The JDK switcher I made in an hour due to sdkman unavailability in pure Windows.
- Create a folder with named "sdk" and create "sdks" folder in the folder.
- Append paths of both folder to %PATH% (system)
- Download main.py and sdk.bat and put them in the "sdk" folder.
- Open main.py and change the "SDK_HOME" variable to the path of the "sdks" folder.