If you have more than one version installed and you want to see all of the versions available, then run the following command in the terminal window. For example, open the terminal window on your Mac and type the following command to print out the top Java version installed on your Mac /usr/libexec/java_home Starting from Mac OS 10.5 there is a very convenient command that we can use to identify the installed Java version. The new way of setting JAVA_HOME environment variable allows us to dynamically identify and use the current Java version installed on a computer as well as let us switch between Java versions if there is more than one installed. In this tutorial, I am going to share with you how to set the JAVA_HOME environment variable on a new MAC.
