> For the complete documentation index, see [llms.txt](https://jrp.gitbook.io/notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jrp.gitbook.io/notes/java.md).

# Java

- [Installing Multiple JDK](https://jrp.gitbook.io/notes/java/installing-multiple-jdk.md): Making your linux environment ready to use multiple JDK version
- [Running Java Applications](https://jrp.gitbook.io/notes/java/running-java-applications.md): Understanding the java command will save you from some frustrating errors.