Question

Given the following code: IN JAVA

Write the method definiton for missing method 1 that:

• provides the number of pizzas sold as an input parameter
• defines a constant value of $15 for the cost of a single pizza, and uses it in calculations
• returns the total cost of the pizzas sold

Write the method definition for missing method 2 that:

• provides the total cost of the pizzas sold and the tax rate as input parameters
• returns the total with tax

Given the code from the previous questions:

Write the code for missing statement 1 that calls the appropriate method to calculate the pizzaTotal.

Given the code from the previous questions:

Write the code for missing statement 2 that calls the appropriate method to calculate the totalWithTax.

Answer 1

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Program

import java.util.*;
public class pizza
{
//Define constant value for the cost of a single pizza
public static int single_pizza_price = 15;
public static void main(String[] args)
{
Scanner s = new Scanner(System.in);
//Declare variables
double PizzaTotal;
double TotalWithTax,tax_rate;
int no_pizza;
//Read input
System.out.print("Enter Number Of Pizzas :");
no_pizza=s.nextInt();
//Function call to find total cost of pizzas sold
PizzaTotal=total_cost(no_pizza);
//Display result
System.out.println("Total Cost of pizzas :$"+PizzaTotal);

//Read tax rate
System.out.print("Enter tax rate :");
tax_rate=s.nextDouble();
//Function call to find total cost with tax
TotalWithTax=total_tax(PizzaTotal,tax_rate);
//Display result
System.out.println("Total Cost of pizzas with tax:$"+TotalWithTax);
}

public static double total_cost(int no_pizza)
{
return (no_pizza*single_pizza_price);
}

public static double total_tax(double total_cost,double tax_rate)
{
double result;
result=total_cost+(total_cost*(tax_rate/100));
return (result);
}
}

Output

Enter Number Of Pizzas :10
Total Cost of pizzas :$150.0
Enter tax rate :10
Total Cost of pizzas with tax:$165.0

Screenshot of Program

import java.util.*; public class pizza { Define constant value for the cost of a single pizza public static int single_pizza_price = 15; public static void main(String[] args) { Scanner s = new Scanner(System.in); //Declare variables double PizzaTotal; double TotalWithTax, tax_rate; int no_pizza; //Read input System.out.print("Enter Number of Pizzas :"); no_pizza=s.nextInt(); //Function call to find total cost of pizzas sold PizzaTotal=total_cost(no_pizza); 1/Display result System.out.println("Total cost of pizzas :$"+Pizzatotal); 1/Read tax rate System.out.print("Enter tax rate :"); tax_rate=s.nextDouble(); // Function call to find total cost with tax TotalWithTax=total_tax(PizzaTotal, tax rate); //Display result System.out.println("Total cost of pizzas with tax:$"+TotalwithTax); نیا public static double total_cost(int no_pizza) { return (no_pizza*single_pizza_price); ببا public static double total_tax(double total_cost, double tax_rate) { double result; result=total_cost+(total_cost*(tax_rate/100)); return (result); ww