Question

C++

#include<iostream>
#include<string>
#include<fstream>
#include<cstdlib>

using namespace std;

const int ROWS = 8; //for rows in airplane
const int COLS = 4;

void menu(); //displays options
void displaySeats(char[][COLS]);
void reserveSeat(char [ROWS][COLS]);

int main() {

    int number=0; //holder variable
    char seatChar[ROWS][COLS];

    for (int i = 0; i < ROWS; i++)
    {
        for (int j = 0; j < COLS; j++) {
            seatChar[i][j] = '-';
        }
    }

    int choice; //input from menu

    bool repeat = true; //needed for switch loop

    while (repeat = true) {
        menu();
        cout << "-----------------------" << endl;
        cout << "Please enter Your Choice (1-3): " << endl;
        cin >> choice;
        cout << "----------------------" << endl;

        switch (choice) {

            case 1:
                cout << "Seating chart looks like this:" << endl;
                displaySeats(seatChar);
                break;

            case 2:
                reserveSeat(seatChar);
                break;

            case 3:
                exit(0);
            default:
                cout << "You need to enter a number 1-7" << endl;

        }//end of switch
    }

    return 0;
}

void menu() {

    cout << "  AIR TICKETS SYSTEM " << endl;
    cout << "click [ 1 ] to Display Seat Chart" << endl;
    cout << "click [ 2 ]Reserve Seat" << endl;
    cout << "click [ 3 ] Quit" << endl;

}

void displaySeats(char seats[ROWS][COLS] )
{
    char letter;
    cout<<" 1 2 3 4"<<endl;
    for (int i = 0; i < ROWS; i++) {
        cout <<i+1<<" ";
        for (int j = 0; j < COLS; j++) {
            cout << seats[i][j] << " ";
        }
        cout << endl;
    }
    cout << endl;
}

void reserveSeat(char seat[ROWS][COLS]) {
    int row;
    int col;
    cout << "Please enter a seat in the form ROW 1-8 and 1-4 for the column: [example 2 2]: " << endl;
    cin >> row >> col;
    row--; col--;

    while (((row > ROWS) || (row <= 0)) &&(col > COLS || col<=0)) {
        cout << "You entered a seat that does not exist!" << endl;
        cout << "Please try again" << endl;
        cout << "Please enter a number 1-8 for the row and 1-4 for the column: " << endl;
        cin >> row >> col;
        row--; col--;
    }
    while (seat[row][col] == 'X') {
        cout << "Seat is already taken." << endl;
        cout << "Please try again!" << endl;
        cout << "Please enter a number 1-8 for the row and 1-4 for the column: " << endl;
        cin >> row >> col;
        row--; col--;
    }

    seat[row][col] = 'X';
    cout << "Your seat was successful reserved!" << endl;
}

//////////////////

Use OO paradigm to redo this code. Create a class with at least a data member for storing seats availability. The data member must be a twodimensional array. Your class must also contain a constructor and at least two member functions: one for seat booking and the other for displaying seat availability status.

Answer 1

#include<iostream>
using namespace std;

class Seats{
public:
const static int ROWS = 8; //for rows in airplane
const static int COLS = 4;
char seatChar[ROWS][COLS];
Seats(){
for (int i = 0; i < ROWS; i++)
{
for (int j = 0; j < this->COLS; j++) {
this->seatChar[i][j] = '-';
}
}
}
// ------------------------------------
void getAccess(){
int choice; //input from menu

bool repeat = true; //needed for switch loop

while (repeat = true) {
this->menu();
cout << "-----------------------" << endl;
cout << "Please enter Your Choice (1-3): " << endl;
cin >> choice;
cout << "----------------------" << endl;

switch (choice) {

case 1:
cout << "Seating chart looks like this:" << endl;
this->displaySeats(seatChar);
break;

case 2:
this->reserveSeat(seatChar);
break;

case 3:
exit(0);
default:
cout << "You need to enter a number 1-7" << endl;

}//end of switch
}

}
// ----------------------------------------------
void menu() {

cout << " AIR TICKETS SYSTEM " << endl;
cout << "click [ 1 ] to Display Seat Chart" << endl;
cout << "click [ 2 ]Reserve Seat" << endl;
cout << "click [ 3 ] Quit" << endl;

}
// -----------------------------------------
void displaySeats(char seats[ROWS][COLS] )
{
char letter;
cout<<" 1 2 3 4"<<endl;
for (int i = 0; i < ROWS; i++) {
cout <<i+1<<" ";
for (int j = 0; j < COLS; j++) {
cout << seats[i][j] << " ";
}
cout << endl;
}
cout << endl;
}
// ----------------------------------------------------
void reserveSeat(char seat[ROWS][COLS]) {
int row;
int col;
cout << "Please enter a seat in the form ROW 1-8 and 1-4 for the column: [example 2 2]: " << endl;
cin >> row >> col;
row--; col--;

while (((row > ROWS) || (row <= 0)) &&(col > COLS || col<=0)) {
cout << "You entered a seat that does not exist!" << endl;
cout << "Please try again" << endl;
cout << "Please enter a number 1-8 for the row and 1-4 for the column: " << endl;
cin >> row >> col;
row--; col--;
}
while (seat[row][col] == 'X') {
cout << "Seat is already taken." << endl;
cout << "Please try again!" << endl;
cout << "Please enter a number 1-8 for the row and 1-4 for the column: " << endl;
cin >> row >> col;
row--; col--;
}

seat[row][col] = 'X';
cout << "Your seat was successful reserved!" << endl;
}
// ----------------------------------

};

int main(){
// create object seats and get access
Seats seats;
seats.getAccess();

return 0;
}

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