I need a simple interface for this program: It is about booking a ticket online.

ID: 3833174 • Letter: I

Question

I need a simple interface for this program:

It is about booking a ticket online.

/*
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* To change this template file, choose Tools | Templates
* and open the template in the editor.
*/
package javaapplication12;
/**
*
* @author Dell
*/
public class Main {

   public static void main(String[] args) {
       //Customer
//       List<Customer> customers = new ArrayList<Customer>();
//       Customer c = new Customer();
//       customers.add(c);
//Scanner input = new Scanner(System.in);

       System .out.println("Welcome to IIUM Airline");
       int classNeeded = 1;
       int[][] firstArr = new int[2][10];
       int i,j;
       char s='A';
       System.out.println(" 1 2 3 4 5 6 7 8 9 10");
       for(i=0;i<2;i++)
       {
           System.out.print(s+" ");
       s++;
       for(j=0;j<10;j++)
       {
       if(j==3 || j==7)
           System.out.print(" ");
       switch(classNeeded)
       {
       case 1:
           System.out.print(firstArr[i][j]+" ");
       break;

       }
       }
   System.out.println();

}

}
}

/**
*
* @author Dell
*/
public class Passenger {
private String surname = null;
private String forename = null;

public Passenger() {}

   public Passenger( String surname, String forename)
   {
       this.setSurname(surname);
       this.setForename(forename);
   }

   public String getSurname()
   {
       return this.surname;
   }

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

   public String getForename()
   {
       return this.forename;
   }

   public void setForename( String forename)
   {
       this.forename = forename;
   }
}

/**
*
* @author Dell
*/
public class Airport {
private String city = null;

public Airport() {
}

   public Airport( String city) {
       this.setCity(city);
   }

   public String getCity() {
       return this.city;
   }

   public void setCity( String city) {
       this.city = city;
   }
}

/**
*
* @author Dell
*/
   import java.util.*;

   public class Booking {
       private Integer number;
       private final Date date = new Date();
       private Customer customer;
       private List<Passenger> passengers = new ArrayList<Passenger>();

public Booking() {}

       public Booking( Customer customer, List<Passenger> passengers) {
           this.setCustomer(customer);
           this.setPassengers(passengers);
       }


       public Integer getBookingNumber() {
           return this.number;
       }

       public void setBookingNumber( Integer bookingNumber) {
           this.number = bookingNumber;
       }

       public Date getDate() {
           return this.date;
       }

       public Customer getCustomer() {
           return this.customer;
       }

       public void setCustomer( Customer customer) {
           this.customer = customer;
       }

       public List<Passenger> getPassengers() {
           return this.passengers;
       }


       public void setPassengers( List<Passenger> passengers) {
           this.passengers = passengers;
       }
   }

/**
*
* @author Dell
*/
public enum Class {
First,Business,Econ
}

/**
*
* @author Dell
*/
import java.util.*;

   public class Customer {
       private String surname;
       private String forename;
       private String address;
       private String telNum;
       private String eMail;
       private List<Booking> bookings = new ArrayList<Booking>();

       public Customer() {}

       public Customer( String surname, String forename,
               String address, String telNum, String eMail) {
           this.setSurname(surname);
           this.setForename(forename);
           this.setAddress(address);
           this.setTelNum(telNum);
           this.setEMail(eMail);
       }

       public String getSurname() {
           return this.surname;
       }

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

       public String getForename() {
           return this.forename;
       }

       public void setForename( String forename) {
           this.forename=forename;
       }

       public String getAddress() {
           return this.address;
       }

       public void setAddress( String address) {
           this.address = address;
       }

       public String getTelNum() {
           return this.telNum;
       }

       public void setTelNum( String telNum) {
           this.telNum = telNum;
       }

       public String getEMail() {
           return this.eMail;
       }

       public void setEMail(final String eMail) {
           this.eMail = eMail;
       }

       public List<Booking> getBookings() {
           return this.bookings;
       }
   }

/**
*
* @author Dell
*/

import java.util.*;
   public abstract class Flight {
       private Date departureTime = null;
       private Date arrivalTime = null;
       private long validityPeriod = 0;
       private Airport departureAirport = null;
       private Airport arrivalAirport = null;
       private Integer flightNumber = null;

public Flight() {}

       public Flight( Date departureTime, Date arrivalTime,
               Airport departureAirport, Airport arrivalAirport,
               long validityPeriod) {
           this.setDepartureTime(departureTime);
           this.setArrivalTime(arrivalTime);
           this.setDepartureAirport(departureAirport);
           this.setArrivalAirport(arrivalAirport);
           this.setValidityPeriod(validityPeriod);
       }

       public Date getDepartureTime() {
           return this.departureTime;
       }

       public void setDepartureTime(final Date departureTime) {
           if (departureTime != null) {

               if ((this.getArrivalTime() == null)
                       || departureTime.before(this.getArrivalTime())) {
                   this.departureTime = departureTime;
               } else {
                   throw new NullPointerException();
               }
           } else {
               throw new NullPointerException();
           }
       }

