How to Install Oracle JDK 8 on Linux Mint 19.x LTS Easy Guide

Oracle JDK 8 Mint 19 - Setting Up

1. Relocate JDK 8

   sudo su

   If Got “User is Not in Sudoers file” then see: How to Enable sudo

   if [ ! -d "/usr/lib/jvm" ]; then mkdir /usr/lib/jvm; fi

   sudo chown -R root:root /tmp/jdk1.8*

   chmod -R +x /tmp/jdk1.8*/bin

   mv /tmp/jdk1.8* /usr/lib/jvm/

2. Installing Oracle Java JDK 8.

   update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.8*/bin/java 1065

   update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.8*/bin/javac 1065

   update-alternatives --install /usr/bin/jar jar /usr/lib/jvm/jdk1.8*/bin/jar 1065

   update-alternatives --install /usr/bin/javaws javaws /usr/lib/jvm/jdk1.8*/bin/javaws 1065

   Checking or Setting the System Java Version in Use with

   update-alternatives --config java

   And for the Java Compiler instead:

   sudo update-alternatives --config javac

   To Switch of Java Version Just Enter the Selection Number on First, Column. :)

   Lastly to Exit from the Super-User session:

   exit

3. Setting JAVA_HOME User Environment Variable (Optional).

   su [myUserName]

   Or simply:

   exit

   su [myUserName]

   Or simply:

   exit

   And Edit the Bash environment Configuration file

   nano $HOME/.bashrc

   Append:

   export JAVA_HOME=/usr/lib/jvm/jdk1.8[uX]

   Replace the [uX] Looking for the Installed Java 8 Version with:

   ls /usr/lib/jvm/

   Ctr+x to Save & Exit from nano Editor :)
   Load New Bash Config:

   bash

4. Test New Java JDK 8 Installation.

   java -version

5. How to Install Eclipse Java on Linux Mint

   Eclipse Java IDE Install

   Install Eclipse for Java

6. How to Install Netbeans 8 IDE for Java on Linux Mint

   Install Netbeans 8 Java for Mint

   Setup NetBeans Java for Mint

Now Thanks to Oracle-Sun Corporation you are able to Successfully Start Up with Java 8 Development.

Welcome to Java 8 Challenge! ;)