How to Install Java JDK 7 in Ubuntu

Chances are you installed Open JDK, which ships as default in the package manager and you’re having compatibility issues with some of the apps requiring Java native Java Development Kit. Not only can mismatch of different vendors cause havoc, but also version issues especially between JDK 6 and JDK 7.

Installation of Oracle Java JDK 7 can turn into a major headache, but it doesn’t have to. Here are the steps for a straight forward Java JDK 7 installation in Ubuntu ...

Install Oracle Java JRE on Ubuntu 12.04

Dealing with different versions of Java Virtual Machine or Java Runtime Environment (JRE/JVM) has always been a bit of a pain, especially on Linux, where we have not only different versions, but also different vendors. To make matters worse, some application require the original Sun/Oracle version, while others are perfectly fine with open source version.

In the past, Sun provided an installer for deb and rpm based distributions, but since Ubuntu 12.04, there is no luck. However, installing Oracle’s JVM manually is actually straight ...