How to Install Oracle JDK 8 on Kubuntu 15.04 Vivid 32-64bit Gnu/Linux Easy Guide

April 24, 2015 | By the+gnu+linux+evangelist.

Oracle JDK 8 Quick Start for Kubuntu 15.04 Vivid

Hi! The Tutorial shows you Step-by-Step How to Install Oracle-Sun Java SE JDK 8 i586/x8664 for Kubuntu 15.04 Vivid Vervet i386/Amd64 GNU+Linux Plasma 5 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 in Kubuntu 15.04 Vivid Bottom there is a Link for Quick Start with Java JDK 8 Development and also to Install the NetBeans Java 8 IDE.

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 Kubuntu 15.04 Vivid are Expressly Minimal to Give Focus Only to the Essentials Instructions and Commands and Make the Tut Easier to Understand ;)

getting-started with Oracle JDK 8 on Kubuntu 15.04 Vivid - Featured

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/
```
Open a Command Line Terminal Window
Alt+Space > Type “kons” > Return
(Press “Enter” to Execute Commands)

In case first see: Terminal QuickStart Guide.
Relocate Java 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. :)

How to Install Eclipse Java on Kubuntu
Install Eclipse for Java.

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
```

How to Install Netbeans 8 IDE for Java on Kubuntu:
Setup NetBeans Java for Linux.

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

Welcome to Java 8 Challenge! ;)