Question

This is in Java

The Problem:

A common task in computing is to take data and apply changes (called transactions) to the data, then saving the updated data. This is the type of program you will write.

            You will read a file of flight reservation data to be loaded into an array with a max size of 20. A second file will hold the transactions that will be applied to the data that has been stored in the array. At the end of the program, the updated data in the array will be written to a third file.

Flight class

This class will hold the information about a flight. It is responsible for the following data: flight number, flight date, departure airport, arrival airport, departure time, arrival time, and seat assignment. The date will be in the form mm/dd/yyyy. The time will be in the form hh:mm PM. This class should include a default constructor and another constructor that will receive data for all of the instance variables. Also include toString and equals methods. The toString needs to format the data in the form that is needed for output written to the screen in an itinerary. Two Flight classes are considered equal when they have the same flightNumber and flightDate.

Reservation class

This class holds all of the information about a reservation for one person. It will include the passenger’s name (one variable to hold first and last names), reservation number, departure flight and return flight (the flights are objects of the Flight class). Constructors should include a default constructor and another one that accepts values for all of the instance variables. Also include toString and equals methods. The toString needs to format the data in the format of output written to the screen in an itinerary. Reservations are considered to be equal when they have the same reservation number.

Airline class

This class is responsible for holding the array of reservations and all of the methods to process the transactions. Transactions are represented in the file with a numeric code as follows:

Code	Transaction
1	Add a reservation – all data will be the same format as the reservations that are loaded into the array at the beginning of the program.
2	Print the itinerary of one passenger – Printed to the screen
3	Print the itineraries of all of the reservations – Printed to the screen
4	Write list to file – Writes all of the updated reservations in the list to a file

AirlineInput class

There are two input files. The first file, AirlineData.txt, holds all of the existing reservations. This should be read at the beginning of the program and stored in an array. The second file, Transactions.txt, has the transaction codes and data that is associated with each code.

AirlineData.txt format

Transactions.txt format.

Note: each type of transaction requires different input. The code will be followed by the data required for that code. There will be a code and data in one of the following formats.

Transaction code 1

< reservation number>

Transaction code 2

Transaction code 3

Transaction code 4

AirlineOutput class

This class will be responsible for:

Code 2 – Displaying the itinerary for one passenger

Sample output:

Passenger Name: Carl Foreman

Reservation Number: 1234

DepartureFlight:

Flight Number: UA1235

Flight Date: June 23, 2014

Departure Airport: null

Arrival Airport: null

Departure Time: 4:00 PM

Arrival Time: 7:15 PM

Seat: 23A

Return Flight:

Flight Number: UA673

Flight Date: July 12, 2014

Departure Airport: null

Arrival Airport: null

Departure Time: 10:00 AM

Arrival Time: 11:25 AM

Seat: 8A

Note that the date has been changed from the form 04/16/2014 to the form April 16, 2014

Code 3 – Displaying the itineraries for all reservations

This displays the itinerary for each person in the same format as above.

Leave a blank line between each itinerary.

Code 4 – Writing the contents of the array to the fileThis should be in the same format as the input file AirlineData.txt

The data can be left in the format used to display to the screen.

Name this file xxx-UpdatedData.txt where the xxx represents your initials.

AirlineData.txt

Carl Foreman
1234
UA1235
06/23/2014
ORD
LGA
4:00 PM
7:15 PM
23A
UA673
07/12/2014
LGA
ORD
10:00 AM
11:25 AM
8A
Jennifer Foreman
1235
UA1235
06/23/2014
ORD
LGA
4:00 PM
7:15 PM
23B
UA673
07/12/2014
LGA
ORD
10:00 AM
11:25 AM
8B
Jane Anderson
4577
UA317
08/04/2014
ORD
SFO
8:10 AM
10:45 AM
11C
UA728
08/14/2014
SFO
ORD
12:52 PM
7:03 PM
10D
Jason Anderson
4578
UA317
08/04/2014
ORD
SFO
8:10 AM
10:45 AM
11D
UA728
08/14/2014
SFO
ORD
12:52 PM
7:03 PM
10C
Kimberly Jones
8975
UA605
04/20/2014
ORD
DEN
10:00 AM
11:39 AM
25D
UA830
4/29/2014
DEN
ORD
3:39 PM
7:08 PM
30C
Doug Jones
8976
UA605
04/20/2014
ORD
DEN
10:00 AM
11:39 AM
25E
UA830
04/29/2014
DEN
ORD
3:39 PM
7:08 PM
30D

Transactions.txt

1
John Miller
1234
UA1235
06/12/2014
ORD
LGA
4:00 PM
7:15 PM
30F
UA673
06/19/2014
LGA
ORD
10:00 AM
11:25 AM
10E
3
1
Bob Barker
8497
UA317
08/04/2014
ORD
SFO
8:10 AM
10:45 AM
12A
UA728
08/14/2014
SFO
ORD
12:52 PM
7:03 PM
18A
2
1235
2
8976
3
4

