Question

Task #1 The if Statement, Comparing Strings, and Flags (JAVA using Eclipse IDE 14)

1. Create the file PizzaOrder.java. Prompt the user to input the type of pizza that they want to order. In the end, you should print out the final order and price. Here is a sample output.

Welcome to May and Adam’s Pizzeria
Enter your first name: Amy

Pizza Size(inches)     Cost
        10            $10.99
        12            $12.99
        14            $14.99
        16            $16.99

What size pizza would you like?
10, 12, 14, or 16 (enter the number only): 12
What type of crust do you want?
  (H)Hand-tossed, (T) Thin-crust, or (D) Deep-dish (enter

   H, T, or D): H
All pizzas come with cheese.
Additional toppings are $1.25 each, choose from:
Pepperoni, Sausage, Onion, Mushroom
   Do you want Pepperoni? (Y/N): n
   Do you want Sausage? (Y/N): n
Do you want Onion? (Y/N): y
   Do you want Mushroom? (Y/N): y

Your order is as follows:
12-inch pizza
Hand-tossed crust
Cheese Onion Mushroom
The cost of your order is: $15.49
The tax is: $1.23
The total due is: $16.72
Your order will be ready for pickup in 30 minutes.

In this task you need to print out the menu, declare your variables, and assign their initial values. You will be able to make selections, but initially you will assign a hand-tossed pizza for your crust and a cost of $12.99 as a base cost for the size of your pizza.

Answer 1

Implementaion in JAVA:

import java.text.DecimalFormat;
import java.util.Scanner;

public class Pizzaorder {

   static Scanner s= new Scanner(System.in);
  
//   driver method
   public static void main(String[] args) {
       // TODO Auto-generated method stub

       Pizza p=new Pizza();
      
       mainmenu(p);
      
   }
  
//   main menu
   public static void mainmenu(Pizza p) {
      
       System.out.println("Welcome to May and Adam’s Pizzeria");
      
       System.out.print("Enter your first name : ");
      
       String name = s.next();
       System.out.println();
      
       System.out.println("Pizza Size(in inches) cost");
      
       System.out.println(" 10 $10.99 ");
       System.out.println(" 12 $12.99 ");
       System.out.println(" 14 $14.99 ");
       System.out.println(" 16 $16.99 ");
      
       System.out.println();
      
       System.out.println("What size pizza would you like?");
       System.out.print("10, 12, 14, or 16 (enter the number only) : ");
      
       int size=s.nextInt();
      
       switch(size) {
      
       case 10:
           double price=10.99;
           p.crust(price);
           return;
          
       case 12:
           price=12.99;
           p.crust(price);
           return;
          
       case 14:
           price=14.99;
           p.crust(price);
           return;
          
       case 16:
           price=16.99;
           p.crust(price);
           return;
          
           default:
               System.out.println("Invalid choice");
               mainmenu(p);
          
       }
      
      
      
   }

  
}

//pizza class
class Pizza{
  
   Scanner s= new Scanner(System.in);

//   will take input of crust
   public void crust(double price) {
      
       System.out.println();
       System.out.println("What type of crust do you want?");
      
       System.out.print("(H)Hand-tossed, (T) Thin-crust, or (D) Deep-dish (enter H, T, or D) : ");
      
       char crust=s.next().charAt(0);
      
//       using switch condition statement
       switch(crust) {
      
       case 'H' :
           topping_print(price,crust);
           break;
          
       case 'T' :
           topping_print(price,crust);
           break;
          
       case 'D' :
           topping_print(price,crust);
           break;
          
           default:
               System.out.println("Invalid choice");
               crust(price);
              
          
       }
      
      
      
   }
  
//   method for take input of topping nad print order
   public void topping_print(double price,char crust) {
      
       double tempp=price;
      
       System.out.println();
       System.out.println("All pizzas come with cheese.");
      
       System.out.println("Additional toppings are $1.25 each, choose from:\r\n" +
               "Pepperoni, Sausage, Onion, Mushroom");
      
       System.out.print("Do you want Pepperoni? (Y/N) : ");
       char Pepperoni =s.next().charAt(0);
      
       if(Pepperoni=='y' || Pepperoni=='Y') {
           price+=1.25;
          
