Question

Make a subclass of Offering called Product. Make the Product constructor take a name and price. Implement the missing method. Submit just the Product class.

public abstract class Offering

{ private String name; public Offering(String n) { name = n; }

public abstract double getTotalCost();

public String toString()

{ return name + " costs $" + String.format("%.2f", getTotalCost()); } }

public class Demo1 { public static void main(String[] args)

{ Offering p1 = new Product("iPhone", 999);

Offering p2 = new Product("Movie ticket", 12);

Offering p3 = new Product("Backpack", 25);

Offering p4 = new Product("Toyota Corolla", 19000);

System.out.println(p1);

System.out.println(p2);

System.out.println(p3);

System.out.println(p4); } }

REQURED OUTPUT:

iPhone costs $999.00\n

Movie ticket costs $12.00\n

Backpack costs $25.00\n

Toyota Corolla costs $19000.00\n

Answer 1

All classes code is as follows:

Product.java

*****************************************************************************************************************

public class Product extends Offering{
double cost;
Product(String name,double cost){
super(name);
this.cost = cost;
}
public double getTotalCost(){
return cost;
}
}

*****************************************************************************************************************

Offering.java

*****************************************************************************************************************

public abstract class Offering{
private String name;
public Offering(String n) { name = n; }

public abstract double getTotalCost();

public String toString(){
return name + " costs $" + String.format("%.2f", getTotalCost());
  
}
  
}

*****************************************************************************************************************

Demo1.java

*****************************************************************************************************************

public class Demo1 { public static void main(String[] args)

{ Offering p1 = new Product("iPhone", 999);

Offering p2 = new Product("Movie ticket", 12);

Offering p3 = new Product("Backpack", 25);

Offering p4 = new Product("Toyota Corolla", 19000);

System.out.println(p1);

System.out.println(p2);

System.out.println(p3);

System.out.println(p4); } }

*****************************************************************************************************************

Output: