INSTALLING Oracle Java JDK 7 On Ubuntu 12.04 step by step

Friday, 30. November 2012

INSTALLING JDK 7 ON UBUNTU 12.04
================================

1) Download the JDK 7 from:
http://www.oracle.com/technetwork/java/javase/downloads/jdk7u9-downloads-1859576.html

2) You will download the tar.gz file. Extract it to your preferred location then run this:

— Create a new folder:

sudo mkdir -p /usr/lib/jvm/jdk1.7.0

— Move the content of JDK to your new location

sudo mv <EXTRACTED_FOLDER>/* /usr/lib/jvm/jdk1.7.0/

— Then Run the following lines one at a time

sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.7.0/bin/java" 1
 
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.7.0/bin/javac" 1 
 
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jdk1.7.0/bin/javaws" 1

All done!!

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