Question

In this assignment, you are required to improve your flight registration system. Your new system should be able to process check-in of passengers and calculate take-off load of planes. You should also use enums to represent menu items such as; (1)Add a new flight. (2)Buy ticket. (3)Request a Check-In. (4) Process a Check-In. (5) Display Valid Check-Ins. (6) Calculate Take-Off Load. (7) Exit. Your application should be able to handle the following new scenarios and requirements: • When a user selects the 4th option, the application should ask user to enter a ticket No to process the Checkin object. The application should traverse the checkInArray, find the Check In object that corresponds to the ticket No. With the Check In object in hand, the program should access the Flight object stored in ticket instance variable of the Checkin. Consequently, the application should compare the departure Time (in Flight) with the checkInTime to not allow check-ins less than 30 minutes before the departureTime. If the difference is greater than or equal to 30 minutes, the valid field in Checkin object should be set to true. (The default value of valid should be false)

JAVA LANGUAGE

int choice;

Scanner in = new Scanner(System.in);

while(true) {

System.out.println();

System.out.println("(1) Add a new flight.");

System.out.println("(2) Buy ticket.");

System.out.println("(3) Request a Check-In.");

Answer 1

package com.java;

import java.util.ArrayList;
import java.util.Scanner;

public class Menu {
   static ArrayList<Flight> flight = new ArrayList<Flight>();
   static ArrayList<Ticketperson> ticket = new ArrayList<Ticketperson>();

   enum List {
       z("Continue"), a("Add a new flight"), b("Buy ticket"), c("Request a Check-In"), d("Process a Check-In"),
       e("Display Valid Check-Ins"), f("Calculate Take-Off Load"), g("Exit");
       private String option;

       List(String option) {
           this.option = option;
       }

       public String getOption() {
           return option;
       }
   }

   public static void Takeoffload() {
       Scanner input = new Scanner(System.in);
       int weight = 0;
       int count = 0;
       int allowedweight = 0;
       System.out.println("Enter the flight no:");
       int Flightno = input.nextInt();
       for (Flight f : Menu.flight) {
           if (f.getFlightno() == Flightno) {
               allowedweight = f.getMaxLoad();
           }

       }
       for (Ticketperson t : Menu.ticket) {
           if (t.checkinflag) {
               count++;
               weight += t.getWeight();
           }
       }
       weight = weight + 80 * count;
       if (allowedweight > weight) {
           System.out.println("Plane can take off");
       } else {
           System.out.println("Plane can't take off");
       }

   }

   public static void validcheckin() {
       for (Ticketperson t : Menu.ticket) {
           if (t.checkinflag) {
               System.out.println("Check-In of " + t.getName() + " " + t.getSurname() + " Ticket No# "
                       + t.getTicketno() + "n" + "From " + Menu.flight.get(0).getOriginCity() + " to "
                       + Menu.flight.get(0).getDestCity() + " Departure Time:" + Menu.flight.get(0).getDay() + "/"
                       + Menu.flight.get(0).getMonth() + "/" + Menu.flight.get(0).getYear() + " "
                       + Menu.flight.get(0).getHour() + ":" + Menu.flight.get(0).getMinute() + "Check-In time: "
                       + t.getDay() + "/" + t.getMonth() + "/" + t.getYear() + " " + t.getHour() + ":" + t.getMinute()
                       + " Luggage Weight: " + t.getWeight());
           }
       }

   }

   public static void ProcessinReq() {
       Scanner input = new Scanner(System.in);
       System.out.println("Enter your ticket no:");
       int ticketNo = input.nextInt();
       for (Ticketperson t : Menu.ticket) {
           if (t.getTicketno() == ticketNo) {
               if (t.getYear() == Menu.flight.get(0).getYear() && t.getMonth() == Menu.flight.get(0).getMonth()
                       && t.getDay() == Menu.flight.get(0).getDay()) {
                   // System.out.println(Menu.flight.get(0).getHour() * 60 +
                   // Menu.flight.get(0).getMinute());
                   // System.out.println(t.getHour() * 60 + t.getMinute());
                   // System.out.println((Menu.flight.get(0).getHour() * 60 +
                   // Menu.flight.get(0).getMinute()) - t.getHour() * 60 + t.getMinute() > 30);
                   if ((Menu.flight.get(0).getHour() * 60 + Menu.flight.get(0).getMinute())
                           - (t.getHour() * 60 + t.getMinute()) > 30) {
                       System.out.println("Check In Declined");
                   } else {
                       t.checkinflag = true;
                   }
               }
           }
       }
   }

   public static void CheckinReq() {
       Scanner input = new Scanner(System.in);
       System.out.println("Enter your ticket no:");
       int ticketNo = input.nextInt();
       for (Ticketperson t : Menu.ticket) {
           if (t.getTicketno() == ticketNo) {
               System.out.println("Enter the weight of luggage");
               t.setWeight(input.nextInt());
               System.out.println("Enter your Check-In Time:");
               System.out.println("Year:");
               t.setYear(input.nextInt());
               System.out.println("Month:");
               t.setMonth(input.nextInt());
               System.out.println("Day:");
               t.setDay(input.nextInt());
               System.out.println("Hour:");
               t.setHour(input.nextInt());
               System.out.println("Minute");
               t.setMinute(input.nextInt());

