Frozen Coder

package com.antek.memgen.gui;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class Objects {

	public static class ItemsNames {

		private Map<String, List<String>> laptops = new HashMap<>();
		private Map<String, List<String>> phones = new HashMap<>();

		public ItemsNames() {
			List<String> dell = new ArrayList<>();
			List<String> hp = new ArrayList<>();
			List<String> apple_comps = new ArrayList<>();

			List<String> nokia = new ArrayList<>();
			List<String> xiaomi = new ArrayList<>();
			List<String> apple_phones = new ArrayList<>();

			// initialize computers
			dell.add(0, "DELL Inspiron");
			dell.add(1, "DELL Latitude");
			hp.add(0, "HP Pavilion");
			hp.add(1, "HP_Omen");
			apple_comps.add(0, "McBook Air 11");
			apple_comps.add(1, "McBook Air 13");

			// initialize phones

			nokia.add(0, "Nokia 3310");
			nokia.add(0, "Nokia 5.1");
			xiaomi.add(0, "Xiaomi redmi note 3 pro");
			xiaomi.add(1, "Xiaomi Mi 9T Pro");
			apple_phones.add(0, "Iphone 8S");
			apple_phones.add(0, "Iphone 11 Pro");

			laptops.put("dell", dell);
			laptops.put("hp", hp);
			laptops.put("apple", apple_comps);

			phones.put("nokia", nokia);
			phones.put("xiaomi", xiaomi);
			phones.put("apple", apple_phones);
		}

		public List<String> laptopNames(String brand) {
			return laptops.get(brand);
		}

		public List<String> smartPhonesNames(String brand) {
			return phones.get(brand);
		}

	}

	public static void main(String[] args) {

		// Simple tests

		ItemsNames items = new ItemsNames();

		items.laptopNames("apple").forEach(System.out::println);

		items.smartPhonesNames("apple").forEach(System.out::println);

	}

}

Лично я за работу после школы, так как быстрее вольюсь в IT-сферу,