Question

Program is in C++, program is called airplane reservation. It is suppose to display a screen of seating chart in the format 1 A B C D E F through 10. I had a hard time giving the seats a letter value. It displays a correct screen but when I reserve a new seat the string seats[][] doesn't update to having a X for that seat. Also there is a file for the struct called systemUser.txt it has 4 users in the format 01 Deter Boat username password. The program checks the password and username to see it it's on the list or not. I tried using a flag in the loop but it doesn't work correctly unless it's the last user on the list. So most of the time access is declined. I comment that part out so I could use the other part of the program. Please help the function displaySeats and reservedSeats. And the checkUser function.

*******

PLEASE DON'T ASK FOR MORE INFORMATION, EDITING DOES NOT WORK. SORRY NOT TXT FILES

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



//#define inFile = "systemUser.txt"
using namespace std;
//struct
struct valid_user {

int id;
string first_name;
string last_name;
string username;
string password;
};

const int ROWS = 10; //for rows in airplane
const int COLS = 7;

//protypes for functions
void welcome(); //welcome function
void checkUser(valid_user[]); //username and password match
void menu(); //displays options
void Quit();
void help();
void displaySeats(string[][COLS]);
void reserveSeat(string[][COLS]);
void SaveFile(string[][COLS]);
void cancel(string[][COLS]);

int main() {

ifstream eds; //used to write systemUser
ofstream pds; //used to read text


string seatChar[ROWS][COLS];
int choice; //for menu
string outFile; //used for name of file from user

valid_user check[4]; //max users but should only be 4 users
welcome();
//checkUser(check);


bool repeat = true; //needed for switch loop

while (repeat = true) {
menu();
cout << "-----------------------" << endl;
cout << "Please enter Your Choice (1-7): " << 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:
//cancel(seatChar);
break;

case 4:
SaveFile(seatChar);
break;

case 5:
break;


case 6:

help();
break;

case 7:

repeat = false;
Quit();
break;

default:
cout << "You need to enter a number 1-7" << endl;



}//end of switch


}




eds.close();
pds.close();
system ("pause");

return 0;
}


void welcome() {
cout << "---------------------------------------" << endl;
cout << " WELCOME TO AIR TICKETS SYSTEM " << endl;
cout << "---------------------------------------" << endl;


}

void checkUser(valid_user check[]) {

int number;
string first;
string last;
string user;
string Password;

//user input
string userName;
string userPassword;

ifstream eds; //used to write systemUser
ofstream pds; //used to read text


string inFile;
inFile = "systemUser.txt";

eds.open(inFile.c_str());


//protection if file doesn't open
if (eds.fail()) {


cout << "Error opening system user records fie (systemUser.txt)" << endl;
system("pause");
exit(1);
}

else {
for (int i = 0; i < 4; i++) {
while (eds.eof() == 0) {
eds >> number >> first >> last >> user >> Password;
check[i].id = number;
check[i].first_name = first;
check[i].last_name = last;
check[i].username = user;
check[i].password = Password;


}
}


cout << "Please enter your user: " << endl;
cin >> userName;
cout << "Please enter your password: " << endl;
cin >> userPassword;

cout << "--------------------------------" << endl;

int flag = 0;
for (int i = 0; i < 4; i++) {

if ((userName == check[i].username) && (userPassword == check[i].password)) {

flag = 1;

}
cout << flag << endl;

if (flag == 1) {

cout << "Username and Password match!" << endl;
cout << "ACCESS GRANTED" << endl;

cout << "--------------------------------" << endl;
cout << " WELCOME TO AIR TICKET SYSTEM " << first << " " << last << endl;
cout << "--------------------------------" << endl;
}
else {
cout << "Username and password mismatch, access declined!" << endl;
cout << "Good-bye" << endl;
system("pause");
exit(1);
}
}
}

}




void menu() {

cout << "---------------------------------------" << endl;
cout << " WELCOME TO AIR TICKETS SYSTEM " << endl; //needs to add user first and last name
cout << "---------------------------------------" << endl;
cout << "1. Display Seat Chart" << endl;
cout << "2. Reserve Seat" << endl;
cout << "3. Cancel Reservation" << endl;
cout << "4. Save Seat Chart to File" << endl;
cout << "5. Statistics" << endl;
cout << "6. Help" << endl;
cout << "7. Quit" << endl;


