Java Tutorials for Backend Engineers

Exception Handling in Java: Try, Catch, and Finally

Learn how to use try, catch, and finally blocks in Java to handle exceptions, prevent crashes, and easily build stable applications.

Discover Java 21’s Virtual Threads, Structured Concurrency, and more. Simplify coding, boost performance, and enhance security.

Secure images with Java watermarking for CMS and e-commerce. Protect brand identity and deter IP theft effectively.

Learn the differences between Base64 and Hexadecimal encoding, including character sets, data size, and use cases for web.

Learn how Java synchronized methods ensure thread safety by allowing only one thread to access a method at a time—ideal for backend.

Copy Java objects without linking the original and clone changes using deep copy methods like Serialization or copy constructors.

Use custom fonts in JasperReports to support UTF-8 and match client branding in PDFs. Boost professionalism and meet requirements easily.

Generating large PDFs with JasperReports in Java and handling heap space errors for dynamic, high-memory reports.

Learn recursion in Java with this complete guide. Explore its benefits, risks, and best practices to write clean and reusable code.

Learn how to send emails in Java for reports, alerts, and client updates. A quick guide to easily integrate email into your app.