How to Install Oracle JDK 8 on CrunchBang Linux 11/10/9 Easy Guide

April 15, 2014 | By the+gnu+linux+evangelist | Filed in: Tutorial.

Getting-Started with Java 8 Development on CrunchBang Linux

The Guide shows you in Easy-Steps How to Install Oracle-Sun Java SE JDK 8 i586/x8664 for CrunchBang Linux 9/10/11 Desktop/Server.

After Installing in you may need to make use of the update-alternatives Tool to Update your System Java.

Some Java 8 Features:

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

To the How to Install Oracle JDK 8 in CrunchBang Linux Bottom there is a Link for Quick Start with Java JDK 8 Development and also to Install the Java Web-Server Tomcat 7 for CrunchBang Linux.

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

The Contents and Details of How to Install Oracle JDK 8 in CrunchBang Linux are Expressly Minimal to Give Focus Only to the Essentials Instructions and Commands and Make the Tut Easier to Understand ;)

Oracle JDK 8 Ubuntu 22.04 Installation – Step-by-step Guide
  1. Download Oracle Java SE JDK8 for Linux.

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

    Install Oracle JDK 8 on CrunchBang Linux 9/10/11 - Java JDK 8 tar.gz Extraction Path
    Or from Shell:

    tar xvfz ~/Downloads/jdk-8*.tar.gz -C /tmp/
  3. Open a Terminal Window
    (Press “Enter” to Execute Commands).

    Right-Click on Desktop > Terminal.

    Or

    Cmd+t.

  4. Relocate Oracle 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/
    
  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
    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 CrunchBang

    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 the Latest IntelliJ IDEA for Java & Android on CrunchBang

    Installing IntelliJ on CrunchBang

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