How-to install Oracle JDK 7 on Xubuntu 14.04 Trusty LTS 32-64bit Easy Visual-Guide

November 8th, 2014 by thelinuxevangelist

Oracle Java JDK 7 Quick-Start Xubuntu 14.04 Trusty LTS 32/64bit



The Guide Shows You in Easy-Steps How-to Install and Getting-Started with the Latest Oracle-Sun Official Java SE JDK 7 i586/x8664 for Xubuntu 14.04 Trusty Tahr LTS i386/amd64 Desktop Linux.

To SetUp You will need to Use the update-alternatives Tool to Update your System Java to 1.7 JDK7.

To the How-to Install Oracle JDK 7 on Xubuntu 14.04 Trusty Bottom there is a Link for Quick Getting-Started with Java JDK 7 Development and also to Install the Java Web-Server Tomcat 7 for Xubuntu Linux.

The Content and Details of How-to Install Oracle JDK 7 on Xubuntu 14.04 Trusty are Expressly Reduced to Give Focus Only to the Essentials Instructions and Commands and Make Tut Easier to Read & Digest ;)

Getting-Started Oracle JDK 7 on Xubuntu 14.04 Trusty - Featured
  1. Download Oracle Java SE JDK7 for Linux:

    Oracle JDK7 i586/x8664 tar.gz
  2. Double-Click on the tar.gz Archive and Extract into/tmp
    Or from Shell:

    tar xvzf ~/Downloads/jdk-7*.tar.gz -C /tmp/

    Java JDK 7 tar.gz Extraction Path

  3. Open a Command Line Terminal Window
    (Press “Enter” to Execute Commands)

    Install Oracle JDK 7 on Xubuntu 14.04 Trusty Open Terminal Window

  4. Relocate JDK 7
    sudo su

    If Got “User is Not in Sudoers file” then Look: Solution
    To Make a jvm Directory Only if Not already there
    (You can directly copy & paste the commands into the terminal)

    if [ ! -d "/usr/lib/jvm" ]; then mkdir /usr/lib/jvm; fi

    Set the root superUser as holder

    chown -R root:root /tmp/jdk1.7*

    Then to shift the Oracle JDK 7 contents

    mv /tmp/jdk1.7* /usr/lib/jvm/
    
  5. Installing Oracle Java JDK 7
    update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.7*/bin/java 1065
    
    update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.7*/bin/javac 1065
    
    update-alternatives --install /usr/bin/jar jar /usr/lib/jvm/jdk1.7*/bin/jar 1065
    
    update-alternatives --install /usr/bin/javaws javaws /usr/lib/jvm/jdk1.7*/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

    Append:

    export JAVA_HOME=/usr/lib/jvm/jdk1.7[uX]

    Replace the [uX] Looking for the Installed Java 7 Version with:

    ls /usr/lib/jvm/

    Ctr+x to Save & Exit from nano Editor :)
    Load New Bash Config:

    bash
  7. Testing New Java JDK 7 Installation Installation:

    java -version
  8. Getting-Started with Java Development:

    Getting-Started Quickly with JDK7
  9. How-to Install Latest Eclipse for Java Developers on Xubuntu:

    Install Eclipse Java for Xubuntu

    Now Thanks to Oracle-Sun Corporation You are Able to Successfully Start with Java JDK 7 Use & Development.

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