Admins-MacBook-Pro:JavaVirtualMachines admin$ pwd
/Library/Java/JavaVirtualMachines
Admins-MacBook-Pro:JavaVirtualMachines admin$ ls
jdk-10.0.2.jdk      jdk1.8.0_191.jdk

Admins-MacBook-Pro:JavaVirtualMachines admin$ java --version
java 10.0.2 2018-07-17
Java(TM) SE Runtime Environment 18.3 (build 10.0.2+13)
Java HotSpot(TM) 64-Bit Server VM 18.3 (build 10.0.2+13, mixed mode)

Admins-MacBook-Pro:~ admin$ /usr/libexec/java_home -V
Matching Java Virtual Machines (2):
    10.0.2, x86_64: "Java SE 10.0.2"    /Library/Java/JavaVirtualMachines/jdk-10.0.2.jdk/Contents/Home
    1.8.0_191, x86_64:  "Java SE 8" /Library/Java/JavaVirtualMachines/jdk1.8.0_191.jdk/Contents/Home

Admins-MacBook-Pro:~ admin$ cat .bash_profile
export JAVA_HOME=$(/usr/libexec/java_home)