Writing Java code that is clear and maintainable
Establishing a professional career in software development requires more than a passing familiarity with syntax. In the Java ecosystem, where applications…
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Practical Java Development Ideas
Notes for working Java developers—when to revisit fundamentals, how to shape APIs people enjoy using, and habits that keep codebases maintainable.
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Fundamentals
Algorithms Worth Revisiting
Sorting, searching, and classic structures are not interview trivia—they are lenses for naming, splitting, and testing the code you ship every week.
Interfaces
APIs People Actually Use
Good Java APIs hide complexity without hiding surprises—naming, error models, and evolution strategy matter as much as any framework choice.
Craft
Mistakes That Scale
Null handling, exception sprawl, and mutable shared state compound quietly—catch the patterns early before they become production folklore.
Core Algorithms
How brushing up on classic algorithms changed structure, readability, and performance instincts in real Java code.
API Design
Why empathy for callers—and patience with versioning—still separates libraries teams love from ones they tolerate.
Coding Pitfalls
Frequent Java foot-guns and the habits that prevent them from spreading through a codebase.
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“Clean Java is not fewer lines—it is fewer surprises for the next developer who inherits your class.”
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Recent articles from Java Lemmings.
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How revisiting basic algorithms changed the way I write Java code
The Seniority Trap: When Frameworks Mask the FoundationsIn the fast-paced world of Java development, it is easy to fall into what I call the "Seniority…
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Java Lemmings
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Both—we mix fundamentals with API and scalability topics; start with clean-code basics or jump to API design.
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We focus on language-level craft and design choices that apply across Spring, Jakarta EE, and plain Java services.
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