Maps, Lambda and Stream API - Exercise - Orders

package com.company;

import java.util.*;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

public class Main {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        Map<String, Double> productAndPrice = new LinkedHashMap<>();
        Map<String, Integer> productAndCount = new LinkedHashMap<>();


        String input = "";

        while (!"buy".equals(input = scanner.nextLine())){
            String[] data = input.split(" ");
            String product;
            Double price;
            int count;

            product = data[0];
            price = Double.parseDouble(data[1]);
            count = Integer.parseInt(data[2]);

            if (!productAndCount.containsKey(product)){
                productAndCount.put(product,count);
                productAndPrice.put(product,price);
            }else {
                productAndCount.put(product,productAndCount.get(product) + count);
                productAndPrice.put(product,price);
            }

        }

        productAndCount.entrySet().forEach(e -> {
            String product = e.getKey();
            int count =(e.getValue());
            double price = productAndPrice.get(product);
            double totalPrice = count * price;
            System.out.printf("%s -> %.2f\n",product,totalPrice);
        });


    }
}