Question

Can you please take this code and just rewrite it so it can be easily be able to put into a complier. in java

Implementation of above program in java:

import java.util.HashMap;
import java.util.Scanner;
import java.util.Map.Entry;

public class Shopping_cart {
  
   static Scanner s= new Scanner (System.in);
  
//   declare hashmap in which key is dates as per mentioned and Values class as value which consists all the record of cases
   static HashMap<String,Item> map= new HashMap<>();

   public static void main(String[] args) {
       // TODO Auto-generated method stub
       getupdates();
   }
  
   static void getupdates() {
      
       System.out.println("Welcome to Shopping Cart. Enter:");
       System.out.println("1 : Add an Item ");
       System.out.println("2 : Add multiples Quantities of Given Item ");
       System.out.println("3 : Remove an unspecified Item ");
       System.out.println("4 : CheckOut");
       System.out.println("5 : Checkbudget");
       System.out.print("Choice: ");
       int selection= s.nextInt();
      
      
       switch(selection) {
       case 1:
          add_new_item();
          getupdates();
            
          case 2:
              Add_multiples_items();
              getupdates();
                
          case 3:
              remove_unspecified_data();
              getupdates();
                
          case 4:
                  checkout();
                  getupdates();
                 
          case 5:
                
              checkbudget();
              getupdates();
                    
          case 6:
              System.out.println("Stay Safe");
              break;
                
              default:
                  System.out.println("Invalid choice");
                   System.out.println("Please enter the valid choice");
                   getupdates();
                    
       }
   }

   public static int total_price() {
      
       int total_price=0;
       for (Entry<String, Item> entry : map.entrySet()) {
                  
                   Item it=map.get(entry.getKey());
                  
                   total_price+=it.getPrice()*it.get_quantity();
                  
               }
         
       return total_price;
      
   }
  
  
     
  
   private static void checkbudget() {
      
       System.out.print("Enter your Total Budget : ");
       int budget=s.nextInt();
      
       int totalprice=0;
  

System.out.println("Total Amount = "+total_price());

while(budget<total_price()) {
   totalprice = remove_unspecified_data();
     
     
     
   if(budget>=totalprice) {
       break;
   }
}

System.out.println();

System.out.println("Now updates cart : ");

checkout();

System.out.println();
      
   }

   private static void checkout() {
       System.out.println(" Here list of Items in Your Cart");
      
       int i=1;
       int total_price=0;
       System.out.println(" S.no Name of item Quantity price ");
       System.out.println(" ");
       for (Entry<String, Item> entry : map.entrySet()) {
          
           Item it=map.get(entry.getKey());
          
           System.out.println(" "+i+" "+entry.getKey()+" "+it.get_quantity()+" $"+it.getPrice()*it.get_quantity());
           total_price+=it.getPrice()*it.get_quantity();
           i++;
       }
      
       System.out.println();
      
       System.out.println("Total Amount = "+total_price);
      
       System.out.println();
       System.out.println();
   }

   private static int remove_unspecified_data() {
      
       System.out.print("Enter the item you want to remove from your cart : ");
       String name=s.next();
      
       Item it1=map.get(name);
      
       int quant=it1.get_quantity();
      
       if(quant>1) {
          
       quant--;
       it1.set_quantity(-1);
      
       map.put(name, it1);
       }
         
       else {
           map.remove(name, it1);
       }
      
       int total_price=total_price();
         
       total_price-=it1.getPrice();
         
       System.out.println();
       System.out.println();
      
       return total_price;
      
   }

   private static void Add_multiples_items() {
       System.out.print("Enter the item you want to add in your cart : ");
       String name=s.next();
      
System.out.println("Enter price of Item : ");
      
       int price=s.nextInt();
      
       System.out.print("Enter the quantity of that item you want to add : ");
       int quan=s.nextInt();
      
       if(map.containsKey(name)) {
           Item it1=map.get(name);
           it1.set_quantity(quan);
           map.put(name, it1);
       }
       else {
           Item it= new Item(name,price,quan);
           map.put(name, it);
       }
      
       System.out.println();
       System.out.println();
      
   }

   private static void add_new_item() {
       System.out.print("Enter the item you want to add in your cart : ");
      
       String name=s.next();
      
       System.out.println("Enter price of Item : ");
      
       int price=s.nextInt();
      
      
      
       if(map.containsKey(name)) {
           Item it1=map.get(name);
           it1.set_quantity(1);
           map.put(name, it1);
       }
       else {
           Item it= new Item(name,price,1);
           map.put(name, it);
       }
      
       System.out.println();
       System.out.println();
      
   }
  
  

}

class Item
{   
private String name;
private int price;
private int quantity; //in cents
  
//Constructor
public Item(String n, int p,int quantity)
{
name = n;
price = p;
this. quantity=quantity;
}
  
public boolean equals(Item other)
{
return this.name.equals(other.name) && this.price == other.price;
}
  
//displays name of item and price in properly formatted manner
public String toString()
{
return name + ", price: $" + price/100 + "." + price%100;
}
  
