BasicPizza.java public class BasicPizza { //Declaring instance variables String type; String crust; String ingredients; double cost; //Default Constructor public BasicPizza() { super(); } //Parameterized constructor public BasicPizza(String type) { super(); this.type = type; } //Setters and Getters public String getType() { return type; } public void setType(String type) { this.type = type; } public String getCrust() { return crust; } public void setCrust(String crust) { this.crust = crust; } public String getIngredients() { return ingredients; } public void setIngredients(String ingredients) { this.ingredients = ingredients; } public double getCost() { return cost; } public void setCost() { this.cost = 5; } //toString() method is used to display the contents of the Object.inside it. @Override public String toString() { return \"BasicPizza [type=\" + type + \", crust=\" + crust + \", ingredients=\" + ingredients + \", cost=\" + cost + \"]\"; } } ________________________________________________________________ LiFiCheese.java public class LiFiCheese extends BasicPizza{ //Declaring instance variables private String crust; private double cost; private String ingredients; //Default constructor public LiFiCheese() { super(\"Cheese\"); this.cost=5; } //Setters and getters public void setCrust() { this.crust=\"thin\"; } public String getCrust() { return crust; } public double getCost() { return cost; } public void setCost(double cost) { } public String getIngredients() { return ingredients; } public void setIngredients(String ingredients) { this.ingredients = ingredients; } //toString() method is used to display the contents of the Object.inside it. @Override public String toString() { System.out.println(\"You Ordered :\"); System.out.println(getType()); setCrust(); System.out.println(getCrust()); System.out.println(\"Total Cost of :\"+getCost()); return \"\"; } } __________________________________________________________________________ LiFiPizza.java import java.util.Scanner; public class LiFiPizza extends BasicPizza { //Declaring instance variables private String type; private double cost; private String crust; private String ingredients; //Default constructor public LiFiPizza() { super(); this.type = \"Meat\"; this.cost=5; } //Setters and getters public String getType() { return type; } public void setType(String type) { this.type = type; } public double getCost() { return cost; } public void setCost() { this.cost = this.cost+2; } public String getCrust() { return crust; } public void setCrust(String crust) { if(crust.equals(\"Thin\")) { this.crust=\"Thin\"; } else if(crust.equals(\"Thick\")) { this.crust=\"Thick\"; } } public String getIngredients() { return ingredients; } public void setIngredients(String ingredients) { this.ingredients = ingredients; } //toString() method is used to display the contents of the Object.inside it. @Override public String toString() { System.out.println(\"You Ordered :\"); System.out.println(getType()); System.ou.

1. BasicPizza.java
public class BasicPizza {
//Declaring instance variables
String type;
String crust;
String ingredients;
double cost;
//Default Constructor
public BasicPizza() {
super();
}
//Parameterized constructor
public BasicPizza(String type) {
super();
this.type = type;
}
//Setters and Getters
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getCrust() {
return crust;
}
public void setCrust(String crust) {
this.crust = crust;
}
public String getIngredients() {
return ingredients;
}

2. public void setIngredients(String ingredients) {
this.ingredients = ingredients;
}
public double getCost() {
return cost;
}
public void setCost() {
this.cost = 5;
}
//toString() method is used to display the contents of the Object.inside it.
@Override
public String toString() {
return "BasicPizza [type=" + type + ", crust=" + crust + ", ingredients="
+ ingredients + ", cost=" + cost + "]";
}
}
________________________________________________________________
LiFiCheese.java
public class LiFiCheese extends BasicPizza{
//Declaring instance variables
private String crust;
private double cost;
private String ingredients;
//Default constructor
public LiFiCheese() {
super("Cheese");
this.cost=5;
}
//Setters and getters
public void setCrust()
{
this.crust="thin";

3. }
public String getCrust()
{
return crust;
}
public double getCost() {
return cost;
}
public void setCost(double cost) {
}
public String getIngredients() {
return ingredients;
}
public void setIngredients(String ingredients) {
this.ingredients = ingredients;
}
//toString() method is used to display the contents of the Object.inside it.
@Override
public String toString() {
System.out.println("You Ordered :");
System.out.println(getType());
setCrust();
System.out.println(getCrust());
System.out.println("Total Cost of :"+getCost());
return "";
}
}
__________________________________________________________________________
LiFiPizza.java

