Orders

package com.company;


import java.util.*;
import java.util.stream.Collectors;

public class Main {

    public static void main(String[] args) {

        Scanner scanner = new Scanner(System.in);

        LinkedHashMap<String, Double> productPrice = new LinkedHashMap<>();
        LinkedHashMap<String, Integer> productQuantity = new LinkedHashMap<>();

        String input = scanner.nextLine();
        while (!input.equals("buy")) {
            String[] tokens = input.split(" +");

            String product = tokens[0];
            double price = Double.parseDouble(tokens[1]);
            int quantity = Integer.parseInt(tokens[2]);

            if (!productQuantity.containsKey(product)) {
                productQuantity.put(product, quantity);
                productPrice.put(product, quantity * price);
            } else {
                productQuantity.put(product, productQuantity.get(product) + quantity);
                productPrice.put(product, productQuantity.get(product) * price);
            }

            input = scanner.nextLine();
        }
        for (Map.Entry<String, Double> entry : productPrice.entrySet()) {
            System.out.printf("%s -> %.2f%n", entry.getKey(), entry.getValue());
        }


    }

}