}

void Quit()
{
cout << "Thank You!" << endl;
cout << "Enjoy your Flight" << endl;
system("pause");
exit(0); //Exit the program
}


void help(){
cout << "LOOKS LIKE YOU NEED A LITTLE HELP!!!" << endl;
cout << endl;
cout << "Option 1 Displays the avaible seats " << endl;
cout << "Option 2 Helps you find an avaiable seat to reserve " << endl;
cout << "Option 3 Cancels your reservation " << endl;
cout << "Option 4 Updates the seating chart file " << endl;
cout << "Option 5 Provides all the information about avaiable and reserved seats for flight " << endl;
cout << "Option 6 Brings you back to this screen " << endl;
cout << "Option 7 Quits the program " << endl;
}

void displaySeats(string seats[ROWS][COLS]) {



cout << "\t Window" << "\t" << "Center" << "\t" << "Aisle" << "\t" << "Aisle" << "\t" << "Center" << "\t" << "Window" << endl;
for (int i = 0; i < ROWS; i++) {
cout << i+1;

for (int j = 0; j < COLS; j++) {

if( seats[i][j] == "X"){
seats[i][j] = "X";
cout << seats[i][j] << "\t";

}
else {

seats[i][1] = "A";
seats[i][2] = 'B';
seats[i][3] = 'C';
seats[i][4] = 'D';
seats[i][5] = 'E';
seats[i][6] = 'F';



cout << seats[i][j] << "\t";
}
}

cout << endl;
}//end of else

}

void reserveSeat(string seat[ROWS][COLS]) {
int row;
char col;
cout << "Pleae enter a seat in the form ROW 1-10 and LETTER A-F [example 2B]: " << endl;
cin >> row >> col;
col = toupper(col);

while (((row > ROWS) || (row <= 0)) &&((col != 'A' || 'B'||'C'||'D'||'E'||'F'))) {
cout << "You entered a seat that does not exist!!" << endl;
cout << "Pleae try again" << endl;
cout << "Please enter a number 1-10 for the row and a letter A-F for the column: " << endl;
cin >> row >> col;
col = toupper(col);

}

int colVal;
if (col == 'A') {
colVal = 1;

}

else if (col == 'B') {
colVal = 2;

}
else if (col == 'C') {
colVal = 3;

}

else if (col == 'D') {
colVal = 4;

}

else if (col == 'E') {
colVal = 5;

}

else if (col == 'F') {
colVal = 6;

}

if (seat[row-1][colVal] == "X") {
do {
cout << "Seat is already taken." << endl;
cout << "Please try again!" << endl;
cout << "Pleae enter a seat in the form ROW 1-10 and LETTER A-F [example 2B]: " << endl;
cin >> row >> col;
col = toupper(col);


while (((row > ROWS) || (row <= 0)) && ((col != 'A' || 'B' || 'C' || 'D' || 'E' || 'F'))) {
cout << "You entered a seat that does not exist!!" << endl;
cout << "Pleae try again" << endl;
cout << "Please enter a number 1-10 for the row and a letter A-F for the column: " << endl;
cin >> row >> col;
col = toupper(col);

}


//repeats until seat is not taken
} while (seat[row-1][colVal] == "X");
}



else {

if (col == 'A') {
seat[row-1][1] = "X";
}

else if (col == 'B') {
seat[row - 1][2] = "X";
}

else if (col == 'C') {
seat[row - 1][3] = "X";
}

else if (col == 'D') {
seat[row - 1][4] = "X";
}
else if (col == 'E') {
seat[row - 1][5] = "X";
}
else if (col == 'F') {
seat[row - 1][6] = "X";
}

cout << "Your seat was sucessful reserved!" << endl;
cout << "Seat: " << row << col<<endl;

} //end of else


}



void SaveFile(string seat[ROWS][COLS]) {
ifstream eds;
ofstream pds;

string outFile; //file name from user

cout << "What is the name of the file you would like to open?" << endl;
cout << "Enter file name: " << endl;
cin >> outFile;

eds.open(outFile.c_str());
pds.open("chartIn.txt");
for (int i = 0; i < ROWS; i++) {
for (int j = 0; j < COLS; j++) {
pds << seat[i][j] << " ";
}
pds << endl;

