I am playing Minecraft java v1.0 from launcher on seed 0 lots of cactus 4 sugarcane. I am thinking hero brine is not removed from the game i am playing on singleplayer becuase there are no sever's on the version 1.0

please help Mojang the world is called demo world

 this happened in the Minecraft demo launcher I went to installation's v1.0 create world seed DEMO few day's  later  join back into the world se seed [seed 0]

it was saying not v1.0 does not exists so I put v1.17

I was playing v1.0 in demo world where I was in the ocean it said seed 0 4 sugarcane very long cactus I think hero brine is not completely removed from the game