How to Install Oracle JDK 8 on Linux Mint 17.2 Rafaela LTS Easy Guide

October 6, 2015 | By the+gnu+linux+evangelist.

Oracle JDK 8 Quick Start on Linux Mint 17.2 Rafaela

The Guide shows you in Easy-Steps How to Install Oracle-Sun Java SE JDK 8 i586/x8664 for Linux Mint 17.2 Rafaela LTS desktop.

To SetUp Oracle JDK in you may need to make use of the update-alternatives Tool to Update your System Java.

Some Java 8 Features:

LAMBDA Expressions Programming
The Stream API
The Nashorn Javascript Engine

To the How to Download and Install Oracle JDK 8 on Linux Mint 17.2 Rafaela Bottom there is a Link for Quick Start with Java JDK 8 Development on Eclipse and IntelliJ IDEA on Mint Linux.

Moreover, to Make the Process Easier to Visualize the Post Includes the Basic Screenshots of the Steps Involved.

The Contents and Details of How to Download and Install Oracle JDK 8 on Linux Mint 17.2 Rafaela are expressly minimal to focus only on the essential instructions and commands and make the tut easier to understand ;)

Install Oracle JDK 8 on Linux Mint 17.2 Rafaela - Featured

Download Oracle Java SE JDK8 for Linux.

Oracle JDK8 i586/x8664 tar.gz

Oracle Jdk8
Double-Click on the JDK8 tar.gz Archive and Extract into /tmp.

Or from Shell:
```
tar xvfz jdk1.8*.tar.gz -C /tmp/
```
Open a Shell Terminal emulator window
(Press “Enter” to Execute Commands)

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/

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

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
```
Test New Java JDK 8 Installation.
```
java -version
```
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