}
}



void cancel(string seat[ROWS][COLS]) {
int row;
char col;

cout << "Sorry to hear you want to cancel your flight" << endl;
cout << "Please enter you seat you'd like to cancel in format, rows 1-10 and column A-F [example 2C]: "<<endl;
cin >> row >> col;
col= toupper(col);

while (((row > ROWS) || (row <= 0)) && ((col != 'A' || 'B' || 'C' || 'D' || 'E' || 'F'))) {

cout << "That seat is not valid!!" << endl;
cout << "Pleae try again" << endl;
cout << "Please enter a number 1-10 for the row and a letter A-F for the column: " << endl;
cin >> row >> col;
col = toupper(col);


}

if (seat[row][col] !="X") {
do {
cout << "Error, you entered a seat that has not be reserved yet!" << endl;
cout << "Try again" << endl;
cout << "Please enter a number 1-10 for the row and a letter A-F for the column: " << endl;
cin >> row >> col;
col = toupper(col);
} while (seat[row][col] != "X");

//cancelling seat



cout << "You cancelled seat: " << row << col << endl;


}//exit after entering resevered seat


//cancel seat when user typed in correctly
else {



}
}

Answer 1

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

//#define inFile "systemUser.txt"
using namespace std;
//struct
struct valid_user {

int id;
string first_name;
string last_name;
string username;
string password;
};

const int ROWS = 10; //for rows in airplane
const int COLS = 7;

//protypes for functions
void welcome(); //welcome function
void checkUser(valid_user[]); //username and password match
void menu(); //displays options
void Quit();
void help();
void displaySeats(string[][COLS]);
void reserveSeat(string[][COLS]);
void SaveFile(string[][COLS]);
void cancel(string[][COLS]);
void initSeatChar(string[][COLS]);

int main() {

ifstream eds; //used to write systemUser
ofstream pds; //used to read text

string seatChar[ROWS][COLS];
initSeatChar(seatChar);

int choice; //for menu
string outFile; //used for name of file from user

valid_user check[4]; //max users but should only be 4 users
welcome();
checkUser(check);

bool repeat = true; //needed for switch loop

while (repeat = true) {
menu();
cout << "-----------------------" << endl;
cout << "Please enter Your Choice (1-7): " << 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:
//cancel(seatChar);
break;

case 4:
SaveFile(seatChar);
break;

case 5:
break;

case 6:

help();
break;

case 7:

repeat = false;
Quit();
break;

default:
cout << "You need to enter a number 1-7" << endl;

}//end of switch

}

eds.close();
pds.close();
system ("pause");

return 0;
}

void initSeatChar(string seats[][COLS])
{
for(int i=0; i<ROWS; i++)
{
char buffer[5];
itoa(i+1, buffer, 10);
seats[i][0] = buffer;
seats[i][1] = "A";
seats[i][2] = "B";
seats[i][3] = "C";
seats[i][4] = "D";
seats[i][5] = "E";
seats[i][6] = "F";
}

}

void welcome() {
cout << "---------------------------------------" << endl;
cout << " WELCOME TO AIR TICKETS SYSTEM " << endl;
cout << "---------------------------------------" << endl;

}

void checkUser(valid_user check[]) {

int number;
string first;
string last;
string user;
string Password;

//user input
string userName;
string userPassword;

ifstream eds; //used to write systemUser
ofstream pds; //used to read text

string inFile;
inFile = "systemUser.txt";

eds.open(inFile.c_str());

//protection if file doesn't open
if (eds.fail()) {

cout << "Error opening system user records fie (systemUser.txt)" << endl;
system("pause");
exit(1);
}

else {

cout << "Please enter your user: " << endl;
cin >> userName;
cout << "Please enter your password: " << endl;
cin >> userPassword;

cout << "--------------------------------" << endl;

int flag = 0;

while (eds) {
eds >> number >> first >> last >> user >> Password;

if ((userName == user) && (userPassword == Password))
{
flag = 1;
break;
}
}

cout << flag << endl;

if (flag == 1) {

cout << "Username and Password match!" << endl;
cout << "ACCESS GRANTED" << endl;

