How to Install Oracle JDK 8 on Debian Stretch 9 Easy Guide

March 31, 2014 | By thelinuxevangelist | Filed in: Tutorial.

Install Oracle JDK 8 on Debian Stretch 9 i386/amd64

You are Welcome! The Tutorial Shows You Step-by-step How to Install Oracle-Sun Java SE JDK 8 in Debian Stretch 9 32/64-bit GNU/Linux Desktop/Server.

After Installing you will need to Use the update-alternatives Tool to Update your System Java to 1.8 JDK8.

Some Java 8 Features:

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

To the How to Install Oracle JDK 8 on Debian Stretch 9 Bottom there is a Link for Quick Start with Java JDK 8 Development and also to Install the Java Web-Server Tomcat 8 for Debian Linux.

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

Finally, the Contents and Details of How to Install Oracle JDK 8 on Debian Stretch 9 are Expressly Minimal to Give Focus Only to the Essentials Instructions and Commands and Make the Tut Easier to Understand ;)

Install Oracle JDK 8 on Debian Stretch 9 - Featured
  1. Download Oracle Java SE JDK8 for Linux:

    Oracle JDK8 i586/x8664 tar.gz
  2. Open Terminal Window
    (Press “Enter” to Execute Commands)

    Install Oracle JDK 8 on Debian Stretch 9 - Kde4 Open Terminal

    Or Login into Shell :)

  3. Double-Click on the JDK8 tar.gz Archive and Extract into
    /tmp

    Install Oracle JDK 8 on Debian Stretch 9 - Java JDK 8 tar.gz Extraction Path
    Or from Shell:

    tar xvfz ~/Downloads/jdk-8*.tar.gz -C /tmp/
  4. Relocate Oracle JDK 8
    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 owner

    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/
    
  5. Update System Java to Oracle JDK8

    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. :)

    Lastly to Exit from the Super-User session:

    exit
  6. 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
  7. Test New Java JDK 8 Installation

    java -version
  8. How to Install Eclipse Java on Debian

    Eclipse Java IDE Install
  9. Now Thanks to Oracle-Sun Corporation You are Able to Successfully Start Up with Java 8 Development.

    Welcome to Java 8 Challenge! ;)

    Install Latest IntelliJ IDEA for Java & Android on Linux Debian
    Setup IntelliJ on Debian.


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