Java 8 - Linux

This section helps you to install Java 8 on your computer. Before start installing, ensure that you have downloaded the installer. Click here to download Java 8 installer.

Extract the tar file to the /opt folder.

Configuring Java Environment Variable

1. Note the extracted Java path, that is, ./opt/jdk 1.8.0_121.

2. Modify the /etc/environment file to set Java variables. For example, 

   vi /etc/environment

3. Type the below lines:
   

   JAVA_HOME="/opt/jdk1.8.0_121"
   JRE_HOME="/opt/jdk1.8.0_121/jre"

4. Save the file and restart your computer.
   
   

Verifying Java Environment Variable

1. Open the Terminal with root user.
2. Execute the below commands to verify Java home and JRE home:
   

   echo $JAVA_HOME
   echo $JRE_HOME

   Command will show the installed Java version number. Check the version displayed on the Terminal with the version installed. 
   
   

Next Step

Installing Apache Tomcat 9