How to Install Oracle JDK 8 on Ubuntu 15.10 Wily 32-64bit Linux+GNU Easy Guide

September 30, 2015 | By the+gnu+linux+evangelist.

Oracle JDK 8 Quick Start on Ubuntu 15.10 Wily Linux

Hi! The Tutorial shows you Step-by-Step How to Install Oracle-Sun Java SE JDK 8 for Ubuntu 15.10 Wily Werewolf i386/Amd64 GNU/Linux Desktop/Server.

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 in Ubuntu 15.10 Wily Bottom there are Links for Quick Start with Java JDK 8 Development with the Best Java 8 IDEs: Eclipse, NetBeans & IntelliJ IDEA.

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 in Ubuntu 15.10 Wily are Expressly Minimal to Give Focus Only to the Essentials Instructions and Commands and Make the Tut Easier to Understand ;)

Install Oracle JDK 8 on Ubuntu 15.10 Wily - Featured

Open a Shell session
Ctrl+Alt+t on Desktop
(Press “Enter” to Execute Commands).
Download Oracle Java SE JDK8 for Linux.

Oracle JDK8 i586/x8664 tar.gz

Oracle Jdk8
Double-Click on the tar.gz Archive and Extract into
/tmp
Or from Shell:
```
tar xvzf ~/Downloads/jdk-8*.tar.gz -C /tmp/
```
Relocate JDK 8.
```
sudo su
```
If Got “User is Not in Sudoers file” then see: How to Enable sudo
Make a jvm Directory if Not already there with
```
if [ ! -d "/usr/lib/jvm" ]; then mkdir /usr/lib/jvm; fi
```
Set the root superUser as owner
```
sudo chown -R root:root /tmp/jdk1.8*
```
Reiterate the Execution Permission over the Java binaries
```
chmod -R +x /tmp/jdk1.8*/bin
```
Finally, Shift the Java contents with
```
mv /tmp/jdk1.8* /usr/lib/jvm/
```

Installing Oracle Java JDK 8
You can directly Copy & Paste the Commands into Terminal..

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

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

Setting JAVA_HOME User Environment Variable (Optional).
```
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
```

Java 8 IDEs Installation on Ubuntu

How to Install Eclipse for Java 8 Development on Ubuntu: Installing Eclipse IDE for Java 8 on Ubuntu.

How to Install Netbeans 8 IDE for Java on Ubuntu: Installing NetBeans IDE for Java Development on Ubuntu.

How to Install IntelliJ IDEA 2024 for Java Dev on Ubuntu: Installing IntelliJ IDEA for Java on Ubuntu.

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

Welcome to Java 8 Challenge! ;)