Question

8. Create a class named Pizza that stores details about a pizza. It should contain the following:
14. Instance Variables:
String pizzaSize - to store the size of the pizza (small, medium, or large)
int cheese - the number of cheese toppings
int pepperoni - the number of pepperoni toppings
int mushroom - the number of mushroom toppings
Member Methods:
Constructor - to initialise all the instance variables
CalculateCost() - A public method that returns a double value, that is, the cost of the pizza.
Pizza cost is calculated as follows:
Small: Rs.500 + Rs.25 per topping
Medium: Rs.650 + Rs.25 per topping
Large: Rs.800 + Rs.25 per topping
PizzaDescription() - A public method that returns a String containing the pizza size, quantity of each topping, and the
pizza cost as calculated by CalculateCost().​

Answer 1

Answer:

CalculateCost() - A public method that returns a double value, that is, the cost of the pizza.

Pizza cost is calculated as follows:

Small: Rs.500 + Rs.25 per topping

Medium: Rs.650 + Rs.25 per topping

Large: Rs.800 + Rs.25 per topping

PizzaDescription() - A public method that returns a String containing the pizza size, quantity of each topping, and the

pizza cost as calculated by CalculateCost().

Answer 2

// CompoundInterest.java

import java.util.*;

public class CompoundInterest

{

public static double calculateAmount(double amount,

double rate, int years)

{

if(years <= 0)

return amount;

else

return calculateAmount(amount * (1 + rate / 100),

rate, years - 1);

}

public static void main(String[] args)

{

Scanner console = new Scanner(System.in);

System.out.print(

"Enter the amount of money to deposit: $");

double P = console.nextDouble();

System.out.print("Enter an interest rate per year: $");

double i = console.nextDouble();

System.out.print("Enter the number of years: ");

int n = console.nextInt();

double finalAmount = calculateAmount(P, i, n);

System.out.printf(

"\nFinal amount of money in the savings account: $%.2f", finalAmount);

}

}

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