복습 - HashMap 연산

import java.util.LinkedHashMap;
import java.util.HashMap;
import java.util.Map;
import java.util.stream.Collectors;
import java.util.Scanner;
import com.google.gson.Gson;
import com.google.gson.reflect.TypeToken;
import java.lang.reflect.Type;

public class Main {
    public static HashMap<String, Object> processHashMap(HashMap<String, Double> products) {
        // 여기에 코드를 작성하세요
    }

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

        // JSON 문자열을 HashMap으로 변환합니다
        Type mapType = new TypeToken<HashMap<String, Double>>(){}.getType();
        HashMap<String, Double> products = new Gson().fromJson(productsString, mapType);

        HashMap<String, Object> result = processHashMap(products);

        // 일관된 출력을 위해 Filtered 맵을 정렬합니다
        Map<String, Double> filteredMap = (Map<String, Double>) result.get("Filtered");
        if (filteredMap != null && !filteredMap.isEmpty()) {
            Map<String, Double> sortedFiltered = filteredMap.entrySet().stream()
                .sorted(Map.Entry.comparingByKey())
                .collect(Collectors.toMap(
                    Map.Entry::getKey,
                    Map.Entry::getValue,
                    (a, b) -> b,
                    LinkedHashMap::new
                ));
            result.put("Filtered", sortedFiltered);
        }
        
        System.out.println(result);
    }
}