> For the complete documentation index, see [llms.txt](https://yunzhao.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://yunzhao.gitbook.io/notes/java/class-libraries.md).

# Class Libraries

* [集合](/notes/java/class-libraries/collection.md)
* [Stream](/notes/java/class-libraries/stream.md)
* [IO](/notes/java/class-libraries/java-io.md)
* [NIO](/notes/java/class-libraries/java-nio.md)
* [RMI](/notes/java/class-libraries/rmi.md)