Oracle JDK is no longer included by default in Ubuntu’s repositories due to licensing. OpenJDK is default now but many apps still don’t play nice with it. This is why I installed Oracle JDK.
I’ll walk you through the process of installing Oracle JDK 7 on Ubuntu 12.04 LTS Precise Pangolin, the easy way. For this we will use the “install oracle-java7-installer” package from “WEBUPD8”.
The “install oracle-java7-installer” package from “WEBUPD8” will download the official binaries from Oracle and install the JAVA 7 JDK, JRE and browser plugins on your machine.
Add the “WEBUPD8” PPA.
danesh@python:~$sudo add-apt-repository ppa:webupd8team/java
Update your repositories.
danesh@python:~$sudo apt-get update
Install JAVA 7 JDK.
danesh@python:~$sudo apt-get install oracle-java7-installer
To uninstall,
sudo apt-get remove oracle-java7-installer
Did it work for you? [Test here][2]
[1]: /wp-content/uploads/2012/05/Java-7-install-check.png) [2]: http://www.java.com/en/download/testjava.jsp “Test your Java install”