I wanted to ask if anyone knows how to query Java, whether the Minecraft player bought Minecraft, or used the free version.
Go to Namemc.com, enter his name, if there's a search result, he is probably bought.
If you have not bought Minecraft, you can't access many servers, eg. "GommeHD.net"
Otherwise:
https://board.nitrado.net/community-area/programmierung/hilfe/115552/abfragen-ob-spieler-besitzer-des-accounts-ist/
Normally the server does this by means of online / offline mode.
Describe the exact purpose.
But in general whether a username has bought MC should be able to be checked with the help of the Mojang API.https://wiki.vg/Mojang_API
