Tutorials — Learn Java, Spring Boot, Backend Engineering & AI
Deep-dive tutorials focused on real-world software engineering. Learn Java, Spring Boot, backend architecture, and LLM/AI through practical, example-driven guides written from a full-time engineer’s perspective.
Spring Boot Startup Lifecycle — From main() to a Ready Application
Spring Boot is one of the most widely used frameworks in modern Java backend systems. Most developers use it daily,...
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Spring Boot and Spring Framework Internals — Architecture, Modules, and Request Processing Explained
Spring is one of the most widely used ecosystems for building enterprise Java applications, yet many developers use Spring Boot...
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REST API Performance Optimization: Concepts, Tradeoffs, and Best Practices
REST APIs are the backbone of modern distributed systems. Whether powering mobile apps, web frontends, or microservices, their performance directly...
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Java Streams API Explained — A Complete Beginner-Friendly Guide to Stream Pipelines, Lazy Evaluation, and Functional Operations
The Streams API is one of the most powerful features introduced in Java 8. It brings functional-style data processing to...
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A Complete Beginner-Friendly Guide to Lambda Expressions, Functional Interfaces & Optional in Java 8
Java 8 Lambda Expressions introduced some of the most important improvements in modern Java—Lambda Expressions, Functional Interfaces, Streams, Method References,...
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ExecutorService & Thread Pools in Java: Concepts, Tradeoffs, and Best Practices
A comprehensive exploration of thread pools, task execution, concurrency internals, and performance engineering in the JVM. Understanding concurrency is one...
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