       }
      
       while(Pepperoni!='y' || Pepperoni!='Y' || Pepperoni!='n' || Pepperoni!='N') {
      
      
       if(Pepperoni=='y' || Pepperoni=='Y') {
           price+=1.25;
           break;
       }
       else if(Pepperoni=='n' || Pepperoni=='N') {
           break;
       }
       else {
           System.out.println("Invalid Choice");
           System.out.print("Do you want Pepperoni? (Y/N) : ");
           Pepperoni =s.next().charAt(0);
       }
       }
      
       System.out.print("Do you want Sausage? (Y/N) : ");
       char Sausage=s.next().charAt(0);
      
       if(Sausage=='y' || Sausage=='Y') {
           price+=1.25;
          
       }
      
       while(Sausage!='y' || Sausage!='Y' || Sausage!='n' || Sausage!='N') {
      
      
       if(Sausage=='y' || Sausage=='Y') {
           price+=1.25;
           break;
       }
       else if(Sausage=='n' || Sausage=='N') {
           break;
       }
       else {
           System.out.println("Invalid Choice");
           System.out.print("Do you want Sausage? (Y/N) : ");
           Sausage =s.next().charAt(0);
       }
       }
      
       System.out.print("Do you want Onion? (Y/N) : ");
       char Onion=s.next().charAt(0);
      
       if(Onion=='y' || Onion=='Y') {
           price+=1.25;
          
       }
      
       while(Onion!='y' || Onion!='Y' || Onion!='n' || Onion!='N') {
      
      
       if(Onion=='y' || Onion=='Y') {
           price+=1.25;
           break;
       }
       else if(Onion=='n' || Onion=='N') {
           break;
       }
       else {
           System.out.println("Invalid Choice");
           System.out.print("Do you want Onion? (Y/N) : ");
           Onion =s.next().charAt(0);
       }
       }
      
      
       System.out.print("Do you want Mushroom? (Y/N) : ");
       char Mushroom=s.next().charAt(0);
      
       if(Mushroom=='y' || Mushroom=='Y') {
           price+=1.25;
          
       }
      
       while(Mushroom!='y' || Mushroom!='Y' || Mushroom!='n' || Mushroom!='N') {
      
      
       if(Mushroom=='y' || Mushroom=='Y') {
           price+=1.25;
           break;
       }
       else if(Mushroom=='n' || Mushroom=='N') {
           break;
       }
       else {
           System.out.println("Invalid Choice");
           System.out.print("Do you want Mushroom? (Y/N) : ");
           Mushroom =s.next().charAt(0);
       }
       }
      
      
//       print the order
      
       System.out.println();
      
       System.out.println("Your order is as follows : ");
      
       int size = 0;
       String type = null;
       String topping="Cheese, ";
       double tax=1.23;
      
       if(tempp==10.99)
           size=10;
      
       else if(tempp==12.99)
       size=12;
      
       else if(tempp==14.99)
           size=14;
      
       else if(tempp==16.99)
           size=16;
      
      
       if(crust=='H')
           type="Hand-tossed";
      
       else if(crust=='T')
           type="Thin-crust";
      
       else if(crust=='D')
           type="Deep-dish";
      
      
       if(Pepperoni=='Y' || Pepperoni=='y') {
           topping+="Pepperoni, ";
       }
      
       if(Sausage=='Y' || Sausage=='y') {
           topping+="Sausage, ";
       }
      
       if(Onion=='Y' || Onion=='y') {
           topping+="Onion, ";
       }
      
       if(Mushroom=='Y' || Mushroom=='y') {
           topping+="Mushroom, ";
       }
      
      
//       for upto 2 decimal format
       DecimalFormat df2 = new DecimalFormat("#.##");
      
       System.out.println(size+"-inch Pizza");
       System.out.println(type+" crust");
       System.out.println(topping);
       System.out.println("The cost of your order is : $"+df2.format(price));
       System.out.println("The tax is $"+ tax);
       System.out.println("The total Due is : $"+df2.format((price+tax)));
       System.out.println("Your order will be ready for pickup in 30 minutes.");
      
      
   }
  
  
}

SAMPLE OUTPUT:

1:

2.

If you have any doubt regarding this question please ask me in comments

// THANK YOU:-)