jenv 
https://github.com/jenv/jenv
https://www.youtube.com/watch?v=9FVZyeFDXo0

its a java version manager like nvm which alters the environment path

- Installation
  ```bash
	git clone https://github.com/jenv/jenv.git ~/.jenv
	# Shell: bash
	echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.bash_profile
	echo 'eval "$(jenv init -)"' >> ~/.bash_profile
	# Shell: zsh
	echo 'export PATH="$HOME/.jenv/bin:$PATH"' >> ~/.zshrc
	echo 'eval "$(jenv init -)"' >> ~/.zshrc
  ```
  Here instead of `~/.bash_profile` it can be `~/.bashrc` too
  
 - Configurations
   Check installed versons using `jenv versions` .
   To add java to jenv use
   `jenv add /usr/lib/jvm/java-11-openjdk`
   
  - Using
    To set version locally for current directory
	`jenv local 11.0.2`
	For globally
	`jenv global 11.0.2`