How-to Install Oracle JDK 8 on Kubuntu 16.04 Xenial 32-64bit Linux+GNU Easy Guide

May 20th, 2016 by thelinuxevangelist

Oracle JDK 8 QuickStart for Kubuntu 16.04 Xenial

The Linux Tutorial Shows You Step-by-Step How-to Install and Getting-Started with the Latest Oracle-Sun Official Java SE JDK 8 on Kubuntu 16.04 Xenial Xerus LTS i386/Amd64 GNU/Linux Desktop.

To SetUp You will need to Use the update-alternatives Tool to Update your System Java to 1.8 JDK8.

The Powerful Java 8 New Features:

  • LAMBDA Expressions Programming
  • The Stream API
  • The Nashorn Javascript Engine

To the How-to Install Oracle JDK 8 on Kubuntu 16.04 Xenial Bottom there is a Link for Quick Getting-Started with Java JDK 8 Development and also to Install the NetBeans Java 8 IDE.

To Make the Entire Process Easier to Visualize and Retain the Post Includes the Basic Screenshots of the Essentials Steps Involved.

The Content and Details of How-to Install Oracle JDK 8 on Kubuntu 16.04 Xenial are Expressly Reduced to Give Focus Only to the Essentials Instructions and Commands and Make Tut Easier to Read & Digest ;)

getting-started with Oracle JDK 8 on Kubuntu 16.04 Xenial - Featured
  1. Download Oracle Java SE JDK8 for Linux:

    Oracle JDK8 i586/x8664 tar.gz
  2. Double-Click on the tar.gz Archive and Extract into /tmp
    Or from Shell:

    tar xvzf ~/Downloads/jdk-8*.tar.gz -C /tmp/

    Install Oracle JDK 8 on Kubuntu 16.04 Xenial - Java JDK 8 tar.gz Extraction Path

  3. Open a Shell Terminal emulator window
    Kickoff > Type “kons” > Return
    (Press “Enter” to Execute Commands)

    Installing Oracle JDK 8 on Kubuntu 16.04 Xenial -  Kde5 Open  Terminal
  4. Relocate Java JDK 8

    sudo su

    If Got “User is Not in Sudoers file” then Look: Solution
    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 holder

    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 content with

    mv /tmp/jdk1.8* /usr/lib/jvm/
  5. 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. :)

  6. How-to Install Eclipse with Java 8 Support on Kubuntu
    Install Eclipse for Java 8.

  7. Setting JAVA_HOME User Environment Variable (Optional)

    su [myUserName]

    Edit the Bash environment Configuration file

    nano $HOME/.bashrc


    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:

  8. Test New Java JDK 8 Installation

    java -version
  9. How-to Install Netbeans 8 IDE for Java 8 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! ;)

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