How-to install Oracle JRE 7 on Ubuntu 12.04 Precise i386/amd64 Linux Easy Visual-Guide

February 19th, 2014 by thelinuxevangelist

Install Oracle JRE 7 on Ubuntu 12.04 Precise 32/64bit




The Guide Shows You in Easy-Steps How-to Install and Getting-Started with the Latest Oracle-Sun Official Java SE JRE 7 i586/x64 for Ubuntu Linux 12.04 Precise Pangolin LTS 32/64bit Unity Desktop.

To SetUp Oracle JDK you will need to Use the update-alternatives Tool to Update your System Java to 1.7 JRE7.

To the Oracle JRE 7 Installation Ubuntu 12.04 Precise Bottom there is a Link to Installing Oracle JDK 7 and Eclipse for Java Developers for Ubuntu Linux.

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

The Content and Details of How-to Install Oracle JRE 7 on Ubuntu 12.04 Precise are Expressly Reduced to Give Focus Only to the Essentials Instructions and Commands and Make the Tut Easier to Understand ;)

Install Oracle JRE 7 on Ubuntu 12.04 Precise - Featured
  1. Download Oracle Java SE JRE7 for Linux:

    Oracle JRE7 i586/x8664 tar.gz
  2. Double-Click on JRE7 Archive and Extract into /tmp

    Install Oracle JRE 7 on Ubuntu 12.04 Precise - tar.gz Archive Extraction

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

    Install Oracle JRE 7 on Ubuntu 12.04 Precise Open Terminal Window

  4. Relocate Oracle JRE 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 JRE7
    update-alternatives --install \
    /usr/bin/java java /usr/lib/jvm/jre1.7*/bin/java 1065
    
    update-alternatives --install \
    /usr/bin/javaws javaws /usr/lib/jvm/jre1.7*/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. :)
    Last Achieve the SuperUser session:

    exit
  6. How-to Install Oracle-Sun JDK 7 on Ubuntu Linux:

    Install Oracle JDK for Ubuntu

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

    How-to Install Latest Eclipse for Java Developers on Ubuntu:

    Install Eclipse Java for Ubuntu
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