View difference between Paste ID: hF09gMBQ and BHiCkuGW

 import com.sun.security.jgss.GSSUtil;
 
 import java.util.*;
 
 public class demo {
     public static void main(String[] args) {
         Scanner scanner = new Scanner(System.in);
         String input = scanner.nextLine();
         //продукт -> обща цена (бр * ед. цена)
         Map<String, Double> productsPrice = new LinkedHashMap<>(); //продукт -> ед. цена
         Map<String, Integer> productsQuantity = new LinkedHashMap<>(); //продукт -> брой
 
         while(!input.equals("buy")) {
             //"Beer 2.20 100" -> split(" ") -> ["Beer", "2.20", "100"]
             String product = input.split(" ")[0];
             double pricePerProduct = Double.parseDouble(input.split(" ")[1]);
             int quantity = Integer.parseInt(input.split(" ")[2]);
 
             productsPrice.put(product, pricePerProduct);
 
             if(!productsQuantity.containsKey(product)) {
                 productsQuantity.put(product, quantity);
             } else {
                 productsQuantity.put(product, productsQuantity.get(product) + quantity);
             }
 
             input = scanner.nextLine();
         }
 
         for (Map.Entry<String, Double> entry : productsPrice.entrySet()) {
             //key (име на продукта) -> value (цена)
             //цена * количеството
             String productName = entry.getKey();
             double finalSum = entry.getValue() * productsQuantity.get(productName);
             System.out.printf("%s -> %.2f%n", productName, finalSum);
         }
 
     }
 }