           }
       }

   }

   public static void BuyTicket() {
       Scanner input = new Scanner(System.in);
       Ticketperson ticket = new Ticketperson();
       System.out.println("Enter the flight no:");
       int Flightno = input.nextInt();
       ticket.setFlightno(Flightno);
       for (Flight f : Menu.flight) {
           if (f.getFlightno() == Flightno) {
               System.out.println("Enter your Passenger Information;");
               System.out.println("Your Name");
               ticket.setName(input.next());
               System.out.println("Your Surname");
               ticket.setSurname(input.next());
               System.out.println("Enter your seat no");
               ticket.setSeatno(input.next());
               System.out.println("Enter your class");
               ticket.setClass1(input.next());
               ticket.setTicketno(++f.ticketno);
               System.out.println("Your Ticket no is :" + ticket.getTicketno());
               Menu.ticket.add(ticket);

           } else {
               System.out.println("Invalid Flight.");
           }
       }

   }

   public static void newFlight() {
       Scanner input = new Scanner(System.in);
       Flight flight = new Flight();
       System.out.println("Enter the flight no:");
       flight.setFlightno(input.nextInt());
       System.out.println("Enter the Departure Time:");
       System.out.println("Year:");
       flight.setYear(input.nextInt());
       System.out.println("Month:");
       flight.setMonth(input.nextInt());
       System.out.println("Day:");
       flight.setDay(input.nextInt());
       System.out.println("Hour:");
       flight.setHour(input.nextInt());
       System.out.println("Minute");
       flight.setMinute(input.nextInt());
       System.out.println("Enter the Origin City:");
       flight.setOriginCity(input.next());
       System.out.println("Enter the Destination City: ");
       flight.setDestCity(input.next());
       System.out.println("Enter the Max Load: ");
       flight.setMaxLoad(input.nextInt());
       Menu.flight.add(flight);

   }

   public static void choice() {
       System.out.println("(1)Add a new flight.");
       System.out.println("(2)Buy ticket.");
       System.out.println("(3)Request a Check-In.");
       System.out.println("(4)Process a Check-In.");
       System.out.println("(5)Display Valid Check-Ins.");
       System.out.println("(6)Calculate Take-Off Load.");
       System.out.println("(7) Exit.");
       System.out.println("Your choice");
   }

   public static void main(String[] args) {

       Scanner input = new Scanner(System.in);
       List choice = List.z;

       while (choice != List.g) {
           choice();
           choice = List.values()[Integer.parseInt(input.nextLine().trim())];
           switch (choice) {
           case a:
               newFlight();
               break;

           case b:
               BuyTicket();
               break;

           case c:
               CheckinReq();
               break;

           case d:
               ProcessinReq();
               break;

           case e:
               validcheckin();
               break;

           case f:
               Takeoffload();
               break;

           default:
               System.out.println("Out of range.");
           }
       }

   }

}

class Flight {
   int flightno;
   int year;
   int month;
   int day;
   int hour;
   int minute;
   String OriginCity;
   String DestCity;
   int maxLoad;
   static int ticketno;

   public int getFlightno() {
       return flightno;
   }

   public void setFlightno(int flightno) {
       this.flightno = flightno;
   }

   public int getYear() {
       return year;
   }

   public void setYear(int year) {
       this.year = year;
   }

   public int getMonth() {
       return month;
   }

   public void setMonth(int month) {
       this.month = month;
   }

   public int getDay() {
       return day;
   }

   public void setDay(int day) {
       this.day = day;
   }

   public int getHour() {
       return hour;
   }

   public void setHour(int hour) {
       this.hour = hour;
   }

   public int getMinute() {
       return minute;
   }

   public void setMinute(int minute) {
       this.minute = minute;
   }

   public String getOriginCity() {
       return OriginCity;
   }

   public void setOriginCity(String originCity) {
       OriginCity = originCity;
   }

   public String getDestCity() {
       return DestCity;
   }

   public void setDestCity(String destCity) {
       DestCity = destCity;
   }

   public int getMaxLoad() {
       return maxLoad;
   }

   public void setMaxLoad(int maxLoad) {
       this.maxLoad = maxLoad;
   }

}

class Ticketperson {
   int flightno;
   int ticketno;
   String name;
   String surname;
   String seatno;
   String Class1;
   int weight;
   int year;
   int month;
   int day;
   int hour;
   int minute;
   boolean checkinflag = false;

   public int getFlightno() {
       return flightno;
   }

   public void setFlightno(int flightno) {
       this.flightno = flightno;
   }

   public int getWeight() {
       return weight;
   }

   public void setWeight(int weight) {
       this.weight = weight;
   }

   public int getYear() {
       return year;
   }

   public void setYear(int year) {
       this.year = year;
   }

   public int getMonth() {
       return month;
   }

   public void setMonth(int month) {
       this.month = month;
   }

   public int getDay() {
       return day;
   }

   public void setDay(int day) {
       this.day = day;
   }

   public int getHour() {
       return hour;
   }

   public void setHour(int hour) {
       this.hour = hour;
   }

   public int getMinute() {
       return minute;
   }

   public void setMinute(int minute) {
       this.minute = minute;
   }

   public int getTicketno() {
       return ticketno;
   }

   public void setTicketno(int ticketno) {
       this.ticketno = ticketno;
   }

   public String getName() {
       return name;
   }

   public void setName(String name) {
       this.name = name;
   }

   public String getSurname() {
       return surname;
   }

   public void setSurname(String surname) {
       this.surname = surname;
   }

   public String getSeatno() {
       return seatno;
   }

   public void setSeatno(String seatno) {
       this.seatno = seatno;
   }

   public String getClass1() {
       return Class1;
   }

   public void setClass1(String class1) {
       Class1 = class1;
   }

}