       public Date getArrivalTime() {
           return this.arrivalTime;
       }

       void setArrivalTime(final Date arrivalTime) {
           if (arrivalTime != null) {

               if ((this.getDepartureTime() == null)
                       || arrivalTime.after(this.getDepartureTime())) {
                   this.arrivalTime = arrivalTime;
               } else {
                   throw new NullPointerException();
               }
           } else {
               throw new NullPointerException();
           }
       }

       public long getValidityPeriod() {
           return this.validityPeriod;
       }

       public void setValidityPeriod(final long validityPeriod) {
           this.validityPeriod = validityPeriod;
       }

       public Airport getDepartureAirport() {
           return this.departureAirport;
       }

       public void setDepartureAirport(final Airport departureAirport) {
           this.departureAirport = departureAirport;
       }

       public Airport getArrivalAirport() {
           return this.arrivalAirport;
       }

       public void setArrivalAirport(final Airport arrivalAirport) {
           this.arrivalAirport = arrivalAirport;
       }

       public Integer getFlightNumber() {
           return this.flightNumber;
       }

       public void setFlightNumber(final Integer flightNumber) {
           this.flightNumber = flightNumber;
       }


       public long getLength() {
           if ((this.getArrivalTime() != null)
                   && (this.getDepartureTime() != null)) {
               return this.getArrivalTime().getTime()
                       - this.getDepartureTime().getTime();
           } else {
               throw new NullPointerException();
           }
       }
   }

/**
*
* @author Dell
*/
import java.util.*;
public class Level {
   private int r,c,price;
   int ClassNeeded;
   int[][] econArr =new int[15][10];
   int[][] bussArr= new int[3][10];
   int[][] firstArr= new int[2][10];

   public static void main(String[] args)
   {
   Scanner input=new Scanner(System.in);
       Level l= new Level();
           while(true){

               l.setup();
               l.chooseClass();
           System.out.println("==========================================");

           }

           //l.chooseSeat(l.First);

   }
   void setup(){
       int i,j;
       for(i=0;i<15;i++){
       for(j=0;j>10;j++){
       econArr[i][j]=0;
       }
       }
       i=0;j=0;
       for(i=0;i<3;i++){
           for(j=0;j>10;j++){
       bussArr[i][j]=0;
       }
       }
       i=0;j=0;
       for(i=0;i<2;i++){
           for(j=0;j>10;j++){
       firstArr[i][j]=0;
       }
       }
       }
   public   void getEconomicClass()
       {
       printLoop(3, 15 ,10);
       chooseSeat(3);
       printLoop(3, 15 ,10);
       }
   public   void getBusinessClass()
       {
       printLoop(2, 3 ,10);
       chooseSeat(2);
       printLoop(2, 3 ,10);
       }
   public   void getFirstClass()
       {
       printLoop(1,2 ,10);
       chooseSeat(1);
       printLoop(1,2 ,10);
       }
   public   void printLoop(int classNeeded, int row, int column)
       {
       int i,j;
       char s='A';
       System.out.println(" 1 2 3 4 5 6 7 8 9 10");
       for(i=0;i<row;i++)
       {
           System.out.print(s+" ");
       s++;
       for(j=0;j<column;j++)
       {
       if(j==3 || j==7)
           System.out.print(" ");
       switch(classNeeded){
       case 1:
           System.out.print(firstArr[i][j]+" ");
       break;
       case 2:
           System.out.print(bussArr[i][j]+" ");
       break;
       case 3:
           System.out.print(econArr[i][j]+" ");
       break;
       default:
               System.out.println("Press Enter the right level");
           break;

       }
       }
   System.out.println();
       }
       }

   public void chooseClass()
       {
   System.out.print(
       "Choose a Class please.. "
       +"1 Economic $200 for seat "
       +"2 Business $315 for seat "
       +"3 First $535 for seat ");
   Scanner input=new Scanner(System.in);
       int num = input.nextInt();
       switch(num)
       {
       case 1:
       getEconomicClass();
       break;
       case 2:
       getBusinessClass();
       break;
       case 3:
       getFirstClass();
       break;
       default:
           System.out.println("Choose right option please...");
       chooseClass();
       break;

}

       }
   public int chooseSeat(int classNeeded)
       {
       System.out.println("Choose The row for example A3,B2,C6...");
       System.out.println("note: will be extra charge 15% for window seats");
       Scanner input=new Scanner(System.in);
       String seat_no = input.next();

       //char ch = input.next(".").charAt(0);
       char lchar= Character.toLowerCase(seat_no.charAt(0));
       r= lchar-97;

       System.out.println(lchar);

       System.out.println(r);


       //int lc= input.nextInt();
       int lc = seat_no.charAt(1);

       c=lc-49;

       System.out.println(lc);
       System.out.println(c);

       switch(classNeeded)
       {
       case 1:
       firstArr[r][c] = 1;
       price = 535;
       break;
       case 2:
       bussArr[r][c] = 1;
       price = 315;
       break;
       case 3:
       econArr[r][c] = 1;
       price = 200;
       break;
       default:
   System.out.println("Choose right option please...");
chooseClass();
break;
       }
       return price;
       }
}

Explanation / Answer

public class Main {