How to Install Oracle JDK 8 on Lubuntu 18.04 Bionic Linux Easy Guide

September 22, 2018 | By the+gnu+linux+evangelist.

Oracle JDK 8 Lubuntu 18.04 Installation Guide

Hi! The Tutorial shows you Step-by-Step How to Install Oracle-Sun Java SE JDK 8 on Lubuntu 18.04 Bionic LTS GNU/Linux.

And to SetUp Oracle JDK 8 on Lubuntu 18.04 in you may need to make use of the update-alternatives Tool to Update your System Java.

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

Finally, 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 Lubuntu 18.04 Bionic Bottom there is a Link for Quick Start with Java JDK 8 Development and also to Install the NetBeans Java 8 IDE.

How to Download and Install Oracle JDK 8 in Lubuntu 18.04 Bionic Linux Easy Guide - 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 Shell Terminal emulator window
Ctrl+Alt+t on desktop
(Press “Enter” to Execute Commands).
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 Lubuntu
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 Lubuntu:
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! ;)