Java

Java loyihalarini boshqarish uchun Maven vositasi qanday asosiy funksiyani ta'minlaydi?

Junior — Middle

IT One

Kubernetes/OpenShift'da Pod, Deployment va Deployment Config nima? Farqi nima?

Senior

IT One

Bu kod nə göstərəcək? public class StreamApi { @Data @AllArgsConstructor public static class Client { private String name; private String city; } public static Map<String, Long> countBy(Stream<Client> clients, Function<Client, String> clientParameterGetter) { return clients.collect(Collectors.groupingBy(clientParameterGetter, TreeMap::new, Collectors.counting())); } public static void main(String[] args) { List<Client> clients = List.of( new Client("Иванов", "Москва"), new Client("Михайлов", "Санкт-Петербург"), new Client("Сергеев", "Санкт-Петербург"), new Client("Иванов", null), new Client("Сергеев", null) ); long count = clients.stream() .peek(client -> { if (client.getCity() == null) { client.setCity("Москва"); } }) .count(); Predicate<Client> clientPredicate = client -> client.getCity() != null; Stream<Client> validClients = clients.stream().filter(clientPredicate); System.out.println(count); System.out.println(countBy(validClients, Client::getName)); System.out.println(countBy(validClients, Client::getCity)); } }

Senior

IT One

Elementlarni saqlash uchun bog'langan ro'yxatdan foydalanishning afzalliklari va kamchiliklari qanday?

Junior — Middle

IT One

Spring Boot @ComponentScan bo'lmasa, komponentlarni qayerda qidiradi?

Senior

IT One

JDBCda SQL so'rovlarini bajarish uchun oddiy Statement va tayyorlangan PreparedStatement foydalanish o'rtasidagi farq nima?

Junior — Middle

IT OneFirecodeR-Style Softlab

Nima uchun ketma-ket iteratsiya qilishda ArrayList LinkedListdan tezroq ishlaydi?

Junior — Middle

IT One

Java'da WeakHashMap sinfining qanday ishlashini va oddiy HashMapdan qanday farq qilishini tushuntirib bera olasizmi?

Junior — Middle

IT One

Dastur bajarilishi davomida odatda qaysi ma'lumotlar va o'zgaruvchilar stekda joylashadi?

Junior — Middle

IT One

Agar biz POST niyatida ishlatsak, lekin HTTP (HTTPS emas) bo'lsa nima bo'ladi?

Senior

IT One

Konteynerda bean o'chirilganda ma'lum bir harakatlarni qanday sozlash mumkin?

Junior — Middle

IT One

HashMap ma'lumotlar tuzilmasi qanday amalga oshirilgan va u elementlarga tez kirishni qanday ta'minlaydi?

Junior — Middle

StrokiСБЕРRed Collar+6

Sonlar ketma-ketligida birinchi noyob elementni qanday aniqlash mumkin?

Junior — Middle

IT One

Dasturlash tizimlaridagi bog'liqliklar kontekstida o'tkazuvchan bog'liqlik tushunchasini tushuntiring.

Junior — Middle

IT One

Stream'da pipeline usulining ishlash prinsipi va uning xususiyatlarini tushuntiring.

Junior — Middle

IT One

Qo'lda kod yordamida Singletonni amalga oshirishning kamchiligi nima va nima uchun bu yomon amaliyot hisoblanadi?

Junior — Middle

IT One

Dasturlash tilida istisno tekshiriladigan yoki tekshirilmaydiganligini qanday aniqlash mumkin?

Junior — Middle

IT OneСБЕР

Reaktiv kodda istisnolarni qanday boshqarish mumkin?

Senior

IT One

Java'da resurslarni avtomatik boshqarish uchun try-with-resources qurilmasidan foydalanish tajribangiz bormi?

Junior — Middle

IT One

Java'da xotira ichki tuzilishi va axirgi tozalashchilar qanday ishlashini aytib bering.

Senior

IT One