JAVA programming language

Question

Part I

Write an interface and abstract class for the Ticket that would be used for a ticket-selling application

Part II

Write at least two classes corresponding to different types of Tickets.

Part III

Write a Test class in order to show different functionalities (methods) of the classes written in Part II.

Answer 1

abstract class Ticket { }

interface TicketPrinter { void Print(Ticket ticket); }

class EventTicket extends Ticket implements TicketPrinter

{

protected String eventID;

public EventTicket(String idEventIdStr) { eventID = new String(idEventIdStr); }

public String GetEventID() { return(eventID); }

public void Print(Ticket ticket)

{

System.out.println(eventID);

}

}

class TransportationTicket extends Ticket implements TicketPrinter

{

protected float balance;

public TransportationTicket(float flBalanceAmt) { balance=flBalanceAmt; }

public float GetBalance() { return(balance); }

public void Print(Ticket ticket)

{

System.out.println(balance);

}

}

class TicketMain

{

public static void main(String args[])

{

TransportationTicket busTicket = new TransportationTicket(25.00f);

EventTicket concertTicket = new EventTicket("PJ3246-101");

busTicket.Print(busTicket);

concertTicket.Print(concertTicket);

System.out.println(busTicket.GetBalance());

System.out.println(concertTicket.GetEventID());

}

}