How to Install Oracle JDK 9 on Xubuntu 14.04 Trusty Easy Guide

Oracle JDK 9 Quick Start for Xubuntu 14.04 Trusty

Hello Xubuntu User! The Tutorial shows you Step-by-Step How to Install and Getting-Started with the Oracle-Sun Official Java SE JDK 9 on Xubuntu 14.04 Trusty Tahr LTS i386/Amd64 GNU/Linux Desktop.

To SetUp Oracle JDK you will need to Use the update-alternatives Tool to Update your System Java to 1.9 JDK9.

The Powerful Java 9 New Features:.

• Java REPL Shell jshell
• Full support for HTTP 2.0, new HTTP client that implement HTTP 2.0 and websockets
• Java Microbenchmarking Harness
• Java Process API Boost
• Debugging in Production

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 9 on Xubuntu 14.04 Trusty are Expressly Minimal to Give Focus Only to the Essentials Instructions and Commands and Make the Tut Easier to Understand ;)

1. Open a Terminal Shell emulator window
   Ctrl+Alt+t on desktop
   (Press “Enter” to Execute Commands)

   

   In case first see: Terminal QuickStart Guide.

2. Download Oracle Java SE JDK 9 for Linux.

   Oracle JDK 9 i586/x8664 tar.gz

   Oracle JDK 9

3. Double-Click on the tar.gz Archive and Extract into /tmp
   Or from Shell:

   tar xvzf ~/Downloads/jdk-9*.tar.gz -C /tmp/

   

4. Relocate Java JDK 9.

   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/jdk-9

   Reiterate the Execution Permission over the Java binaries:

   chmod -R +x /tmp/jdk-9/bin

   Finally, Shift the Java contents with:

   mv /tmp/jdk-9 /usr/lib/jvm/

5. Installing Oracle Java JDK 9
   You can directly Copy & Paste the Commands into Terminal..

   update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk-9/bin/java 1065

   update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk-9/bin/javac 1065

   update-alternatives --install /usr/bin/jar jar /usr/lib/jvm/jdk-9/bin/jar 1065

   update-alternatives --install /usr/bin/javaws javaws /usr/lib/jvm/jdk-9/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. :)

   

6. (Optional) Setting JAVA_HOME User Environment Variable.

   su [myUserName]

   Or simply:

   exit

   And Edit the Bash environment Configuration file

   nano $HOME/.bashrc

   Append:

   export JAVA_HOME=/usr/lib/jvm/jdk-9

   Possibly to Check the JDK 9 exact PATH use in another window:

   ls /usr/lib/jvm/

   Ctr+x to Save & Exit from nano Editor :)
   Next to Load the New Bash Environment:

   bash

7. Test New Java JDK 9 Installation.

   java -version

How to Install Netbeans 8 IDE for Java 9 on Xubuntu:
Setup NetBeans Java for Linux.

Now Thanks to Oracle-Sun Corporation you are able to Successfully Start Up with Java 9 Development.

Welcome to Java 9 New Dev Env! ;)