The language itself derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities. JavaScript, a scripting language, shares a similar name and has similar syntax, but is not directly related to Java.
Currently Ubuntu has the following Java packages
sun-java6-bin -- Contains the binaries
sun-java6-demo -- Contains demos and examples
sun-java6-doc -- Contains the documentation
sun-java6-fonts -- Contains the Lucida TrueType fonts from the JRE
sun-java6-jdk -- Contains the metapackage for the JDK
sun-java6-jre -- Contains the metapackage for the JRE
sun-java6-plugin -- Contains the plug-in for Mozilla-based browsers
sun-java6-source -- Contains source files for the JDK
Installing the Java Runtime Environment
First you need to check multiverse repository enabled or not after that open a terminal window. Since you are going to be installing the JRE and the web browser plug-in, you'll be using the following command from a terminal
sudo apt-get install sun-java6-jre sun-java6-plugin sun-java6-fonts
Once it downloads the packages and begins the installation, you'll get a screen that contains the Sun Operating System Distributor License for Java and hit Enter to continue. You'll see a dialog that asks you if you agree with the DLJ license terms. Select Yes, and hit Enter; the JRE will finish installing.
Testing Java Runtime Environment
You'll want to confirm that your system is configured properly for Sun's JRE. This is a two-step process.
First, check that the JRE is properly installed by running the following command from a terminal.
java -version
You should get similar output
java version "1.6.0″
Java(TM) SE Runtime Environment (build 1.6.0-b105)
Java HotSpot(TM) Client VM (build 1.6.0-b105, mixed mode, sharing)
Testing Java Plugin for Firefox
open Firefox and typing about:plugins in the address bar and check for java plugin
Incoming search terms:
- ubuntu install java
- how to install java on ubuntu
- install java on ubuntu
- how to install java in ubuntu
- installing java on ubuntu
- ubuntu java install
- jre for ubuntu
- how to install java ubuntu
- apt-get install java
- how to install jre on ubuntu
Yes, Les, thanks for that. Just what I needed too.
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I have followed the above instructions and Java was installed no problem. When I go to yahoo games it says I don’t have java. What am I doing wrong?
Thanks
Helen
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try to run the following command in your firefox
about:plugins
and check java plugin is showing or not
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Hi
Yes the java plugin is showing
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when i do it(pasted sudo apt-get install sun-java6-jre sun-java6-plugin sun-java6-fonts) it said that the installer sun-java6-jre can not be found, what should i do =S
please help me
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also i tried the
/etc/apt/sources.list file
and it said
/etc/apt/sources.list file
bash: /etc/apt/sources.list: Permission denied
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Help me please, I’m totally nob.
I try to run “about:plugins” in my firefox but java plugin is not showing
Thanks before.
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@prast
try this
Check your java version.
java -version
In my case is the last one from the Ubuntu repo:
1.6.0_05
Configure java with the following command
sudo update-alternatives
--configjavaNow go to /usr/lib/jvm/java-6-sun/jre/bin/java
Run the following command from terminal
sudo sed -i ‘s/XINERAMA/FAKEEXTN/g’ /usr/lib/jvm/java-6-sun-1.6.0.05/jre/lib/i386/xawt/libmawt.so
Delete all links
sudo rm -r /usr/lib/firefox/plugins/libjava*
sudo rm -r /usr/lib/firefox-plugins/plugins/libjava*
sudo rm -r /usr/lib/firefox-3.0b3/plugins/libjava*
Reconfigure alternatives
sudo update-alternatives
--allLeave everything as default except for
rmiregistry
java
keytool
rmid
orbd
All of these entries must have /usr/lib/jvm/java-6-sun/jre/bin/ as alternative
From the terminal refresh java shortcuts
sudo update-java-alternatives -s $(update-java-alternatives -l | cut -d’ ‘ -f1)
Then re-create java shortcuts for Firefox(es):
sudo ln -s /usr/lib/jvm/java-6-sun-1.6.0.05/jre/plugin/i386/ns7/libjavaplugin_oji.so /usr/lib/firefox/plugins/
sudo ln -s /usr/lib/jvm/java-6-sun-1.6.0.05/jre/plugin/i386/ns7/libjavaplugin_oji.so /usr/lib/firefox-plugins/plugins/
sudo ln -s /usr/lib/jvm/java-6-sun-1.6.0.05/jre/plugin/i386/ns7/libjavaplugin_oji.so /usr/lib/firefox-3.0b3/plugins/
Now open Firefox, type about : plugins in the address bar and java should be there
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Hi,
To accept the license, I click on F12.
I have ubuntu feisty fawn installed with current updates. I used your terminal command which installed the .deb file. I can use java in both Firefox and my default browser Swiftweasel. But,
When I type in java -version, I get the following:
The program ;java’ can be found in the following packages:
jsrel.4, gij-4.1, kaffe, jamvm java-gcj-compat, cacao, sablevm,
bash: java: command not found.
