Wednesday, January 18, 2017

Install Oracle Java Development Kit on Ubuntu

First of all, you need to download it from Oracle web site

http://www.oracle.com/technetwork/pt/java/javase/downloads/index.html

Then unzip it somewhere (be carefull that location is reachable from users who would use java)

tar xvzf jdk-*-linux-x64.tar.gz

The fun part would be here...

You should set your JAVA_HOME. Set it in your /etc/environment for every users or .profile for your current user

Now, we will create two symbolic links for java and javac command using update-alternatives command. There's two steps : install and set. The first create a symbolic link and register it to etc/alternatives with its alias. The second actives this alias. So, let's do this :


sudo update-alternatives --install /usr/bin/java java /home/..../jdk*/bin/java 1
sudo update-alternatives --install /usr/bin/javac javac /home/..../jdk*/bin/javac 1

sudo update-alternatives --set java /home/..../jdk*/bin/java
sudo update-alternatives --set javac /home/..../jdk*/bin/javac

No comments: