How to install java and activate in browser

**MichaelEber** · August 6th, 2012

I need to install java and get it activated in my browser.
When I go to the java site, it only offers RPM(?) format which acts like zipped files...just opening to show a bunch of folders. No install process.

There does not seem to be a deb file available. So how do I do this?

**GeneralCody** · August 6th, 2012

You can do this:

put the line

Code:

deb http://www.duinsoft.nl/pkg debs all

in the file /etc/apt/sources.list,

either using Software Sources from your System Menu or by editing the file in an editor (as root)or:
put this line in a file named (e.g.) duinsoft.list in the
directory

Code:

/etc/apt/sources.list.d

import the gpg key with the command (all on one line)

Code:

sudo apt-key adv --keyserver keys.gnupg.net --recv-keys 5CB26B26

enter the commands (two lines)

Code:

sudo apt-get update
sudo apt-get install update-sun-jre

or use Synaptic to install the package
installation of the Runtime Environment will follow automatically

**jim_deadlock** · August 6th, 2012

The method for manually installing the latest version from java.com can be found here: Click

**ajgreeny** · August 6th, 2012

Have you tried the openjdk versions of java and the icedtea plugins?

They used to be a bit of a problem on some websites and with some java applications, but seem to work everywhere now, as far as I can see.

**MichaelEber** · August 7th, 2012

I Installed OpenJDK but Chrome doesn't know that java is installed.

So how do I tell my browser I have java???

**ajgreeny** · August 7th, 2012

When you go to a site that needs java using Chrome or chromium, a display notification will appear at the top of the page asking if you wish to enable the java plugin. I can't remember if it is site specific or just a "first use" question.

You can go to http://www.java.com/en/download/inst...tect=jre&try=1 to test your java plugin, and you may then see the on screen dialog notification about enabling java that I spoke of.

**1976MrEMan** · August 12th, 2012

Hi, I'm a new ubuntu user, new to linux entirely as a matter of fact, using 12.04 on a 64-bit system. I have tried every tutorial I can find and followed instructions down to the letter. STILL no java runtime environment, just a mess of useless files! NONE of the tutorials work for me, and some seem to be skipping steps. Can anybody tell me a clear and concise way to install the oracle java environment (i don't need development) and possibly clean up this mess?