Ubuntu JDK environment variable configuration virtual machine VM

Unzip the JDK

In the JDK folder, open the terminal input PWD command to copy the path of the JDK.

Get root access to/etc Modify the profile text in/etc
At the end, add the following:
Export java_home=/home/runqi/jdk1.8.0_161

Export classpath=.: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar

Export path= $JAVA _home/bin: $PATH

Load the variable you just set

Terminal Input Command Source/etc/profile

Input java-version detection is configured successfully

Ubuntu JDK environment variable configuration virtual machine VM