//Getter methods
public int getPrice()
{
return price;
}
  
public int get_quantity()
{
return quantity;
}
  
public void set_quantity(int qa)
{
   quantity+=qa;
}
  
public String getName()
{
return name;
}
}

Answer 1

import java.util.HashMap;
import java.util.Scanner;
import java.util.Map.Entry;

public class Shopping_cart {
  
   static Scanner s= new Scanner (System.in);
  
//   declare hashmap in which key is dates as per mentioned and Values class as value which consists all the record of cases
   static HashMap<String,Item> map= new HashMap<>();

   public static void main(String[] args) {
       // TODO Auto-generated method stub
       getupdates();
   }
  
   static void getupdates() {
      
       System.out.println("Welcome to Shopping Cart. Enter:");
       System.out.println("1 : Add an Item ");
       System.out.println("2 : Add multiples Quantities of Given Item ");
       System.out.println("3 : Remove an unspecified Item ");
       System.out.println("4 : CheckOut");
       System.out.println("5 : Checkbudget");
       System.out.print("Choice: ");
       int selection= s.nextInt();
      
      
       switch(selection) {
       case 1:
          add_new_item();
          getupdates();
            
          case 2:
              Add_multiples_items();
              getupdates();
                
          case 3:
              remove_unspecified_data();
              getupdates();
                
          case 4:
                  checkout();
                  getupdates();
                 
          case 5:
                
              checkbudget();
              getupdates();
                    
          case 6:
              System.out.println("Stay Safe");
              break;
                
              default:
                  System.out.println("Invalid choice");
                   System.out.println("Please enter the valid choice");
                   getupdates();
                    
       }
   }

   public static int total_price() {
      
       int total_price=0;
       for (Entry<String, Item> entry : map.entrySet()) {
                  
                   Item it=map.get(entry.getKey());
                  
                   total_price+=it.getPrice()*it.get_quantity();
                  
               }
         
       return total_price;
      
   }
  
  
     
  
   private static void checkbudget() {
      
       System.out.print("Enter your Total Budget : ");
       int budget=s.nextInt();
      
       int totalprice=0;
  


System.out.println("Total Amount = "+total_price());

while(budget<total_price()) {
   totalprice = remove_unspecified_data();
     
     
     
   if(budget>=totalprice) {
       break;
   }
}


System.out.println();

System.out.println("Now updates cart : ");

checkout();

System.out.println();
      
   }

   private static void checkout() {
       System.out.println(" Here list of Items in Your Cart");
      
       int i=1;
       int total_price=0;
       System.out.println(" S.no Name of item Quantity price ");
       System.out.println(" ");
       for (Entry<String, Item> entry : map.entrySet()) {
          
           Item it=map.get(entry.getKey());
          
           System.out.println(" "+i+" "+entry.getKey()+" "+it.get_quantity()+" $"+it.getPrice()*it.get_quantity());
           total_price+=it.getPrice()*it.get_quantity();
           i++;
       }
      
       System.out.println();
      
       System.out.println("Total Amount = "+total_price);
      
       System.out.println();
       System.out.println();
   }

   private static int remove_unspecified_data() {
      
       System.out.print("Enter the item you want to remove from your cart : ");
       String name=s.next();
      
       Item it1=map.get(name);
      
       int quant=it1.get_quantity();
      
       if(quant>1) {
          
       quant--;
       it1.set_quantity(-1);
      
       map.put(name, it1);
       }
         
       else {
           map.remove(name, it1);
       }
      
       int total_price=total_price();
         
       total_price-=it1.getPrice();
         
       System.out.println();
       System.out.println();
      
       return total_price;
      
   }

   private static void Add_multiples_items() {
       System.out.print("Enter the item you want to add in your cart : ");
       String name=s.next();
      
System.out.println("Enter price of Item : ");
      
       int price=s.nextInt();
      
       System.out.print("Enter the quantity of that item you want to add : ");
       int quan=s.nextInt();
      
       if(map.containsKey(name)) {
           Item it1=map.get(name);
           it1.set_quantity(quan);
           map.put(name, it1);
       }
       else {
           Item it= new Item(name,price,quan);
           map.put(name, it);
       }
      
       System.out.println();
       System.out.println();
      
   }

   private static void add_new_item() {
       System.out.print("Enter the item you want to add in your cart : ");
      
       String name=s.next();
      
       System.out.println("Enter price of Item : ");
      
       int price=s.nextInt();
      
      
      
       if(map.containsKey(name)) {
           Item it1=map.get(name);
           it1.set_quantity(1);
           map.put(name, it1);
       }
       else {
           Item it= new Item(name,price,1);
           map.put(name, it);
       }
      
       System.out.println();
       System.out.println();
      
   }
  
  

}

class Item
{   
private String name;
private int price;
private int quantity; //in cents
  
//Constructor
public Item(String n, int p,int quantity)
{
name = n;
price = p;
this. quantity=quantity;
}
  
public boolean equals(Item other)
{
return this.name.equals(other.name) && this.price == other.price;
}
  
//displays name of item and price in properly formatted manner
public String toString()
{
return name + ", price: $" + price/100 + "." + price%100;
}
  
//Getter methods
public int getPrice()
{
return price;
}
  
public int get_quantity()
{
return quantity;
}
  
public void set_quantity(int qa)
{
   quantity+=qa;
}
  
public String getName()
{
return name;
}
}