How to Install Oracle Java JDK 7 X86_64 on Linux Debian 6 Squeeze Xfce 64-bit Easy Visual-Guide

The Guide shows you in Easy Steps How to Install Oracle-Sun Java JDK 7 x8664 for Debian 6 Squeeze Xfce Amd64 Desktop.

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

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

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.

1. Download Oracle Java SE JDK 7:

   JDK 7 x64 tar.gz
   On the JDK Section Select the x64.tar.gz Release

2. Find and Double-Click on the tar.gz Archive

   Extract it Into the /tmp Folder.

   

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

   

   In case first see: Terminal QuickStart Guide.

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 and Running with JDK 7:

   Quick Start Tutorial for JDK 7 Development

   Java Dev Quick Start