package Inheritance;

public class Ticket {

	int ticketNumber;
	int ticketPrice;

	public Ticket(int ticketNumber) {

		this.ticketNumber = ticketNumber;

	}

	public Ticket() {

	}

	public int getTicketNumber() {
		return ticketNumber;
	}

	public void setTicketNumber(int ticketNumber) {
		this.ticketNumber = ticketNumber;
	}

	public int getTicketPrice() {
		return ticketPrice;
	}

	public void setTicketPrice(int ticketPrice) {
		this.ticketPrice = ticketPrice;
	}

}

// AdvanceTicket Subclass was created with the parent class Ticket
public class AdvanceTicket extends Ticket {

	int ticketNumber;
	int numberOfDaysBeforeEvent;
	int price = 40;

	public int getTicketNumber() {
		return ticketNumber;
	}

	public void setTicketNumber(int ticketNumber) {
		this.ticketNumber = ticketNumber;
	}

	public int getPrice() {
		return price;
	}

	public void setPrice(int price) {
		this.price = price;
	}

	public int getNumberOfDaysBeforeEvent() {
		return numberOfDaysBeforeEvent;
	}

	public void setNumberOfDaysBeforeEvent(int numberOfDaysBeforeEvent) {
		this.numberOfDaysBeforeEvent = numberOfDaysBeforeEvent;
	}

	public AdvanceTicket(int ticketNumber, int daysBeforeEvent) {
		this.ticketNumber = ticketNumber;
		this.numberOfDaysBeforeEvent = daysBeforeEvent;
	}

	public AdvanceTicket() {

	}

	@Override
	public String toString() {

		if (this.getNumberOfDaysBeforeEvent() > 10)
			this.setPrice(30);

		return "Ticket number: " + this.getTicketNumber() + ", price: " + this.getPrice() + "." + " purchased "
				+ this.getNumberOfDaysBeforeEvent() + " days before the event. \n";
	}


}

// subclass for the AdvanceTicket was creted
public class StudentAdvanceTicket extends AdvanceTicket {

	int price = 20;
	int ticketNumber;
	int numberOfDaysBeforeEvent;

	public int getTicketNumber() {
		return ticketNumber;
	}

	public void setTicketNumber(int ticketNumber) {
		this.ticketNumber = ticketNumber;
	}

	public int getPrice() {
		return price;
	}
	
	

	public int getNumberOfDaysBeforeEvent() {
		return numberOfDaysBeforeEvent;
	}

	public void setNumberOfDaysBeforeEvent(int numberOfDaysBeforeEvent) {
		this.numberOfDaysBeforeEvent = numberOfDaysBeforeEvent;
	}

	public void setPrice(int price) {
		this.price = price;
	}

	public StudentAdvanceTicket(int ticketNumber, int days) {
		this.ticketNumber = ticketNumber;
		this.numberOfDaysBeforeEvent = days;

	}

	public StudentAdvanceTicket() {

	}

    // override the toString method to print the values in tickets
	@Override
	public String toString() {
		if (this.getNumberOfDaysBeforeEvent() > 10)
			this.setPrice(15);

		return "Ticket number: " + this.getTicketNumber() + ", price: " + this.getPrice() + "." + " purchased "
				+ this.getNumberOfDaysBeforeEvent() + " days before the event. (ID required) \n";
	}

	public static void main(String args[]) {


        // initialize the StudentAdvanceTicket object
		StudentAdvanceTicket ad = new StudentAdvanceTicket(86, 12);
		StudentAdvanceTicket ad1 = new StudentAdvanceTicket(24, 4);
		StudentAdvanceTicket ad2 = new StudentAdvanceTicket(37, 15);
		StudentAdvanceTicket ad3 = new StudentAdvanceTicket(31, 2);

		System.out.println(ad);
		System.out.println(ad1);
		System.out.println(ad2);
		System.out.println(ad3);

	}

}

Output:

Ticket number: 86, price: 15. purchased 12 days before the event. (ID required) 

Ticket number: 24, price: 20. purchased 4 days before the event. (ID required) 

Ticket number: 37, price: 15. purchased 15 days before the event. (ID required) 

Ticket number: 31, price: 20. purchased 2 days before the event. (ID required)