4. import java.util.Scanner;
public class LiFiPizza extends BasicPizza {
//Declaring instance variables
private String type;
private double cost;
private String crust;
private String ingredients;
//Default constructor
public LiFiPizza()
{
super();
this.type = "Meat";
this.cost=5;
}
//Setters and getters
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public double getCost() {
return cost;
}
public void setCost() {
this.cost = this.cost+2;
}
public String getCrust() {
return crust;
}
public void setCrust(String crust) {
if(crust.equals("Thin"))
{
this.crust="Thin";

5. }
else if(crust.equals("Thick"))
{
this.crust="Thick";
}
}
public String getIngredients() {
return ingredients;
}
public void setIngredients(String ingredients) {
this.ingredients = ingredients;
}
//toString() method is used to display the contents of the Object.inside it.
@Override
public String toString() {
System.out.println("You Ordered :");
System.out.println(getType());
System.out.println(getIngredients()+"<+$2.00>");
System.out.println(getCrust());
System.out.println("Total Cost of :"+getCost());
return "";
}
}
________________________________________________________________________
LiFiUnit5Ch14.java
import java.util.Scanner;
public class LiFiUnit5Ch14 {
public static void main(String[] args) {
//Creating the reference of BasicPizza
BasicPizza bp=null;
//Declaring variables
String typeOfPizza;

6. //Scanner object is used to get the inputs entered by the user.
Scanner sc=new Scanner(System.in);
System.out.print("What type of pizza would you like :");
typeOfPizza=sc.next();
//If the user enters Meat then the if block will be executed
if(typeOfPizza.equalsIgnoreCase("Meat"))
{
//Creating the LiFiPizza Class Object
bp=new LiFiPizza();
//Getting the users choice whether it is Thin or Thick Crust
System.out.print("Thin or Thick Crust:");
String crust=sc.next();
//Calling he setter method by passing the "Thin" or "Thick" crust
bp.setCrust(crust);
//Which Extra Ingredient user wants will be read
System.out.print("What ingredient, sorry, only 1 :");
String ingredient=sc.next();
//Calling the SetIngredients method by passing the ingredient as input.
bp.setIngredients(ingredient);
bp.setCost();
bp.toString();
}
//If the user enters "cheese" then else-if block will be executed.
else if(typeOfPizza.equalsIgnoreCase("Cheese"))
{
bp=new LiFiCheese();
bp.toString();
}

7. }
}
____________________________________________________________________________
Output1:
What type of pizza would you like :Cheese
You Ordered :
Cheese
thin
Total Cost of :5.0
_______________________________________________________________________
Output2:
What type of pizza would you like :Meat
Thin or Thick Crust:Thin
What ingredient, sorry, only 1 :Pepperoni
You Ordered :
Meat
Pepperoni<+$2.00>
Thin
Total Cost of :7.0
____________________________________________________________________
Output3:
What type of pizza would you like :Meat
Thin or Thick Crust:Thick
What ingredient, sorry, only 1 :Sausage
You Ordered :
Meat
Sausage<+$2.00>
Thick
Total Cost of :7.0
____________________________________________________________________
Solution
BasicPizza.java

8. public class BasicPizza {
//Declaring instance variables
String type;
String crust;
String ingredients;
double cost;
//Default Constructor
public BasicPizza() {
super();
}
//Parameterized constructor
public BasicPizza(String type) {
super();
this.type = type;
}
//Setters and Getters
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public String getCrust() {
return crust;
}
public void setCrust(String crust) {
this.crust = crust;
}
public String getIngredients() {
return ingredients;
}
public void setIngredients(String ingredients) {
this.ingredients = ingredients;

