Effective Java — Practice & Code Examples

This repository contains my personal practice and code examples developed while studying the book "Effective Java" by Joshua Bloch (3rd Edition).

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💡 My Approach to Learning

• Written from scratch: None of the code in this repository is a blind copy-paste. Every pattern, rule, and concept was thoroughly analyzed and then written entirely from scratch based on my own understanding of the logic.
• Focus on deep understanding: By implementing the examples independently without looking at the book's exact source code, I focused on building muscle memory and deeply internalizing Java best practices.
• Isolated drafts: Each folder acts as an independent mini-project or draft focused on a specific Item or Chapter from the book.

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🛠 Tech Stack

• Language: Java
• IDE / Editor: Visual Studio Code

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📁 Project Structure

The project is structured into folders representing specific concepts and items from the book:

• Bounded Wildcards (PECS) — Practical application of the Producer Extends, Consumer Super principle.
• Varargs and Generics — Combining variable arguments and generics safely.
• Lazy Initialization — Different approaches to lazy initialization and thread safety.
• Exception Translation — Transforming low-level exceptions into higher-level abstractions.
• Do not Return Null — Returning empty collections or optionals instead of nulls.
• Chapter 7 — Comprehensive practice with Lambdas and Streams.
• ...and other folders covering key Java design principles and guidelines.