installing Java

In Ubuntu it must be done slightly different, since "su" is disabled by default plus these instructions ain't complete. Basicaly you need to write sudo in front of all commands but "cd" and "ls"

I use a different language, but the "Terminal" is located in the menu just above "Add applications" in the "Programs" menu in the cornor.

The newest version of java can't be installed using apt-get, so I did this:
Download the jre_something.bin from www.java.com, save it to the Desktop (or a place you remember)
Give it executing permissions be right clicking it and chose "Properties" -> "Rights"
Upen a terminal (or Konsole in KDE)
I used these commands:
cd /
sudo mkdir opt
(Enter password when promted)
cd opt
sudo mv ~<your user name, without "<" and ">">/Desktop/java_something.bin ./
sudo ./java_something.bin

Your guide needs the following imnportant steps, the new java version wont be used without:

cd /usr/bin
sudo ln -s /opt/jre1.5_05/bin/java (your version might be different)
cd ~/.mozilla/plugins (no sudo)
ln -s /opt/jre1.5_05/plugin/i386/ns7/libjavaplugin_oji.so (sudo not used because ~ is your home folder)

Hope this helps

I need a relevant question answered: How do you add the libjavaplugin_oji.so to all users, so i don't need linking it to.

See also:

http://doc.ubuntu.com/ubuntu/desktopguide/C/ch02.html#java

(Currently a draft copy.)

You may also choose to use Synaptic to install any of the free java runtimes that are available such as kaffe, sablevm, jamvm, etc.

I hope that helps.

Actually, as of Breezy, gnome-terminal is in the menu at Applications > Accessories > Terminal. You can also get to a virtual console terminal with Ctrl-Alt-F(1-6) (CAF7 to get back to the desktop).

The java documentation is currently at http://doc.ubuntu.com/ubuntu/desktopguide/C/programming.html#java and shows you how to use make-jpkg to install Sun's JRE.

Poul, I believe this procedure will add the Java Plugin all users.

If the above documentation link doesn't still have the JRE installation information, you can also find it in the wiki.ubuntu.com by searching for make-jpkg in the text of the pages.

james, none of that seemed to work.

I have been trying to install Java all night. I ran the bin file (used su) And it put the directories out under /usr/Java (where I ran the bin).
However it's still not right.

Any ideas on getting the full Java including dev environment?

Hi foxjazz -

This page is a bit outdated since it was written for ancient versions of Ubuntu, (it's a little surprising that the doc.ubuntu.com page isn't updated either; I guess the current starting point will be help.ubuntu.com.)

Ubuntu 6.06 LTS and above all have sun-java5-* and sun-java6-* packages. For the full dev environment you'd want the sun-java6-jdk package. (and/or the java5 version, depending on your needs.)

Here's the main help page: https://help.ubuntu.com/7.04/programming/C/java.html. Unfortunately it's even a little out of date, but the first line has this link https://help.ubuntu.com/community/Java which is up to date.

Let us know if those instructions don't help you.

-james.

Actually, the -jdk package doesn't include the full development
documentation. There's a separate package to install it, but you still need
to manually download the doc archive from java.sun.com for it. I expect
that to change as Java 7 starts to mature.

Thanks I found this article about installing Java:

http://www.javalobby.org/java/forums/t72809.html

Than I ran the

sudo update-alternatives --config java

command and walla, I finally got Java on my Ubuntu

I have also a problem with my Sun Java 6 Console it also render a blank window....

http://www.leinux.byethost17.com/view/javablank.png
here's a link that show both NetBeans and Java Console Render only blank screen

Java 6.0u2 has been released and may address the problem, but the only
package I know of is for gutsy (the upcoming ubuntu 7.10 release.) Would
you be able to try the non-packaged version from Sun? Or would you be able
to try the gutsy tribe release? (I don't know if the package made it in the
latest tribe - if not then you'd need to pull in updates.)

Regards,

-james.

  thanks.