Here is a curated list of books, courses, and tools that I personally recommend for learning Java and software development.
Disclosure: This page contains affiliate links. If you purchase through them, I may earn a commission at no extra cost to you.
📚 Books
- Effective Java (3rd Edition)
By Joshua Bloch Must Read
The definitive guide to best practices in Java. A must-have for every serious Java developer.
View on Amazon - Clean Code
By Robert C. Martin
A handbook of agile software craftsmanship. Learn how to write code that is easy to understand and maintain.
View on Amazon
🎓 Courses
🛠 Tools
- Free Online QR Code Generator
100% private, client-side QR Code maker. Create permanent, unexpiring QR codes for text, URLs, Wi-Fi, UPI payments, and emails.
View Tool - Interactive FIRE Calculator
Plan your Financial Independence, Retire Early milestone with Trinity Study safe withdrawal rates, inflation models, and live portfolio projections.
View Tool - Indian Stock Brokerage & STT Calculator
Real-time calculation of STT, GST, SEBI turnover fees, stamp duty, breakeven points, and net P&L comparing Finvasia Shoonya, Zerodha, and Groww.
View Tool - Online RegEx Tester & Java Pattern Generator
Live regular expression evaluator with capture group debugging, enterprise presets, and automated Java 21+ Pattern snippet escaping.
View Tool - Interactive Cron Expression Generator
Visual cron generator supporting Spring Boot 6-field and standard Unix crontab formats with plain-English translations and execution schedule simulator.
View Tool - JSON to Java Record & Lombok Converter
Transform JSON payloads into modern Java 17+ Records or Lombok DTOs with Jackson @JsonProperty mappings and automated type inference.
View Tool - Online JSON Formatter & Beautifier
Format, beautify, minify, and validate JSON payloads with 2-space, 4-space, or tab indentation and instant syntax error pinpointing.
View Tool - Online URL Encoder & Decoder
RFC 3986 URI component encoding, decoding, URL structure breakdown, and automated query parameter key-value analyzer.
View Tool - Interactive TFSA Calculator
Calculate your cumulative Canadian Tax-Free Savings Account contribution room from 2009 to 2026 based on your eligibility year.
View Tool