i need some help .I have a project, but there is one thing I do not know how to do, which is, how do I allow the program to print all the requests received and count them together on the bill. this is the code.



package proj3;


import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.util.Random ;
import java.io.IOException;
import java.util.Scanner;


public class Proj3 {


    public static void main(String[] args) throws FileNotFoundException {

 //==============================file have the meun====================================

     File file = new File("\\Users\\moo-m\\Documents\\NetBeansProjects\\file\\menu1.txt");
     Scanner scan = new Scanner(file);
     while (scan.hasNextLine()){
     System.out.println(scan.nextLine());
     }

 //===================coustmer information====================
     PizzaOrder p1 = new PizzaOrder();
        Scanner scanner = new Scanner(System.in);
           try{
                System.out.print("Name: ");
                p1.setName(scanner.nextLine());
                System.out.print("Phone: ");
                p1.setPhoneNumber(scanner.nextInt());
           }catch(Exception m){
           System.out.println("sorry, you writ something wrong");
           }

 //===================================loop for how many time the coustmer want to order=======================================
            int pizzanumber ;
            int countPizza  = 1;
            //Declare input Scanners
            Scanner numpizza = new Scanner(System.in);

            //Adding a new Order
            System.out.println("==============================");
            System.out.println("Enter number of Pizza Orders: ");
            pizzanumber = numpizza.nextInt();

            //declaring a counter
            int i = 1;
            //creating a loop to display entry details for pizzas
            while (i<=pizzanumber){
                System.out.println("Enter Details of Pizza Order " + countPizza  + ":");
                System.out.println("=================================================");
                countPizza += + 1;

                i++;

//==================================take the order from coustmer===========================================
         Scanner scann = new Scanner(System.in);
         try{
         System.out.println("Enter your favorit pizza: ");
         p1.setOrder(scann.nextLine());
         System.out.println("What would you like the size will be? ");
         p1.setsize(scann.nextLine());
         System.out.println("Do you want to add something (yes - no): ");
         p1.setadd(scann.nextLine());

         //*****************
         String s1= "cheese";
         String s2= "chickens";    // addtion add
         String s3= "Bell pepper";
         //***********************

         if (p1.getadd().equals("yes")){

          Scanner p3 = new Scanner (System.in);
          System.out.println("the addtion that we have are:"+"\n"+" 1)cheese "+"\n"+"2)chickens"+"\n"+"3)Bell pepper");
           p3.nextLine();
           if(p3.equals(s1)){
             System.out.println("the addtion will cast you 5($) ");
            }
            if(p3.equals(s2)){
             System.out.println("the addtion will cast you 5($) ");
            }
            if(p3.equals(s3)){
             System.out.println("the addtion will cast you 5($) ");
           }

         }

        }
       catch(Exception m){
           System.out.println("An error occurred.");
       }
            }

 //===============================file for what tha input will save==========================
                try {
                    FileWriter myWriter = new FileWriter("filename.txt");
                    myWriter.write(p1.getName());
                    myWriter.write(p1.getPhoneNumber());
                    myWriter.write(p1.getOrder()+ p1.getsize());
                    myWriter.close();
                    System.out.println("");
                } catch (IOException e) {
                    System.out.println("An error occurred.");

                }

//=====================printing the bill ==========================
System.out.println(p1.printbill());
}}
 class PizzaOrder {
  public String printbill(){
 //order number
Random ran = new Random();
int n = ran.nextInt(100);


System.out.println("*******************************************************");
System.out.println("                       your bill                       ");
System.out.println("*******************************************************");
System.out.println("  |    your order number is :"+ n+                   "|");
System.out.println("  |    Name:"+getName()+                             "|");
System.out.println("  |    Phone:"+getPhoneNumber()+                     "|");
System.out.println("  |    Order: "+ getOrder()+"("+getsize()+")"+       "|");
System.out.println("  |    Pizza Cost ($): "+ determinePizzaPrice()+     "|");
System.out.println("  |    the addition order will cost you  + 5($)       |");
System.out.println("*******************************************************");
System.out.println("  |     total to pay ($): " +totalCost()+            "|");
System.out.println("*******************************************************");
return                       "thank you for visiting our restaurant";
}


 //declaring variables

  private String name;
  private  int phoneNumber;
  private String order;
  private String type;
  private String size;
  private String add;

//=================================================================
  public void setName(String name) {
    this.name = name;
  }

  public void setPhoneNumber(int phoneNumber) {
    this.phoneNumber = phoneNumber;
  }

  public void setOrder(String order) {
    this.order = order;
  }

  public void setsize(String size) {
    this.size = size;
  }
  public void setadd(String add) {
    this.add = add;
  }

  ///=======================================================
  public String getName() {
    return name;
  }

  public int getPhoneNumber() {
    return phoneNumber;
  }

  public String getOrder() {
    return order;
  }
  public String getsize() {
    return size;
  }
 public String getadd() {
    return add;
  }

//==============================================================
  double totalCost; //c is the total cost (in dollars)
  double price; //p is the cost of the pizza
  double price1 ;

//===================================================
//method for determining pizza price

  public double determinePizzaPrice(){
      switch (getOrder()) {

      //end if for order Pepperoni Pizza
          case "Pepperoni Pizza":
      switch (getsize()) {
          case "small":
              price =10;
              break;
          case "medium":
              price =20;
              break;
          case "large":
              price =30;
              break;
          default:
              break;
      }
break;

      //end else-if for order Cheese pizza
          case "Cheese pizza":
      switch (getsize()) {
          case "small":
              price =10;
              break;
          case "medium":
              price =20;
              break;
          case "large":
              price =30;
              break;
          default:
              break;
      }
break;
      //end else-if for order vegetable pizza

          case "vegetable Pizza":
      switch (getsize()) {
          case "small":
              price =10;
              break;
          case "medium":
              price =20;
              break;
          case "large":
              price =30;
              break;
          default:
              break;
      }
break;
      //end else-if for order BBQ Pizza
          case "BBQ Pizza":
      switch (getsize()) {
          case "small":
              price =10;
              break;
          case "medium":
              price =20;
              break;
          case "large":
              price =30;
              break;
          default:
              break;
      }
break;
          default:
              System.out.println("Error: Incorrect Order name has been entered.");
              break; //end else
      }
    return price;
  }

 //====================method for total cost for addtion================================
  public double totalCost(){
   if (getadd().equals("yes")){

       price1= 5;
   }
   else {
   price1= 0;
   }
    return totalCost = price + price1 ;
  }



 }