Oracle Java JDK 7 How to Install and Getting Started on Linux Kubuntu 12.04 I386 Precise Easy Visual-Guide

August 31, 2012 | By Duchateaux.

Hi! The Tutorial shows you Step-by-Step How to Install and Getting-Started with Oracle-Sun Official Java JDK 7 i586 for Linux Kubuntu 12.04 Precise Pangolin KDE4 32-bit Desktop.

After Installing you will need to Use the update-alternatives Command Tool to Update your System Java to Oracle Java 1.7 JDK.

To the Article Bottom there is a Link for Quick Start with Java JDK 7 Development and also How to Install Java Web-Servers Tomcat 7 for Linux Kubuntu.

And this Visual Guide includes the Basic Screenshots of All GUI Steps involved.

The Contents and Details are Essentials and Give Focus only to Instructions and Commands.

Java On Ubuntu
  1. Download Oracle Java SE JDK:

    Oracle JDK i586.tar.gz
  2. Double-Click on the Archive and Extract into /tmp
    KDE Extract Java JDK 7 tar.gz

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

    Linux Kubuntu Open Terminal

  4. Relocate JDK 7

    su 

    If Got “User is Not in Sudoers file” then see: How to Enable sudo

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

    The above command is used to create a jvm directory if not already there.

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

    Reiterate the Execution Permission over the Java binaries

    chmod -R +x /tmp/jdk1.7*/bin

    Finally, Shift the Java contents with

    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

    And for the Java Compiler instead:

    sudo update-alternatives --config javac

    To Switch of Java Version Just Enter the Reference Number on First, Column. :)

  6. Getting-Started:

Guides to Installing the Tomcat 7 Server on Linux Kubuntu:


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