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Install Open JDK 10 on Mac

Downloading and Installing Open JDK 10 is easy, and does not need to uninstall the existing version of the JDK.
Here are the steps to install Open JDK 10

1) Download Open JDK 10 from
https://download.java.net/java/GA/jdk10/10.0.2/19aef61b38124481863b1413dce1855f/13/openjdk-10.0.2_osx-x64_bin.tar.gz

2) Go to the downloaded file's parent folder, and extract the JDK using $tar -xvf openjdk-10.0.2_osx-x64_bin.tar.gz
   
3) Copy the extracted  JDK to the Mac JDK installations folder
$sudo cp -R  ~/Downloads/jdk-10.0.2.jdk  /Library/Java/JavaVirtualMachines/

4) Update, and export JAVA_HOME, PATH in the ~/.bash_profile (or) ~/.bashrc file.
JAVA_HOME="/Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home"
PATH="$PATH:${JAVA_HOME}/bin"
export JAVA_HOME  PATH 

5) Source the bash_profile/bashrc file to detect the changes.
$ source ~/.bash_profile

6) Open a new Terminal and verify open JDK installation for javac, and java, the following outputs are expected.
$ java -version
openjdk version "10.0.2" 2018-07-17
OpenJDK Runtime Environment 18.3 (build 10.0.2+13)
OpenJDK 64-Bit Server VM 18.3 (build 10.0.2+13, mixed mode)
$ javac -version
javac 10.0.2
These outputs indicate the successful installation of Open JDK 10 on the machine.

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