Ubuntu Linux Install Sun Java Development Kit ( JDK ) and Java Runtime Environment ( JRE )

Miguel:

I had the same problem. I solved it by running:
sudo update-java-alternatives -s java-6-sun

You will also need to install sun-java6-jdk if you have not done that already

thanks. works

thx dru (:

Thanks yeah!!!! I could install java… I m not a newbie but was still facing lots of problem… and all was resolved following these simple steps religiously….

I follow the instructions. but if I type
$ java -version
java version “1.5.0_14″
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_14-b03)
Java HotSpot(TM) Client VM (build 1.5.0_14-b03, mixed mode, sharing)

jdk1.5.0_14 installed at /usr/java/jdk1.5.0_14/

should I remove jdk1.5.0_14 first?

thx

Thanks for this. I’ve been setting up several Ubuntu laptops for students in my AP Computer Science class and this was very helpful.

Apparently I was able to install SE Runtime Environment build 1.6.0_03-b05 successfully since it shows up on my terminal window when i call it up. I still am not able to get my active window in my stock account which went away when I installed Firefox 3.01. When I was working in FF 3, I had to install the plug in to make it work. What else do I need?
Ubuntu 7.10 Firefox 3.01

Above under Setup Default Java Version, at the end it says to save and close the file. How do you save? I can’t find a command for ’save’.

I am a beginner,I am having a problem in doing the following steps :

You also need to edit a file called /etc/jvm. This file defines the default system JVM search order. Each JVM should list their JAVA_HOME compatible directory in this file. The default system JVM is the first one available from top to bottom. Open /etc/jvm
$ sudo vi /etc/jvm
Make sure /usr/lib/jvm/java-6-sun is added to the top of JVM list
/usr/lib/jvm/java-6-sun
At the end your file should read as follows:
/usr/lib/jvm/java-6-sun
/usr/lib/jvm/java-gcj
/usr/lib/jvm/ia32-java-1.5.0-sun
/usr/lib/jvm/java-1.5.0-sun
/usr

Am now internet banking using firefox and my bank’s java dependent website, thanks.

Thanks for the great writeup! This is exactly what I was looking for and I was up and running in no time.

hey!!!
i followed the instruction but i m not able install jdk in linux..
plse help me….
i m

Thanks pal!

i am try but i am not able to install jdk so please help me

jee@jee-desktop:~$ sudo apt-get install sun-java6-bin sun-java6-jre sun-java6-jdk
E: dpkg was interrupted, you must manually run ‘dpkg –configure -a’ to correct the problem.
anyone can help me.After i installed java in ubuntu8.04,i got this error.

Thanks a lot for the post! Anything that’s not config/make/make install is a bit confusing to me — Ubuntu’s like Windows with less-slick graphics :) Anyway, no religious wars — your post was *really* helpful.

Plase help me I’m having same as VANI.Now I can not able to install any soft in my Ubuntu.Please PLEASE help me

Why is the Ubuntu multiverse repository for Sun-JDK 1.6 only on 1.6.0_07 while Sun says it’s up to 1.6.0_14?

Why is the Ubuntu multiverse repository for Sun-JDK 1.6 only on 1.6.0_07 while Sun says it’s up to 1.6.0_14?

step by step
excelent.
java sun it’s work !

i see instal the java instructin .that methord folow.cannot instal java in ubuntu 8.04 lts.please help me

thank u for previous information.
i install some software in way to terminal.that time i see dpkg error i ubuntu 8.04.I can’t install softwares.
please help me.

when i input the root password on the terminal i get “sorry try again” HELP

When i want to run a java prog any more sophisticated than hello world or similar, the jvm gives me the following:
baruch@baruch-laptop:~/jdownloader$ java -jar jdupdate.jar
Exception in thread “main” java.lang.NoClassDefFoundError: jd.update.Main
at java.lang.Class.initializeClass(libgcj.so.90)
Caused by: java.lang.ClassNotFoundException: com.sun.java.swing.plaf.windows.WindowsLookAndFeel not found in gnu.gcj.runtime.SystemClassLoader{urls=[file:jdupdate.jar], parent=gnu.gcj.runtime.ExtensionClassLoader{urls=[], parent=null}}
at java.net.URLClassLoader.findClass(libgcj.so.90)
at gnu.gcj.runtime.SystemClassLoader.findClass(libgcj.so.90)
at java.lang.ClassLoader.loadClass(libgcj.so.90)
at java.lang.ClassLoader.loadClass(libgcj.so.90)
at java.lang.Class.forName(libgcj.so.90)
at java.lang.Class.initializeClass(libgcj.so.90)
What is wrong with my current java installation (i have installed an parallel one, it worked like a charm). Does anybody know how to solve this problem? And how to set the parallelly installed jvm to be the standard one? TIA.

I have installed Sun java. How to “switch”? TIA.

Works! Java VM ist alive and kicking again:) Thx a lot!!!!

Remember to set “JAVA_JDK” for intelliIDE to run. Also make sure it’s not using openjava jdk which may have installed if you installed icetea jre in firefox, then you’re JRE and JDK may have switched. Remember to reset your JAVA_HOME env (which java install never does for you) if you updated and they’ve decided to break your symlink. Updated Ubuntu? No problem someone will have decided that .bash_profile is now to be called .bachrc, why you ask? God knows – but I’m sure they will change it back again to piss you off on the next update. Java would be great if it wasn’t for all the moronic bullshit you have to configure and their insane versioning… oh yeah it’s JEE now with Java6 that I work with not 1.6!!. Couple this with Linux vendors stupid changing of config files with every release and you’ve got one giant mess.

Hi, most everything went well except when I did:

$ sudo update-java-alternatives -s java-6-sun
update-alternatives: error: no alternatives for mozilla-javaplugin.so.
update-alternatives: error: no alternatives for pluginappletviewer.
update-alternatives: error: no alternatives for xulrunner-1.9-javaplugin.so.
update-alternatives: error: no alternatives for xulrunner-1.9-javaplugin.so.

Everything in the write up works though, will this be a problem with other things you think? I am not sure what this line is supposed to accomplish. Can you give me some insight on that? Thanks, much!

hello,everyone
i got a problem when i install sun java.
here is errors.
how can i fix it?
apt-get install sun-java6-jre
E: dpkg was interrupted, you must manually run ‘dpkg –configure -a’ to correct the problem.
pls,help

i solved the above but new problem is i dont know how to do sudo vi /etc/jvm
wen i entered this command to terminal and the following /usr/lib/jvm/java-6-sun
got error E486: pattern not found: usr
pls help me

use this way,i have successed install jdk on my ubuntu9.10.
many tks!

i could not play my videos and music on my ubuntu.. what’s the better way to enable me to do so????

Thank you, Vivek. As a newbie to Ubuntu, installing and configuring the individual components has been very frustrating to learn. Your post was clear and precise, allowing me to get java up and running (after numerous failed attempts).

- Russell

thanks man,
quite helpful :)

Thanks, Very good Tutorial!