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Channel

Java Ready | Программирование

@java_ready

On this record: Growth · Engagement · What this channel posts · Reactions · Posts · Citations · Handles named that no longer answer · Cite this entry

8,943subscribers

+403 since we began measuring on 7 August 2026

Risers and fallers across the register · movement among entries of 3,162–10,000.

Register entry

Telegram ID-1001969855746
TypeChannel
Username@java_ready
DescriptionАвторский канал по разработке на Java. Ресурсы, гайды, задачи, шпаргалки. Информация ежедневно пополняется! Автор: @energy_c Реклама на бирже: https://telega.in/c/java_ready
CreatedBetween 1 April 2023 and 31 October 2023— estimated from Telegram’s id allocation, not measured. How this range is calculated.
First recorded7 August 2026
Last confirmed live21 August 2026
Measurements held6
Confirmed unchanged1 time, most recently 21 August 2026
On Telegramt.me/java_ready

Growth

8,5398,9438,7417 August 2026 — 8,540 subscribers7 August 2026 — 8,539 subscribers11 August 2026 — 8,682 subscribers14 August 2026 — 8,798 subscribers17 August 2026 — 8,849 subscribers21 August 2026 — 8,943 subscribers7 August 202621 August 2026
6 measurements spanning 14 days, net +403. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 8,478–9,004 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)SubscribersChange
21 Aug 2026, 02:048,943+94
17 Aug 2026, 15:488,849+51
14 Aug 2026, 17:088,798+116
11 Aug 2026, 02:318,682+143
7 Aug 2026, 19:008,539-1
7 Aug 2026, 13:468,540first reading

Engagement

28 posts held, back to 29 July 2026the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 24 pagesof Telegram’s post history, 20 posts per page.

ERR · 30 days
11.6%
avg views ÷ 8,943 subscribers
Avg views / post
1,040
28 posts measured
Reaction rate
1.24%
reactions ÷ views · ER floor
Posts in window
28
of 28 held

ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.

ER is defined industry-wide as (forwards + reactions + comments) ÷ views— note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate.

What these figures were computed from
WindowRolling 30 days · latest post in window 22 August 2026
Posts held28 (29 July 202622 August 2026)
Views total29,112
Reactions total361
Forwards / commentsnot exposed by the public surface — not measured, not estimated
Readings taken23 Aug 2026, 08:57 UTC

Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.

Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.

Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.

What this channel posts

Photos
1,370
Videos
75
Links
718

Lifetime counters from Telegram’s own channel header, read 23 August 2026 — not the date at the top of this page, which is when the subscriber count was last read. A count marked was rounded by Telegram before we ever saw it — t.me prints these counters in full below 1,000 and to three significant figures above, so ≈142,000 means somewhere between 141,500 and 142,499.

Video runtime
51s
Average length
17s

Measured directly from 3 videos with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no mark.

Reaction mix

361 reactions across 28 posts, in 5 distinct kinds. The most used accounts for 39.3% of them.

Every reaction kind recorded on the sample, most used first
ReactionCountShareShare, drawn
14239.3%
👍11331.3%
🔥9526.3%
👎71.94%
🤝41.11%

No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.

Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.

Coverage. Reactions were read on 28 of the 28 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 361reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.

Measured over the 28 most recent posts we hold, published 29 July 2026 to 22 August 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.

Recent posts

22 Aug 2026, 12:42 UTC479 views10 reactionsread 23 August 2026
Photo

Как в Java чище проверять тип через pattern matching? Раньше при проверке типа часто писали так: if (value instanceof String) { String text = (String) value; System.out.println(text.length()); } Код рабочий, но в нём есть лишнее приведение типа. Сначала Java уже проверила, что value это String, а потом мы всё равно руками делаем cast. В современном Java можно записать короче: if (value instanceof String te

🔥43👍3

22 Aug 2026, 10:42 UTC526 views6 reactionsread 23 August 2026
Video

Очнись, нас готовят к цифровому ГУЛАГу Уже в десятках регионов России отключают мобильный интернет (даже когда нет атак БПЛА), тестируют «белые списки» и замедляют Телегу. 90% людей тупо смотрят на уплывающий корабль свободного Интернета. Люди поумнее готовятся к новой реальности и читают «Пакет Безопасности». Здесь дают самые свежие связки для приватности: приложения и утилиты на случай вайтлистов, прокси, браузе

👎6

22 Aug 2026, 07:12 UTC597 views14 reactionsread 23 August 2026
Photo

Шпаргалка по устройству JVM! Например, Heap хранит объекты и делится на young/old generation, а Stack содержит фреймы вызовов, локальные переменные и работает отдельно для каждого потока. На картинке основные области памяти JVM: Heap, Stack, Metaspace, PC Register и Native Method Stack, а также краткая логика работы GC и сравнение популярных сборщиков мусора. Сохрани, чтобы не потерять! 👉 Java Ready | #ресурс

👍64🔥4

21 Aug 2026, 08:12 UTC764 views9 reactionsread 23 August 2026
Photo

Photo, posted without a caption

4👍3🔥2

20 Aug 2026, 11:12 UTC755 views16 reactionsread 23 August 2026
Photo

Почему Collections.unmodifiableList не делает настоящую копию? В Java часто нужно отдать список наружу так, чтобы вызывающий код не мог его изменить. Например, из getter-метода, DTO, настроек или внутреннего состояния сервиса. Для этого часто используют Collections.unmodifiableList. List<String> roles = new ArrayList<>(); List<String> view = Collections.unmodifiableList(roles); Через view действительно нельзя вызв

6🔥6👍4

20 Aug 2026, 07:12 UTC746 views4 reactionsread 23 August 2026
Photo

Собираем сортировку задач по зависимостям! Нужно получить порядок выполнения задач, где одна задача может зависеть от другой. Например, сначала build, потом test, а deploy только после test. В этой задаче: • описываем граф зависимостей • считаем входящие связи • кладём свободные задачи в очередь Такой подход полезен для пайплайнов, сборки модулей, миграций, очередей обработки и любых сценариев, где порядок нельзя

2👍1🔥1

19 Aug 2026, 14:12 UTC816 views14 reactionsread 23 August 2026
Photo

Почему ThreadLocal нужно чистить после использования? ThreadLocal удобен, когда значение должно быть привязано к конкретному потоку: private static final ThreadLocal<String> USER_ID = new ThreadLocal<>(); Например, в начале обработки запроса можно сохранить id пользователя: USER_ID.set("user-42"); А ниже по коду достать его без передачи через каждый метод: String userId = USER_ID.get(); Но в серверных при

8👍2🔥2🤝2

18 Aug 2026, 14:12 UTC951 views19 reactionsread 23 August 2026

Делаем простой HTTP-запрос через HttpClient! Иногда нужно без сторонних библиотек сходить в API, получить JSON или проверить доступность. Начиная с Java 11 для этого есть встроенный HttpClient. Сначала создадим клиент: HttpClient client = HttpClient.newHttpClient(); Теперь соберём request: HttpRequest request = HttpRequest.newBuilder() Укажем адрес: .uri(URI.create("https://api.github.com")) Выберем GET-запрос:

👍114🔥4

18 Aug 2026, 07:12 UTC≈1,040 views15 reactionsread 23 August 2026
Photo

Статья про E2EE-мессенджер на Spring Boot и WebCrypto! Автор показывает, как устроить сквозное шифрование так, чтобы сервер передавал сообщения, но не видел их содержимое. В статье автор показывает: • как устроена сессия и обмен ключами • зачем нужен ratchet-подход для сообщений • какие архитектурные ошибки легко допустить при E2EE Продолжай читать на Habr! 👉 Java Ready | #статья

7🔥4👍2🤝2

17 Aug 2026, 07:12 UTC≈1,270 views20 reactionsread 23 August 2026
Photo

Разбираем Sequenced Collections! В Java 21 появился общий API для коллекций, у которых есть понятный порядок элементов: первый, последний и обратный обход. Раньше для этого приходилось помнить разные методы у List, Deque, LinkedHashMap и других структур. 👉 Java Ready | #шпора

🔥9👍65

14 Aug 2026, 08:12 UTC≈1,450 views25 reactionsread 23 August 2026
Photo

Шпаргалка по Maven! Например, mvn test запускает тесты, mvn package собирает артефакт, а mvn dependency:tree показывает дерево зависимостей проекта. На картинке основные Maven-команды, фазы lifecycle, полезные параметры командной строки, локальный репозиторий, Maven Central и популярные плагины: help, dependency, compiler, version, wrapper, Spring Boot и exec. Сохрани, чтобы не потерять! 👉 Java Ready | #ресурс

12👍7🔥6

13 Aug 2026, 08:12 UTC≈1,430 views12 reactionsread 23 August 2026
Photo

Photo, posted without a caption

👍64🔥2

Showing the 12 most recent of 28 posts we hold for @java_ready. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.

Mentions

Names

Channels on the register whose handles appear in this channel's posts.

A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.

Cite this entry

A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 21 August 2026 — this entry's latest reading, not the date you are reading this.

“Java Ready | Программирование” (@java_ready), 8,943 subscribers as measured 21 August 2026. Telegram Register, tgregister.com/channel/java_ready.

Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.