9. }
public double getCost() {
return cost;
}
public void setCost() {
this.cost = 5;
}
//toString() method is used to display the contents of the Object.inside it.
@Override
public String toString() {
return "BasicPizza [type=" + type + ", crust=" + crust + ", ingredients="
+ ingredients + ", cost=" + cost + "]";
}
}
________________________________________________________________
LiFiCheese.java
public class LiFiCheese extends BasicPizza{
//Declaring instance variables
private String crust;
private double cost;
private String ingredients;
//Default constructor
public LiFiCheese() {
super("Cheese");
this.cost=5;
}
//Setters and getters
public void setCrust()
{
this.crust="thin";
}
public String getCrust()

10. {
return crust;
}
public double getCost() {
return cost;
}
public void setCost(double cost) {
}
public String getIngredients() {
return ingredients;
}
public void setIngredients(String ingredients) {
this.ingredients = ingredients;
}
//toString() method is used to display the contents of the Object.inside it.
@Override
public String toString() {
System.out.println("You Ordered :");
System.out.println(getType());
setCrust();
System.out.println(getCrust());
System.out.println("Total Cost of :"+getCost());
return "";
}
}
__________________________________________________________________________
LiFiPizza.java
import java.util.Scanner;
public class LiFiPizza extends BasicPizza {

11. //Declaring instance variables
private String type;
private double cost;
private String crust;
private String ingredients;
//Default constructor
public LiFiPizza()
{
super();
this.type = "Meat";
this.cost=5;
}
//Setters and getters
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public double getCost() {
return cost;
}
public void setCost() {
this.cost = this.cost+2;
}
public String getCrust() {
return crust;
}
public void setCrust(String crust) {
if(crust.equals("Thin"))
{
this.crust="Thin";
}
else if(crust.equals("Thick"))

12. {
this.crust="Thick";
}
}
public String getIngredients() {
return ingredients;
}
public void setIngredients(String ingredients) {
this.ingredients = ingredients;
}
//toString() method is used to display the contents of the Object.inside it.
@Override
public String toString() {
System.out.println("You Ordered :");
System.out.println(getType());
System.out.println(getIngredients()+"<+$2.00>");
System.out.println(getCrust());
System.out.println("Total Cost of :"+getCost());
return "";
}
}
________________________________________________________________________
LiFiUnit5Ch14.java
import java.util.Scanner;
public class LiFiUnit5Ch14 {
public static void main(String[] args) {
//Creating the reference of BasicPizza
BasicPizza bp=null;
//Declaring variables
String typeOfPizza;
//Scanner object is used to get the inputs entered by the user.
Scanner sc=new Scanner(System.in);

13. System.out.print("What type of pizza would you like :");
typeOfPizza=sc.next();
//If the user enters Meat then the if block will be executed
if(typeOfPizza.equalsIgnoreCase("Meat"))
{
//Creating the LiFiPizza Class Object
bp=new LiFiPizza();
//Getting the users choice whether it is Thin or Thick Crust
System.out.print("Thin or Thick Crust:");
String crust=sc.next();
//Calling he setter method by passing the "Thin" or "Thick" crust
bp.setCrust(crust);
//Which Extra Ingredient user wants will be read
System.out.print("What ingredient, sorry, only 1 :");
String ingredient=sc.next();
//Calling the SetIngredients method by passing the ingredient as input.
bp.setIngredients(ingredient);
bp.setCost();
bp.toString();
}
//If the user enters "cheese" then else-if block will be executed.
else if(typeOfPizza.equalsIgnoreCase("Cheese"))
{
bp=new LiFiCheese();
bp.toString();
}
}

14. }
____________________________________________________________________________
Output1:
What type of pizza would you like :Cheese
You Ordered :
Cheese
thin
Total Cost of :5.0
_______________________________________________________________________
Output2:
What type of pizza would you like :Meat
Thin or Thick Crust:Thin
What ingredient, sorry, only 1 :Pepperoni
You Ordered :
Meat
Pepperoni<+$2.00>
Thin
Total Cost of :7.0
____________________________________________________________________
Output3:
What type of pizza would you like :Meat
Thin or Thick Crust:Thick
What ingredient, sorry, only 1 :Sausage
You Ordered :
Meat
Sausage<+$2.00>
Thick
Total Cost of :7.0
____________________________________________________________________