The practice program code is below:

import java.util.*;

public abstract class Pizza {

public enum PizzaSize {

MEDIUM, LARGE, XLARGE;

}

private PizzaSize psize;

private double baseprice;

private List toppings;

public Pizza() {

this.psize = PizzaSize.MEDIUM;

this.baseprice = 0.0;

this.toppings = new LinkedList();

}

public Pizza(PizzaSize size) {

this.psize = size;

this.baseprice = 0.0;

this.toppings = new LinkedList();

}

public void addToppings(String addtoppings) {

this.toppings.add(addtoppings);

double cprice = this.getBaseprice();

cprice += 1.0;

this.setBaseprice(cprice);

}

public void printReceipt() {

System.out.println("Type : " +this.getClass().getSimpleName());

System.out.println("Size : " + this.getPizzaSize().toString());

System.out.println("Toppings : " +Arrays.toString(this.toppings.toArray()));

System.out.println("Receipt : $" +this.getBaseprice());

}

public void setBaseprice(double bp) {

this.baseprice = bp;

}

public double getBaseprice() {

return baseprice;

}

public void setPizzaSlice(PizzaSize size) {

this.psize = size;

}

public PizzaSize getPizzaSize() {

return psize;

}

public void setToppings(List t) {

this.toppings.addAll(t);

}

public List getToppings() {

return toppings;

}

}

import java.util.*;

public class PepperoniPizza extends Pizza {

public enum PExtraToppings{

CHERRY_TOMATO, PARMESAN_CHEESE

}

final double PEPPERONI_BASE_PRICE = 10.00;

final static List PEPPERONI_TOPPINGS = new LinkedList ();

static {

PEPPERONI_TOPPINGS.add("Pepperoni");

PEPPERONI_TOPPINGS.add("Mozarella");

}

public PepperoniPizza () {

super();

setBaseprice(PEPPERONI_BASE_PRICE);

setToppings(PEPPERONI_TOPPINGS);

}

public PepperoniPizza(PizzaSize ppsize) {

super(ppsize);

setBaseprice(PEPPERONI_BASE_PRICE);

setToppings(PEPPERONI_TOPPINGS);

}

@Override

public void addToppings(String etoppings) {

super.addToppings(etoppings);

}

}

(Lab-7 tasks must be submit in icollege due on March o7th 2018) Create Program as same as your Practice Program. 1. Create Main.java as follows *UNCOMMENT FOR YOUR HOMEWORK * Scenario I: * 1. Create a polymorphic object of type ChickenWings * 2. Add 15 wings to it 3. Print receipt 4. Add 1 sauce to it 5, Print receipt (again) *Scenario II * 1. Create a polymorphic object of type ChickenWings *2. Add 20 wings to it * 3. Print receipt * 4. Add a free item (e.g., onion rings) * 5. Add 3 sauce 5, Print receipt (again) (Lab-7 tasks must be submit in icollege due on March o7th 2018) Create Program as same as your Practice Program. 1. Create Main.java as follows *UNCOMMENT FOR YOUR HOMEWORK * Scenario I: * 1. Create a polymorphic object of type ChickenWings * 2. Add 15 wings to it 3. Print receipt 4. Add 1 sauce to it 5, Print receipt (again) *Scenario II * 1. Create a polymorphic object of type ChickenWings *2. Add 20 wings to it * 3. Print receipt * 4. Add a free item (e.g., onion rings) * 5. Add 3 sauce 5, Print receipt (again)