package com.jesusbornd.numbers;

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

public class Numbers_04_Chapter_Lv1 {

    record Item(String name, String carrier) {}

    public static void main(String[] args) {
        List<Item> items = List.of(
            new Item("법궤",          "고핫"),
            new Item("진설병 상",     "고핫"),
            new Item("등잔대",        "고핫"),
            new Item("번제단",        "고핫"),
            new Item("성막 휘장",     "게르손"),
            new Item("성막 덮개",     "게르손"),
            new Item("뜰 휘장",       "게르손"),
            new Item("성막 널판",     "므라리"),
            new Item("기둥과 받침",   "므라리")
        );

        Map<String, List<Item>> grouped = items.stream()
            .collect(Collectors.groupingBy(Item::carrier, LinkedHashMap::new, Collectors.toList()));

        grouped.forEach((carrier, cargo) -> {
            System.out.println("[" + carrier + "]");
            cargo.forEach(i -> System.out.println("  - " + i.name()));
        });
    }
}

from collections import defaultdict

items: list[tuple[str, str]] = [
    ("법궤",          "고핫"),
    ("진설병 상",     "고핫"),
    ("등잔대",        "고핫"),
    ("번제단",        "고핫"),
    ("성막 휘장",     "게르손"),
    ("성막 덮개",     "게르손"),
    ("뜰 휘장",       "게르손"),
    ("성막 널판",     "므라리"),
    ("기둥과 받침",   "므라리"),
]

grouped: dict[str, list[str]] = defaultdict(list)
for name, carrier in items:
    grouped[carrier].append(name)

for carrier, cargo in grouped.items():
    print(f"[{carrier}]")
    for item in cargo:
        print(f"  - {item}")