Oracle Java JDK 7 How to Install and Getting Started on Linux DescentOS 3.0.2 Mate 32bit Easy Visual-Guide

April 7, 2013 | By Duchateaux.

The Tutorial shows you in Easy-Steps How to Install Oracle-Sun Java JDK 7 i586 for Linux DescentOS 3.0.2 Mate i386 Desktop.

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

To the Article Bottom there is a Link for Quick Start with Java JDK 7 Development and also How to Install Apache Tomcat7 Server for Linux DescentOS.

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

The Content give Focus Only to the Essentials Instructions and Commands to make it Easier to Follow.

Java On Ubuntu
  1. Download Oracle Java SE JDK 7:

    JDK 7 i586.tar.gz
  2. Double-Click on the tar.gz Archive and Extract into /tmp
    Java JDK 7 tar.gz Extraction 1

  3. Open a Terminal Window
    (Press “Enter” to Execute Commands) Linux DescentOS 3 Mate 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 on Java Development:

  7. How to Install Apache Tomcat7 Server on Linux DescentOS:


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