Channels
Top 100TrendingNew
Categories
CryptoGamingNewsEntertainmentMusicSportsTechGamblingBots and mini appsFinanceBusinessEducationLifestyleHealthTravelAutoFashionJobsDatingDeals and shopping
Stickers
StickersEmojiThemesWallpapers
BotsGiftsTools
Theme
CurrencyUSD
$US DollarUSD₽Russian RubleRUB€EuroEUR₴Ukrainian HryvniaUAH₸Kazakhstani TengeKZT₺Turkish LiraTRYzłPolish ZlotyPLN₪Israeli New ShekelILSAEDUnited Arab Emirates DirhamAEDR$Brazilian RealBRLRpIndonesian RupiahIDRRMMalaysian RinggitMYR¥Japanese YenJPY₩South Korean WonKRWCN¥Chinese YuanCNY
EnglishРусскийEspañolPortuguês (Brasil)ArabicPersianBahasa IndonesiaFrançaisDeutschTürkçeBahasa MelayuItalianoNederlandsO'zbekPolskiБеларускаяУкраїнськаҚазақша한국어中文日本語CatalàSuomiHebrew
ChannelsCategoriesStickersBotsGiftsTools
PremiumWikiGlossaryLegal
NotificationsSettingsLog in

An open web layer over public Telegram — search, stats and channel reading right in your browser, no account, no install.

Not affiliated with Telegram FZ-LLC; all data comes from public sources.

Catalog

Top channelsCategoriesCountriesSearch

Content

StickersEmojiGiftsThemesWallpapers

Help

ToolsWikiGlossaryBlockchainSafetyPremiumAdvertisersAdvertising
© 2026 TG.ME · G.Media network· Updated 10/02/2026 · v0.2.0 · c3992a3
PrivacyTermsDMCA & complaintsReport a violation

☕️JAVA Language Community

@javacode · 2.7K subscribers

NewsCreated in 2015

☕️ Software, IT, Java, news 💻 IT highlights 🎯 AI update 🖥⌨️🖱

Open in Telegram

Information

Username@javacode
CreatedSeptember 27, 2015
Linkt.me/javacode
2.7K
Subscribers
8.1K
Average reach
—
Engagement (ER)
-4.1%
Growth over 17 days
Full stats →
We are not computing engagementWe take average reach from the channel's last 30 posts and subscribers as of today. Here a post has more views than the channel has subscribers at all: those views piled up over longer than the current audience has existed. Dividing one by the other is meaningless, so there is no ER and no reach verdict.
PostsMediaStatsSimilarReviews
⌘K
Newest first
Newest firstOldest first
Share channel “☕️JAVA Language Community”

The short link opens the channel straight in the Telegram app — not in a browser tab.

tg.me/go/javacode

Is this your channel? Add @tgme as admin — and see how many people click your links. Get the stats →

Channel history

Channel created September 27, 2015per Telegram

We have been tracking it since July 20, 2026

In all that time the channel has changed neither its name, nor its @username, nor its avatar.

We show only what we have seen ourselves.

PostsMediaStatsSimilarReviews

Reviews

0
Log in to leave a reviewLog in

No reviews yet

Be the first to share your experience with this account.

Write a review

Similar channels

All similar →
TETechShiksha by Badkul Technology4.8K subscribers
Open
JAJava Hyd Team742 subscribers
Open
JAJava Express Official3.5K subscribers
Open
PRProgramming905 subscribers
Open
PRProgramming Tips💻1.2K subscribers
Open
LOLobste.rs1.8K subscribers
Open
JAJAVA PROGRAMMING5K subscribers
Open
FRFree Quiz (Java,Spring *,C,React,Angular etc...)2.7K subscribers
Open
Kubernetes 1.31 "Amber" is here 🎉

The latest stable release brings 20 enhancements, including stable GA features like contextual logging for better debugging, improved Windows workload support, and simplified volume management with local ephemeral storage capacity tracking.

🔗 Check the full changelog: https://kubernetes.io/releases/

Notably, several beta features graduated to stable: structured authentication configuration, graceful node shutdown, and the beta for volume attributes classes. If you're running 1.30, you now have 18 months before those deprecated APIs are removed.

What matters most to your clusters right now?

@javaCode☕

#Kubernetes #K8s #CloudNative
835Mar 24
Quick Debugging Strategy for Architecture Issues 🔧

When facing architecture problems, start by checking dependency direction. If modules depend on lower-level details instead of abstractions, you've found your root cause. 🔗

Ask yourself: Does this module need to know HOW, or just WHAT?

Common red flags:
- Import statements crossing layer boundaries
- Database schemas leaking into business logic
- UI components importing repositories

✅ Good: Service → Interface → Repository
❌ Bad: Service → MySQLRepository (concrete)


Fix: Introduce interfaces/abstractions at each layer boundary.

What architecture anti-patterns trip you up most often?

#SoftwareArchitecture #SystemDesign #CleanCode #Debugging #Programming #Engineering

@javaCode☕
720Mar 23
# Understanding AsyncIO: A Beginner's Guide

What is AsyncIO?

AsyncIO (Asynchronous I/O) is a Python library that allows you to write concurrent code using the async/await syntax. It's designed for I/O-bound tasks like network requests, file operations, and database queries.

Why use AsyncIO?

Traditional synchronous code waits for each operation to complete before starting the next. AsyncIO lets your program handle multiple tasks simultaneously during waiting periods, dramatically improving performance for I/O-heavy applications.

The Core Concepts:

import asyncio

async def fetch_data():
print("Fetching data...")
await asyncio.sleep(2) # Simulating I/O operation
return {"data": "result"}

async def main():
# Running multiple coroutines concurrently
results = await asyncio.gather(
fetch_data(),
fetch_data(),
fetch_data()
)
print(f"Got {len(results)} results")

asyncio.run(main())


Key Differences from Threads:

- AsyncIO uses cooperative multitasking (single-threaded)
- Threads use preemptive multitasking (multi-threaded)
- AsyncIO avoids callback hell with clean, readable syntax
- No GIL limitations since it's single-threaded

When to use AsyncIO:

✅ Network requests (HTTP APIs, WebSockets)
✅ Database queries
✅ File operations
✅ Multiple I/O-bound tasks that can run concurrently

❌ CPU-bound tasks (use multiprocessing instead)

The Essential Rules:

1. Always use async def for coroutines
2. Use await to call async functions
3. Never block the event loop with sync code in async functions
4. Use asyncio.gather() or asyncio.create_task() for concurrency

🔗 Official Documentation

Ready to level up your Python skills? What async challenges are you facing in your projects?

#Python #AsyncIO #Programming

@javaCode☕
533Mar 23
# 🚀 Java Performance Mastery: 5 Critical JVM Tuning Parameters Senior Engineers Must Know

Unlock production-grade performance with these battle-tested JVM configurations that most developers overlook.

---

As a senior engineer, you've likely deployed applications that seemed fine in staging but crumbled under production load. The difference often lies in JVM tuning. Here's the hard-won knowledge that separates junior implementations from battle-ready systems.

## 🛠️ Critical JVM Parameters That Actually Matter

• -XX:+UseG1GC — The Garbage First collector has become the default in Java 11+, but many teams still default to Parallel GC. G1GC provides predictable pause times (< 200ms) and is optimized for heap sizes >= 6GB. For latency-sensitive applications, this is non-negotiable.

• -XX:MaxGCPauseMillis=100 — Setting a target pause time tells the GC to prioritize meeting your latency SLA over throughput. Pair this with G1GC's adaptive sizing to let the JVM auto-tune. Monitor with -Xlog:gc*:file=gc.log:time,uptime,level,tags for real insights.

• -XX:MetaspaceSize=256m -XX:MaxMetaspaceSize=512m — Class metadata memory leaks are insidious in long-running services. Setting explicit metaspace bounds prevents native memory exhaustion and gives you predictable OOM behavior instead of silent degradation.

• -XX:+AlwaysPreTouch — Forces the JVM to touch every page of the heap during startup. While it increases startup time by 100-300ms, it eliminates runtime memory allocation pauses (the "zero page" problem) and reveals actual memory pressure immediately.

---

## 🏗️ Memory Sizing: The Formula That Works

For production services, use this baseline:
-Xms4g -Xmx4g (keep min == max to prevent heap resizing pauses)
-XX:NewRatio=2 (2:1 old:young ratio for general workloads)
-XX:SurvivorRatio=8 (8:1 eden:survivor spaces)

For low-latency trading systems, switch to:
-Xms8g -Xmx8g -XX:NewRatio=1 -XX:SurvivorRatio=6

---

## 🧠 Pro-Tip: The Hidden Performance Killer

Most performance issues don't stem from GC—they come from String duplication. Use -XX:+UseStringDeduplication (available in G1GC since Java 8u20) to automatically deduplicate String char arrays across the heap. This can reduce heap usage by 10-30% for text-heavy applications with zero code changes.

Additionally, always run with -XX:+PrintStringTableStatistics periodically to monitor your string table bucket count. If average chain length exceeds 3, increase -XX:StringTableSize to a prime number (e.g., 600011).

---

## 🔗 [JDK 17 GC Tuning Guide] or [StackOverflow: JVM Performance Tuning]

---

@javaCode☕
#JavaPerformance #JVM #GarbageCollection #SeniorEngineer #SystemDesign #BackendDevelopment #Programming #TechTips
425Mar 22
🚀 Mastering Distributed Transaction Patterns in Microservices: SAGA vs. 2PC

When moving from monolithic to microservices architecture, handling distributed transactions becomes one of the most challenging aspects. Here's what senior engineers need to know:

---

Key Architectural Patterns:

- 🛠️ SAGA Pattern — Instead of ACID transactions across services, use a sequence of local transactions. Each service performs its operation and publishes an event; if one step fails, compensating transactions rollback previous operations. This eventual consistency model works well for long-running business processes.

- 🏗️ Two-Phase Commit (2PC) — A coordinated approach where a transaction manager orchestrates a "prepare" phase across all services before committing. While it provides strong consistency, it introduces latency and creates distributed locks—use only when absolutely necessary and understand the availability trade-offs.

- 🧠 Outbox Pattern — For scenarios requiring both a database write and message publish, write to an "outbox" table within the same transaction, then asynchronously poll and publish to your message broker. This guarantees delivery without dual-write problems.

---

🔗 Learn More: [Distributed Transactions in Microservices - Documentation]()

---

💡 Pro-Tip: Start with eventual consistency using SAGA patterns. Reserve 2PC for financial transactions where absolute consistency outweighs availability. Always implement idempotency keys at your service boundaries—retries are inevitable in distributed systems.

---

@javaCode☕

#Microservices #DistributedSystems #SystemDesign #Architecture #SoftwareEngineering #TechTips
401Mar 22
# What is the difference between JVM Heap and Stack Memory? 🧠

Understanding Memory Allocation in Java ☕

The JVM splits memory into two primary regions: Heap and Stack, each serving distinct purposes in application execution. The #Heap is a shared, runtime memory area where all objects and class instances reside. It's allocated at JVM startup and managed by the #GarbageCollector, which handles automatic deallocation of objects that are no longer referenced. The Heap is further divided into generations (Young, Old, Metaspace in modern JVMs), optimizing garbage collection performance.

The #Stack, in contrast, is thread-private and stores method frames, local variables, and primitive values. Each thread gets its own stack, and memory here follows LIFO (Last In, First Out) methodology. Stack memory is faster but limited in size, throwing #StackOverflowError when exhausted. Unlike Heap objects, stack variables cannot be shared between threads, ensuring thread safety for primitive data.

Key Differences at a Glance 🛠️

- Storage Type: #Heap stores objects and arrays; #Stack stores primitives and object references
- Lifetime: Heap objects live until GC collects them; Stack frames exist only during method execution
- Thread Safety: Heap is shared (requires synchronization); Stack is thread-private by design
- Size: Heap is large (configured via -Xmx); Stack is smaller (configured via -Xss)
- Access Speed: Stack is faster (no GC overhead); Heap is slower (managed by GC)
- Error Types: #OutOfMemoryError (Heap); #StackOverflowError (Stack)

When to Use Which? 🏗️

- Use Heap for: Shared data, large objects, database connections, caching
- Use Stack for: Method-local variables, recursion depth control, thread-safe operations

🔗 Reference: JVM Memory Management Documentation

---

📌 Follow for more Java deep dives!

@javaCode☕

#JVM #Java #MemoryManagement #Heap #Stack #GarbageCollection #Programming #SoftwareEngineering #JavaDeveloper #TechKnowledge
475Mar 22
👇Top 5 Free HTML Resume Templates in 2024 | With Source Code👇

https://copyassignment.com/top-5-free-html-resume-templates-in-2024-with-source-code

@javaCode
1.6KOct 15
https://github.com/Carlos-Guilherme/calculator-customtk

#python

@javaCode
1.7KOct 10
https://youtube.com/shorts/7ZSrolQiVc0



Some of you guys into Photography 📷
1.5K 2Oct 9
Should I consider replying to this email? 🤔
1.4KOct 7
https://youtube.com/shorts/xlDoTHV2RYw
1.4K 1Oct 7
Probably I'm gonna put some updates here!
1.2KOct 7
How do you feel about AI? Will it replace developers? Let me know... Share your thoughts 🤔💭
1.3KOct 7
#Video 🎥🖥️

#Java 8 Stream API: Grouping and Aggregating Data with Collectors

more info...

@javaCode☕️
9.2K 12Dec 19
#Book 📚📕
#Kafka Streams in Action, Second Edition.


You can download it in the comment section.
@javaCode☕️
8.7K 6Dec 19
#Book 📚📕

#Kafka Streams in Action Real-time apps and microservices with the Kafka Streaming API.



You can download it in the comment section.
@javaCode☕️
7.4K 4Dec 19
How to Convert a #Stream to List, Set, and Map in #Java? Example Tutorial

more info…




@javaCode☕️
19.2K 18May 28
Introduction to PostgreSQL LAG() function:

#PostgreSQL LAG() function provides access to a row that comes before the current row at a specified physical offset. In other words, from the current row the LAG() function can access data of the previous row, or the row before the previous row, and so on.

The LAG() function will be very useful for comparing the values of the current and the previous row.

more info…

@javaCode☕️
19.9K 13Jan 19
https://aws.amazon.com/architecture/this-is-my-architecture/



@javaCode☕️
16.7K 2Dec 17

[media, no text]

15KNov 24
Show 8 more posts