What are the minecraft java libraries?

ca
1

I saw a youtube viedeo that initialized garkolym net.minecraft.init.blocks what is it? And what does it do?

Di

It is probably jd-gui or a similar decompiler. This "converts" the Java bytecode back into readable Java code, if possible, so that it can be better understood as a human being.

Simply put, it can, for example, read the Minecraft code and analyze how Minecraft solves certain problems and how things are done in detail.