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Core Java

The Hidden Cost of Records: When Java’s Immutable Data Classes Quietly Hurt Your GC
Records are clean, expressive, and widely adopted ā but in tight, allocation-heavy loops, they can pile invisible pressure on the…
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Core Java

Querying Records Between Two Dates Using Hibernate
Querying records between two dates is a common requirement in enterprise applications. Examples include retrieving orders placed within a specific…
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Core Java

Extracting HTTP Basic Authentication from HttpServletRequest
Authentication is a fundamental aspect of securing web applications. One of the simplest and most widely used authentication mechanisms is…
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TypeScript

TypeScript’s Type System as aĀ Proof System: Type-Level Programming Beyond the Basics
Conditional types,Ā infer, template literal parsing, recursive algorithms ā and why the type checker is really a theorem prover you have…
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Core Java

How to Read aĀ 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’sĀ 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 ā and what does…
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