linux system installed jdk

Step One: Download jdk-8u211-linux-x64.tar.gz

Download URL: https: //www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

Step two: Extract

Decompression in / usr / local / java directory

mkdir -p /usr/local/java
cd /usr/local/java
tar -zxvf jdk-8u211-linux-x64.tar.gz

The third step: modify / etc / profile

vim /etc/profile

In the end of the file and add the following contents:

export JAVA_HOME=/usr/local/java/jdk1.8.0_211
export PATH=$JAVA_HOME/bin:$PATH export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar 

or:

export JAVA_HOME=/usr/local/java/jdk1.8.0_211
export JRE_HOME=${JAVA_HOME}/jre export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib export PATH=${JAVA_HOME}/bin:$PATH 

The fourth step: to validate the configuration

source /etc/profile

Step five: View java version

java -version