sdkman to fzf quick and dirty selection of installed JDKS with fzf in zsh (should work also in bash, i guess)

use-jdk.zsh

# assuming sdkman is installed in default location: $HOME/.sdkman
# grep selects only from INSTALLED candidates
# 
# add to your .zshrc or .zshrc.local or save it as use-jdk.zsh and 
# load it on init with 'source ~/PATH/TO/SCRIPT/use-jdk.zsh'

function use-jdk() {
  FUNCS=$(functions sdk);
  sdk ls java | grep installed | grep -Po "\|\s\d+.*|" | gawk '{ print $8 }' | fzf -e | xargs -I{} zsh -c "eval $FUNCS; . ~/.sdkman/bin/sdkman-init.sh; sdk default java {}"
}