Hey guys! So I created a github that'll included needed files and links for installation processes for a few IDE's that y'all could be using. Of course if you wish for me to add another one, then I will do so.
*NOTE: I am not 100% sure of either the IntelliJ or VsCode's installation processes, however I hope these given links will help guide you.
https://wiki.cs.jmu.edu/student/eclipse/checkstyle (guide for installation)
https://www.jetbrains.com/help/idea/managing-plugins.html (guide for installation of plugins)
https://plugins.jetbrains.com/plugin/1065-checkstyle-idea (plugin itself found here)
https://code.visualstudio.com/learn/get-started/extensions (guide for installation of extension)
https://marketplace.visualstudio.com/items?itemName=shengchen.vscode-checkstyle (the extension itself)