auto& ticket : tickets) {
delete ticket;
}
}
};
int main() {
AirlineReservationSystem airline;
airline.bookTicket("John Doe", 1, "Economy");
airline.bookTicket("Jane Doe", 2, "Business");
airline.bookTicket("Alice Smith", 3, "Economy");
airline.displayAllTickets();
airline.cancelTicket("PNR2");
airline.displayAllTickets();
return 0;
}
Write, Run & Share C++ code online using OneCompiler's C++ online compiler for free. It's one of the robust, feature-rich online compilers for C++ language, running on the latest version 17. Getting started with the OneCompiler's C++ compiler is simple and pretty fast. The editor shows sample boilerplate code when you choose language as C++ and start coding!
OneCompiler's C++ online compiler supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample program which takes name as input and print your name with hello.
#include <iostream>
#include <string>
using namespace std;
int main()
{
string name;
cout << "Enter name:";
getline (cin, name);
cout << "Hello " << name;
return 0;
}
C++ is a widely used middle-level programming language.
When ever you want to perform a set of operations based on a condition If-Else is used.
if(conditional-expression) {
//code
}
else {
//code
}
You can also use if-else for nested Ifs and If-Else-If ladder when multiple conditions are to be performed on a single variable.
Switch is an alternative to If-Else-If ladder.
switch(conditional-expression){
case value1:
// code
break; // optional
case value2:
// code
break; // optional
......
default:
code to be executed when all the above cases are not matched;
}
For loop is used to iterate a set of statements based on a condition.
for(Initialization; Condition; Increment/decrement){
//code
}
While is also used to iterate a set of statements based on a condition. Usually while is preferred when number of iterations are not known in advance.
while (condition) {
// code
}
Do-while is also used to iterate a set of statements based on a condition. It is mostly used when you need to execute the statements atleast once.
do {
// code
} while (condition);
Function is a sub-routine which contains set of statements. Usually functions are written when multiple calls are required to same set of statements which increases re-usuability and modularity. Function gets run only when it is called.
return_type function_name(parameters);
function_name (parameters)
return_type function_name(parameters) {
// code
}