Question

C++

• Create a class called Plane, to implement the functionality of the Airline Reservation System.
• Write an application that uses the Plane class and test its functionality.
• Write a method called CheckIn() as part of the Plane class to handle the check in process
• • Prompts the user to enter 1 to select First Class Seat (Choice: 1)
  • Prompts the user to enter 2 to select Economy Seat (Choice: 2)
  • Assume there are only 5-seats for each First Class and Economy
  • When all the seats are taken, display no more seats available for you selection
  • Otherwise it displays the seat that was selected.
  • Repeat until seats are filled in both sections
  • Selections can be made from each class at any time.

Answer 1

// C++ program to implement the functionality of the Airline Reservation System.
#include <iostream>
using namespace std;

class Plane
{
private :
   bool seatEconomy[5]; // array of seats in economy class
   bool seatFirstClass[5]; // array of seats in first class
   // helper functions
   int economyEmptySeat();
   int firstClassEmptySeat();
public:
   Plane();
   void CheckIn();
};

// constructor to initialize all seats in empty status at the start
Plane::Plane()
{
   for(int i=0;i<5;i++)
   {
       seatEconomy[i] = false;
       seatFirstClass[i] = false;
   }
}

// function to return the index of first empty seat in economy class, else -1 if no empty seats
int Plane::economyEmptySeat()
{
   for(int i=0;i<5;i++)
       if(seatEconomy[i] == false)
           return i;
   return -1;
}

// function to return the index of first empty seat in first class, else -1 if no empty seats
int Plane:: firstClassEmptySeat()
{
   for(int i=0;i<5;i++)
       if(seatFirstClass[i] == false)
           return i;
   return -1;
}

// function to allow users to check in until all the seats are reserved
void Plane:: CheckIn()
{
   int choice, index;
   // loop that continues till all the seats are reserved in both economy and first class
   while((economyEmptySeat() != -1) || (firstClassEmptySeat() != -1))
   {
       // input the type of seat
       cout<<endl<<"Please type 1 for first class and press 2 for economy: ";
       cin>>choice;
       if(choice == 1) // first class
       {
           index = firstClassEmptySeat(); // get the index of the next seat free , -1 is first class is full
           // if full, display the message
           if(index == -1)
               cout<<"No more seats available for your selection. "<<endl;
           else
           {
               // allocate the seat and display this information
               seatFirstClass[index] = true;
               cout<<"You have been allocated seat : "<<(index+1)<<" in first class"<<endl;
           }
       }else if(choice == 2) // economy class
       {
           index = economyEmptySeat(); // get the index of the next seat free , -1 is economy is full

           // if full, display the message
           if(index == -1)
               cout<<"No more seats available for your selection. "<<endl;
           else
           {
               // allocate the seat and display this information
               seatEconomy[index] = true;
               cout<<"You have been allocated seat : "<<(index+1)<<" in economy class"<<endl;
           }
       }
       else // invalid choice
           cout<<"Invalid choice"<<endl;
   }

   cout<<"All seats are booked. Thank you for using the application"<<endl;
}

int main() {

   Plane plane; // create an object of Plane class
   plane.CheckIn(); // simulate the process of check in until all seats are booked in the flight
   return 0;
}
//end of program

Output: