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Core Java

How to Read a Flame Graph: A Practical Profiling Guide for JVM Developers
Stop guessing where your Java app is spending its time. Here is everything you need to go from zero to…
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Core Java

Java Sock Merchant Problem: Solutions with Arrays and HashSets
The Sock Merchant problem is an algorithm challenge that tests our ability to work with arrays, counting, and basic data…
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Core Java

Convert ByteBuffer to Byte Array in Java
Java applications often work with binary data while performing file operations, network communication, serialization, and NIO (New I/O) programming. Two…
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Python

Python 3.13’s Free-Threaded Mode: What No-GIL Actually Means for Your Code
After nearly three decades, Python’s most notorious bottleneck is finally optional. Here is what really changes — and what does…
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Core Java

Event Sourcing Without a Framework: What You Actually Need, What You Don’t, and the Parts Nobody Warns You About
Most Java tutorials reach for Axon before explaining the moving parts underneath it. This is the framework-agnostic treatment — the…
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Software Development

Domain-Driven Design Was Written for a World Without LLMs — What Happens to the Ubiquitous Language When the Model Speaks It Better Than Your Team Does?
Eric Evans gave us the Ubiquitous Language as the hardest artifact a team can build. Large language models now absorb…
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Software Development

Technical Debt Has a Direction: Why Paying It Down in the Wrong Order Makes Things Worse
The standard advice is to “pay down technical debt.” Rarely discussed is that debt has topology — and tackling the…
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