When I do a search for ‘java’ file in system, I have links (broken) in the following for /etc/alternatives, for java, javaws,javaws.1.gz java_vm. And links (broken) in /usr/bin for javaws, java, java_vm, and link (broken) in /usr/share/man/man1 for javaws.1.gz and java.1.gz
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Hi,
I can’t seem to get firefox to recognize Java. I’ve installed the plugin and tried your instructions above, but when I make the sym link it comes up as a broken link…any ideas why that’s happening?
Many thanks!
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I also could not get firefox to use sun-java. I tried a lot of ideas from forums, etc. It finally started to work after running:
sudo update-alternatives –config xulrunner-1.9-javaplugin.so
and selecting the line for sun java. This was using sun-java6.
I found this by running “update-alternatives -all” and selecting everything that looked like sun java. The above was the only one that I found that had not already be set to a sun java with –config java” and “–config jre”
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Can anyone please tell me how to install JRE for IE in ubuntu?
Thank you…
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look im trying to run runscape for 3 months so pls if u have a guide pls tell me thank u
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If some one is stuck at license page. He should follow these steps.
1- Press the tab key, control will go at
2- Then press enter key
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Ubuntu 8.04
Guide worked absolutely fine for me – but I’m glad I read the bit about using the arrow down key and tab key on the licence page.
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I’m Mr. “no idea of installation”
i,m also a noob in this kind of situation and i think this problem would be very simple to answer….
when i started to open the package it says:
“dependecies not satisfiable” then a name of an anther software next to it(e.g. jdk bla bla bla)…
what will i do
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ca n u guys help me???
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I just installed Ubuntu. Never used anyother opperating system before. I can see why. The last time I had trouble installing stuff was back in Win 95 days. However I will persist and learn. Just wish it was easier to install stuff.
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Gh423 in comment 41 had the final key for me as well. I’m running hardy and firefox 3. There is a test applet for seeing your results.
Thanks everyone.
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I just started using linux for the first time today and im loving its versatility, but i really dont know how to install anything i know i probably shouldn’t be posting here, but you guys seem to really know the OS so i was wondering if you could point me towards a site that could teach me all the stuff i need to know to use Ubuntu properly.
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Can anyone help with this.someone else also posted the similar one but i didnt find any solution to it.
The program ‘java’ can be found in the following packages:
* java-gcj-compat-headless
* openjdk-6-jre-headless
* j2re1.4
* kaffe
* cacao
* gij-4.1
* jamvm
* gij-4.2
* sablevm
Try: sudo apt-get install
bash: java: command not found
i dont know how to add the java javac and commands like this to run in terminal. Thanks
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#51: if you are using ubuntu just run the following in the given order
$ sudo apt-get install sun-java6-bin sun-java6-jre sun-java6-jdk
$ sudo update-java-alternatives -s java-6-sun
and then add the line below at the start of /etc/jvm file
/usr/lib/jvm/java-6-sun
the commands should work for other distros too. But am not sure if they come with an update-java-alternatives utility
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hey everyone
i only want to download javaaaaaaa!
any kind the 6 or the 5 or w/e just need some help cuz when i download it.. it doesnt do anything!!!
is it my internet or something!?
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#52: THANK YOU! That “sudo update-java-alternatives -s java-6-sun” totally fixed my CLI java.
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OMG…How simple was that!
Keith S-C
“I had the same problem. I scrolled all the way to the bottom and then clicked on TAB to get the button to be highlighted. This took me a long time to figure out!”
Me To… Oh Brother!
Thanks Keith for the input. I was hitting everything on the keyboard that had to do with the term.
Boy do I feel like a dummy.
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By the way all of this to look at the radar maps on the National Weather Service’s site nws.noaa.gov or
http://radar.weather.gov/Conus/index_loop.php
We are in our hurricane season now in Florida an I rather be seeing a Java based moving image then a static one.
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This was about the most trouble free install guide for Java that I’ve found. It went without a hitch.
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I am trying to install java 1.6 downloaded from Sun. Following their directions on how to install it, I keep getting “no such file or directory”. can one of you please help out a newby?
Thanks
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@ 58: I’m newby too and got it working through this link: http://openjdk.java.net/install/
For me, this worked fine, after I first followed the steps of comment #52, but could not save changes to ‘/etc/jvm file’
(and it seems that’s a necessity to get it working)
Well, then I just followed the steps here: http://openjdk.java.net/install/
et voila, all works fine now. good luck
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hay guys,
I am trying install Java Runtime Environment JRE.. this the commmand i use … sudo apt-get install sun-java6-jre.. this what i get
Reading package lists… Done
Building dependency tree
Reading state information… Done
E: Couldn’t find package san-java5-jre
does any1 got any idea whats that mean..
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