Inastall java on Mac

brew update
brew tap homebrew/cask-versions
brew install java
brew install adoptopenjdk/openjdk/adoptopenjdk11

Install jenv

jEnv is a tool for managing different java’s version from command line.

brew install jenv

Then in ~/.zshrc add

export PATH="$HOME/.jenv/bin:$PATH"
if which jenv > /dev/null; then eval "$(jenv init -)"; fi

Then run source ~/.zshrc.

Now you can check available java version with

brew search jdk

And then you can install it with:

brew install adoptopenjdk14

Add it to jenv

Unfortunately you have to manually add installed java’s version to available versions in jenv. You can see them by calling

ls /Library/Java/JavaVirtualMachines/

And then add them by calling something like (you may need to change adoptopenjdk-8.jdk and openjdk-14.0.1.jdk to results of ls /Library/Java/JavaVirtualMachines/.

jenv add /Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home
jenv add /Library/Java/JavaVirtualMachines/openjdk-14.0.1.jdk/Contents/Home

Then when you call

jenv versions

you should see:

* 1.8 (set by /Users/bartekskorulski/.jenv/version)
  1.8.0.275
  14
  14.0
  14.0.2
  openjdk64-1.8.0.275
  openjdk64-14.0.2

And finally you can set your global or local (directory) version by calling

jenv global 14

or

jenv local 14

Then restart your terminal. You can double check your java version by calling

java -version

Ubuntu

sudo apt-get install software-properties-common
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

java -version
update-alternatives --config java

Updated: 2021-01-26