programming

30 Jul 2025

DZone Java Zone

Immutable Objects Using Record in Java

It is often useful to have objects that, once created, don't change their content. To see a complete description on how to build such class, you can read my previous article "Immutable Objects in Java".

Let's imagine we want to build a PersonClass with two fields: firstName and lastName. To create immutable instances, this class must:

30 Jul 2025 8:00pm GMT

25 Jul 2025

DZone Java Zone

Smart-Doc: Generating gRPC API Documentation in Java Projects

Foreword

In modern Java microservices, gRPC simplifies inter-service communication with its efficient binary protocol and multi-language support. However, maintaining gRPC API documentation can be challenging as projects grow. Among various AI tools, smart-doc stands out as the optimal solution for generating gRPC API documentation in Java projects.

Advantages of Smart-Doc in Java Projects

1. Fast Speed

Smart-doc is designed to quickly scan code and generate documentation without additional runtime dependencies. It directly extracts .proto files, compiles them into Java code using protoc, and then generates documentation by parsing the Java code and comments. This process is much faster than AI tools.

25 Jul 2025 1:00pm GMT

23 Jul 2025

DZone Java Zone

Undocumented Java 16 Feature: The End-of-File Comment

While working on some code where I wanted to obscure parts of it using Unicode escapes instead of the actual source, I accidentally stumbled upon an undocumented feature that's been around since Java 16: what I call the end-of-file comment.

In Java, we typically have three types of comments:

23 Jul 2025 6:00pm GMT