Answer 1

package edu.ilstu;

import java.text.SimpleDateFormat;

import java.util.Date;

public class Route {

public final static SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("mm/dd/yyyy");

private int routeNumber;

private Date routeDate;

private String departureTrack;

private String arrivalTrack;

private String arrivalTime;

private String departureTime;

private String seat;

public Route() {

}

public Route(int routeNumber, Date routeDate, String departureTrack, String arrivalTrack, String arrivalTime,

String departureTime, String seat) {

this.routeNumber = routeNumber;

this.departureTrack = departureTrack;

this.arrivalTrack = arrivalTrack;

this.arrivalTime = arrivalTime;

this.departureTime = departureTime;

this.seat = seat;

}

public int getRouteNumber() {

return routeNumber;

}

public void setRouteNumber(int routeNumber) {

this.routeNumber = routeNumber;

}

public Date getRouteDate() {

return routeDate;

}public void setRouteDate(Date routeDate) {

this.routeDate = routeDate;

}

public String getDepartureTrack() {

return departureTrack;

}

public void setDepartureTrack(String departureTrack) {

this.departureTrack = departureTrack;

}

public String getArrivalTrack() {

return arrivalTrack;

}

public void setArrivalTrack(String arrivalTrack) {

this.arrivalTrack = arrivalTrack;

}

public String getArrivalTime() {

return arrivalTime;

}

public void setArrivalTime(String arrivalTime) {

this.arrivalTime = arrivalTime;

}

public String getDepartureTime() {

return departureTime;

}

public void setDepartureTime(String departureTime) {

this.departureTime = departureTime;

}

public String getSeat() {

return seat;

}

public void setSeat(String seat) {

this.seat = seat;

}

@Override

public String toString() {

return "Route Number=" + routeNumber + ", route Date=" + DATE_FORMAT.format(routeDate) + "\n departureTrack:-\n"+ departureTrack + "\narrivalTrack:- \n" + arrivalTrack + ", arrivalTime=" + arrivalTime+ ", departureTime=" + departureTime + ", seat=" + seat;

}

@Override

public int hashCode() {

final int prime = 31;

int result = 1;

result = prime * result + ((routeDate == null) ? 0 : routeDate.hashCode());

result = prime * result + routeNumber;

return result;

}

@Override

public boolean equals(Object obj) {

if (this == obj)

return true;

}

@Override

public boolean equals(Object obj) {

if (this == obj)

return true;

if (obj == null)

return false;

if (getClass() != obj.getClass())

return false;

Route other = (Route) obj;

if (routeDate == null) {

if (other.routeDate != null)

return false;

} else if (!routeDate.equals(other.routeDate))

return false;

if (routeNumber != other.routeNumber)

return false;

return true;

}

}

package edu.ilstu;

public class Reservation {

private String passengerName;

private String reservationNumber;

private Route departureRoute;

private Route returnRoute;

public Reservation() {

}

public Reservation(String name, String reservationNumber, Route departure, Route returnRoute) {

this.passengerName = name;

this.reservationNumber = reservationNumber;

this.departureRoute = departure;

this.returnRoute = returnRoute;

}

public String getPassengerName() {

return passengerName;

}

public void setPassengerName(String passengerName) {this.passengerName = passengerName

}

public String getReservationNumber() {

return reservationNumber;

this.passengerName = passengerName;

}

public String getReservationNumber() {return reservationNumber;}public void setReservationNumber(String reservationNumber) {this.reservationNumber = reservationNumber;}public Route getDepartureRoute() {

return departureRoute;

}

public void setDepartureRoute(Route departureRoute) {

this.departureRoute = departureRoute;

}

public Route getReturnRoute() {

return returnRoute;

}

public void setReturnRoute(Route returnRoute) {

this.returnRoute = returnRoute;

}

@Override

public String toString() {

return "Passenger Name=" + passengerName + ", Reservation Number=" + reservationNumber + ", Departure route="+ departureRoute + ", Return route=" + returnRoute;

}

@Override

public int hashCode() {

public int hashCode() {

final int prime = 31;

int result = 1;

result = prime * result + ((reservationNumber == null) ? 0 : reservationNumber.hashCode());

return result;

}

@Override

public boolean equals(Object obj) {

if (this == obj)

return true;

if (obj == null)

return false;

if (getClass() != obj.getClass())

return false;

Reservation other = (Reservation) obj;

if (reservationNumber == null) {

if (other.reservationNumber != null)

return false;

} else if (!reservationNumber.equals(other.reservationNumber))

return false;

return true;

}

}

package edu.ilstu;

import java.io.File;

import java.io.FileWriter;

import java.io.IOException;

public class Track {

private Reservation[] reservations = new Reservation[40];

public class Track {

private Reservation[] reservations = new Reservation[40];

public Reservation[] getReservations() {

return reservations;

}

public void setReservations(Reservation[] reservations) {

this.reservations = reservations;

}

public boolean addReservation(Reservation reservation) {

for (int i = 0; i < reservations.length; i++) {

if (reservations[i] == null) {

reservations[i] = reservation;

return true;

