[doc] Add a note about the version of checkstyle (#9785)

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Adonis Ling
2022-05-27 21:58:49 +08:00
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@ -54,6 +54,10 @@ Setting the `checkstyle.xml` file in `Tools->Checkstyle`.
Click the plus sign under Configuration File, select `Use a local Checkstyle file`, and select the `fe/check/checkstyle/checkstyle.xml` file.
**NOTE:** Make sure that the version of `Checkstyle` is 9.3 or newer (the latest version is recommended).
![](/images/idea-checkstyle-version.png)
### VS Code
If you use VS Code to develop Java code, please install `Checkstyle for Java` plugin, and config according to the [document](https://code.visualstudio.com/docs/java/java-linting) and the picture