How-to install Oracle JRE 7 on Lubuntu 12.10 Quantal 32/64bit Linux Easy Visual-Guide

February 23rd, 2014 by thelinuxevangelist

Install Oracle JRE 7 on Lubuntu 12.10 Quantal 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 Lubuntu Linux 12.10 Quantal Quetzal i386/amd64 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 Lubuntu 12.10 Quantal Bottom there is a Link to Installing Oracle JDK 7 and Eclipse for Java Developers for Lubuntu 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 Lubuntu 12.10 Quantal 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 Lubuntu 12.10 Quantal - 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 Lubuntu 12.10 Quantal - tar.gz Archive Extraction

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

    Install Oracle JRE 7 on Lubuntu 12.10 Quantal 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
    

    How-to Install Latest Eclipse for Java SE on Lubuntu:

    Install Eclipse for Java Lubuntu

    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 Lubuntu Linux:

    Install Oracle JDK for Lubuntu

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

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