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.

Download the tar file.

Extract the tar file to the /opt folder.

Configuring Java Environment Variable

Note the extracted Java path, that is, ./opt/jdk 1.8.0_121.
Modify the /etc/environment file to set Java variables. For example,
```
vi /etc/environment
```

Type the below lines:

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

Save the file and restart your computer.

Verifying Java Environment Variable

Open the Terminal with root user.
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