# .java File Extension

The filename ending used for a Java source file.

## What is **.java File Extension** in Java?

**.java File Extension** — The filename ending used for a Java source file.

Level: Novice · [More Java terms at this level](https://www.ask-codey.com/glossary/subjects/java/novice)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/java-file-extension