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

September 30th, 2015 by thelinuxevangelist

Oracle JDK 8 QuickStart on Ubuntu 15.10 Wily Linux

The Linux Tutorial Shows You Step-by-Step How-to Install and Getting-Started with the Latest Oracle-Sun Official Java SE JDK 8 for Ubuntu 15.10 Wily Werewolf i386/Amd64 GNU/Linux Desktop/Server.

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

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 Ubuntu 15.10 Wily are Expressly Reduced to Give Focus Only to the Essentials Instructions and Commands and Make Tut Easier to Read & Digest ;)

Install Oracle JDK 8 on Ubuntu 15.10 Wily - Featured
  1. Open a Shell session
    Ctrl+Alt+t on Desktop
    (Press “Enter” to Execute Commands)

    Install Oracle JDK 8 on Ubuntu 15.10 Wily - Open Terminal Window

  2. Download Oracle Java SE JDK8 for Linux:

    Oracle JDK8 i586/x8664 tar.gz
  3. Double-Click on the tar.gz Archive and Extract into

    Or from Shell:

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

    Install Oracle JDK 8 on Ubuntu 15.10 Wily - Java JDK 8 tar.gz Extraction Path

  4. Relocate 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. 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:

  7. Test New Java JDK 8 Installation

    java -version
  8. 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 8 on Ubuntu: Installing NetBeans IDE for Java 8 on Ubuntu.

    How-to Install IntelliJ IDEA 2016 for Java 8 on Ubuntu: Installing IntelliJ IDEA for Java 8 on Ubuntu.

    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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