cout << "--------------------------------" << endl;
cout << " WELCOME TO AIR TICKET SYSTEM " << first << " " << last << endl;
cout << "--------------------------------" << endl;
}
else {
cout << "Username and password mismatch, access declined!" << endl;
cout << "Good-bye" << endl;
system("pause");
exit(1);
}
}
}

void menu() {

cout << "---------------------------------------" << endl;
cout << " WELCOME TO AIR TICKETS SYSTEM " << endl; //needs to add user first and last name
cout << "---------------------------------------" << endl;
cout << "1. Display Seat Chart" << endl;
cout << "2. Reserve Seat" << endl;
cout << "3. Cancel Reservation" << endl;
cout << "4. Save Seat Chart to File" << endl;
cout << "5. Statistics" << endl;
cout << "6. Help" << endl;
cout << "7. Quit" << endl;

}

void Quit()
{
cout << "Thank You!" << endl;
cout << "Enjoy your Flight" << endl;
system("pause");
exit(0); //Exit the program
}

void help(){
cout << "LOOKS LIKE YOU NEED A LITTLE HELP!!!" << endl;
cout << endl;
cout << "Option 1 Displays the available seats " << endl;
cout << "Option 2 Helps you find an available seat to reserve " << endl;
cout << "Option 3 Cancels your reservation " << endl;
cout << "Option 4 Updates the seating chart file " << endl;
cout << "Option 5 Provides all the information about available and reserved seats for flight " << endl;
cout << "Option 6 Brings you back to this screen " << endl;
cout << "Option 7 Quits the program " << endl;
}

void displaySeats(string seats[ROWS][COLS]) {

cout << "\tWindow" << "\t" << "Center" << "\t" << "Aisle" << "\t" << "Aisle" << "\t" << "Center" << "\t" << "Window" << endl;
for (int i = 0; i < ROWS; i++) {

for (int j = 0; j < COLS; j++) {

cout << seats[i][j] << "\t";
}

cout << endl;
}//end of else

}

void reserveSeat(string seat[ROWS][COLS]) {
int row;
char col;
cout << "Pleae enter a seat in the form ROW 1-10 and LETTER A-F [example 2B]: " << endl;
cin >> row >> col;
col = toupper(col);

while (((row > ROWS) || (row <= 0)) &&((col != 'A' || 'B'||'C'||'D'||'E'||'F'))) {
cout << "You entered a seat that does not exist!!" << endl;
cout << "Please try again" << endl;
cout << "Please enter a number 1-10 for the row and a letter A-F for the column: " << endl;
cin >> row >> col;
col = toupper(col);

}

int colVal;
if (col == 'A') {
colVal = 1;

}

else if (col == 'B') {
colVal = 2;

}
else if (col == 'C') {
colVal = 3;

}

else if (col == 'D') {
colVal = 4;

}

else if (col == 'E') {
colVal = 5;

}

else if (col == 'F') {
colVal = 6;

}

if (seat[row-1][colVal] == "X") {
do {
cout << "Seat is already taken." << endl;
cout << "Please try again!" << endl;
cout << "Please enter a seat in the form ROW 1-10 and LETTER A-F [example 2B]: " << endl;
cin >> row >> col;
col = toupper(col);

while (((row > ROWS) || (row <= 0)) && ((col != 'A' || 'B' || 'C' || 'D' || 'E' || 'F'))) {
cout << "You entered a seat that does not exist!!" << endl;
cout << "Pleae try again" << endl;
cout << "Please enter a number 1-10 for the row and a letter A-F for the column: " << endl;
cin >> row >> col;
col = toupper(col);

}

//repeats until seat is not taken
} while (seat[row-1][colVal] == "X");
}

else {

if (col == 'A') {
seat[row-1][1] = "X";
}

else if (col == 'B') {
seat[row - 1][2] = "X";
}

else if (col == 'C') {
seat[row - 1][3] = "X";
}

else if (col == 'D') {
seat[row - 1][4] = "X";
}
else if (col == 'E') {
seat[row - 1][5] = "X";
}
else if (col == 'F') {
seat[row - 1][6] = "X";
}

cout << "Your seat was sucessful reserved!" << endl;
cout << "Seat: " << row << col<<endl;

} //end of else

}

void SaveFile(string seat[ROWS][COLS]) {
ifstream eds;
ofstream pds;

string outFile; //file name from user

cout << "What is the name of the file you would like to open?" << endl;
cout << "Enter file name: " << endl;
cin >> outFile;

eds.open(outFile.c_str());
pds.open("chartIn.txt");
for (int i = 0; i < ROWS; i++) {
for (int j = 0; j < COLS; j++) {
pds << seat[i][j] << " ";
}
pds << endl;

}
}

void cancel(string seat[ROWS][COLS]) {
int row;
char col;

cout << "Sorry to hear you want to cancel your flight" << endl;
cout << "Please enter you seat you'd like to cancel in format, rows 1-10 and column A-F [example 2C]: "<<endl;
cin >> row >> col;
col= toupper(col);

while (((row > ROWS) || (row <= 0)) && ((col != 'A' || 'B' || 'C' || 'D' || 'E' || 'F'))) {

cout << "That seat is not valid!!" << endl;
cout << "Pleae try again" << endl;
cout << "Please enter a number 1-10 for the row and a letter A-F for the column: " << endl;
cin >> row >> col;
col = toupper(col);

}

if (seat[row][col] !="X") {
do {
cout << "Error, you entered a seat that has not be reserved yet!" << endl;
cout << "Try again" << endl;
cout << "Please enter a number 1-10 for the row and a letter A-F for the column: " << endl;
cin >> row >> col;
col = toupper(col);
} while (seat[row][col] != "X");

//cancelling seat

cout << "You cancelled seat: " << row << col << endl;

}//exit after entering resevered seat

//cancel seat when user typed in correctly
else {

}
}

Output:

---------------------------------------
WELCOME TO AIR TICKETS SYSTEM
---------------------------------------
Please enter your user:
user1
Please enter your password:
password1
--------------------------------
1
Username and Password match!
ACCESS GRANTED
--------------------------------
WELCOME TO AIR TICKET SYSTEM Deter Boat
--------------------------------
---------------------------------------
WELCOME TO AIR TICKETS SYSTEM
---------------------------------------
1. Display Seat Chart
2. Reserve Seat
3. Cancel Reservation
4. Save Seat Chart to File
5. Statistics
6. Help
7. Quit
-----------------------
Please enter Your Choice (1-7):
1
----------------------
Seating chart looks like this:
Window Center Aisle Aisle Center Window
1 A B C D E F
2 A B C D E F
3 A B C D E F
4 A B C D E F
5 A B C D E F
6 A B C D E F
7 A B C D E F
8 A B C D E F
9 A B C D E F
10 A B C D E F
---------------------------------------
WELCOME TO AIR TICKETS SYSTEM
---------------------------------------
1. Display Seat Chart
2. Reserve Seat
3. Cancel Reservation
4. Save Seat Chart to File
5. Statistics
6. Help
7. Quit
-----------------------
Please enter Your Choice (1-7):
2
----------------------
Pleae enter a seat in the form ROW 1-10 and LETTER A-F [example 2B]:
2B
Your seat was sucessful reserved!
Seat: 2B
---------------------------------------
WELCOME TO AIR TICKETS SYSTEM
---------------------------------------
1. Display Seat Chart
2. Reserve Seat
3. Cancel Reservation
4. Save Seat Chart to File
5. Statistics
6. Help
7. Quit
-----------------------
Please enter Your Choice (1-7):
1
----------------------
Seating chart looks like this:
Window Center Aisle Aisle Center Window
1 A B C D E F
2 A X C D E F
3 A B C D E F
4 A B C D E F
5 A B C D E F
6 A B C D E F
7 A B C D E F
8 A B C D E F
9 A B C D E F
10 A B C D E F
---------------------------------------
WELCOME TO AIR TICKETS SYSTEM
---------------------------------------
1. Display Seat Chart
2. Reserve Seat
3. Cancel Reservation
4. Save Seat Chart to File
5. Statistics
6. Help
7. Quit
-----------------------
Please enter Your Choice (1-7):
7
----------------------
Thank You!
Enjoy your Flight
Press any key to continue . . .

N.B. I have debug the given code. Now it works fine. Whether you need any help then share with me.