}

}

return false;

}

}

return false;

}

public void printItinerary(String reservationNumber) {

for (Reservation reservation : reservations) {

if (reservation.getReservationNumber().equals(reservationNumber)) {

System.out.println(reservation);

}

}

}

public void printAllItinerary() {

for (Reservation reservation : reservations) {

System.out.println(reservation);

System.out.println();

}

}

}

}

public void writeToFile(File file) throws IOException {

if (file == null) {

return;

}

if (!file.exists()) {

file.createNewFile();

}

FileWriter fileWriter = new FileWriter(file);

for (Reservation reservation : reservations) {

fileWriter.write(reservation.toString());

}

fileWriter.close();

}

}

package edu.ilstu;

}

package edu.ilstu;

import java.text.SimpleDateFormat;

import java.util.Date;

public class Route {

public final static SimpleDateFormat DATE_FORMAT = new SimpleDateFormat("mm/dd/yyyy");

private int routeNumber;

private Date routeDate;

private String departureTrack;

private String arrivalTrack;

private String arrivalTime;

private String departureTime;

private String seat;

public Route() {

}

public Route(int routeNumber, Date routeDate, String departureTrack, String arrivalTrack, String arrivalTime,

String departureTime, String seat) {

this.routeNumber = routeNumber;

this.departureTrack = departureTrack;

this.arrivalTrack = arrivalTrack;

this.arrivalTime = arrivalTime;

this.departureTime = departureTime;

this.seat = seat;

}

public int getRouteNumber() {

return routeNumber;

}

public void setRouteNumber(int routeNumber) {

this.routeNumber = routeNumber;

}public Date getRouteDate() {

return routeDate;

}

public void setRouteDate(Date routeDate) {

this.routeDate = routeDate;

}

public String getDepartureTrack() {

return departureTrack;

}

public void setDepartureTrack(String departureTrack) {

this.departureTrack = departureTrack;

}

this.departureTrack = departureTrack;

}

public String getArrivalTrack() {

return arrivalTrack;

}

public void setArrivalTrack(String arrivalTrack) {

this.arrivalTrack = arrivalTrack;

}

public String getArrivalTime() {

return arrivalTime;

}

public void setArrivalTime(String arrivalTime) {

this.arrivalTime = arrivalTime;

}

public String getDepartureTime() {

return departureTime;

}

public void setDepartureTime(String departureTime) {

this.departureTime = departureTime;

}

public String getSeat() {

return seat;

}

public void setSeat(String seat) {

this.seat = seat;

}

@Override

public String toString() {

return "Route Number=" + routeNumber + ", route Date=" + DATE_FORMAT.format(routeDate) + "\n departureTrack:-\n"+ departureTrack + "\narrivalTrack:- \n" + arrivalTrack + ", arrivalTime=" + arrivalTime+ ", departureTime=" + departureTime + ", seat=" + seat;+ ", departureTime=" + departureTime + ", seat=" + seat;

}

@Override

public int hashCode() {

final int prime = 31;

int result = 1;

result = prime * result + ((routeDate == null) ? 0 : routeDate.hashCode());

result = prime * result + routeNumber;

return result;

}

@Override

public boolean equals(Object obj) {

if (this == obj)

return true;

if (obj == null)

return false;

if (getClass() != obj.getClass())

return false;

Route other = (Route) obj;

if (routeDate == null) {

if (other.routeDate != null)

return false;

} else if (!routeDate.equals(other.routeDate))

return false;

if (routeNumber != other.routeNumber)

return false;

return true;

}

}

package edu.ilstu;

import java.io.File;

import java.io.IOException;

import java.util.Scanner;

public class TrackOutput {

public void transactions(File file, Track track) throws IOException {

if (file == null || !file.exists()) {

return;

}

Scanner scanner = new Scanner(file);

while (scanner.hasNext()) {

switch (scanner.nextInt()) {

case 1:

String name = scanner.nextLine();

String reservationNUmber = scanner.nextLine();

Route departureRoute = null;

try {

departureRoute = new Route(scanner.nextInt(), Route.DATE_FORMAT.parse(scanner.nextLine()),

scanner.nextLine(), scanner.nextLine(), scanner.nextLine(), scanner.nextLine(),

scanner.nextLine());

} catch (Exception e) {

e.printStackTrace();

}

Route returnRoute = null;

try {

returnRoute = new Route(scanner.nextInt(), Route.DATE_FORMAT.parse(scanner.nextLine()),

scanner.nextLine(), scanner.nextLine(), scanner.nextLine(), scanner.nextLine(),

scanner.nextLine());

} catch (Exception e) {

e.printStackTrace();

}

track.addReservation(new Reservation(name, reservationNUmber, departureRoute, returnRoute));

break;

case 2:

track.printItinerary(scanner.nextLine());

break;

case 3:

track.printAllItinerary();

break;

case 4:

track.writeToFile(new File("UpdatedData.txt"));

break;

default:

break;

}

}

scanner.close();

}

}