March 21, 2012 · General · Email This Post

Java is a programming language and computing platform first released by Sun Microsystems in 1995. It is the underlying technology that powers state-of-the-art programs including utilities, games, and business applications. Java runs on more than 850 million personal computers worldwide, and on billions of devices worldwide, including mobile and TV devices.

Preparing your system

First you need to remove openjdk for this run the following command from your terminal

sudo apt-get purge openjdk*

If you installed java 7 from any other PPA and you are having problem with java then you have to do following steps before installing the PPA menctioned here

sudo rm /var/lib/dpkg/info/oracle-java7-installer*
sudo apt-get purge oracle-java7-installer*
sudo rm /etc/apt/sources.list.d/*java*
sudo apt-get update

Install oracle java 7 in ubuntu 13.04/12.10/12.04

Open the terminal and run the following commands

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer

You can check the java version by searching java in dashboard

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83 Comments to “How to install oracle java 7 in ubuntu 13.04/12.10/12.04”

  1. Sam says:

    “sudo add-apt-repository ppa:webupd8team/java
    sudo apt-get update
    sudo apt-get install oracle-java7-installer”

    What am I doing in the fist two steps above. The last one is obvious.


    Jan Kazemier Reply:

    In the first command you are adding a repository to apt, where you can find the installer. The second command updates the cache of apt, after which it can find the oracle-java7-installer.


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