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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
Try this - go to http://www.java.com , click “Do I have Java?”, Firefox will say you are missing a plugin, let it install Java. Done!
I am new in Ubuntu 7.10. However I want to Install Java Runtime Environment so as to install cafepilot software. I down loaded jre-6u16-linux-i586.bin self extracting. But I have been unable to install.
At least I know that I have to go to the root so I type sudo -i
and I put there the password. Please help me out step by step
Thank you
my email address is titus.gitau@gmail.com
Try to install the following packages
sudo aptitude install sun-java6-jre sun-java6-plugin sun-java6-fonts
Make sure you have enabled universe,multiverse repositories
Thanks! Much more helpful than what I found with numerous other Google searches. Appreciated!
this link helped me to resolve the Java plugin problem in Ubuntu 9.0.4 version with firefox. Thanks to the owner.
I tried installing sun-java6 on ubuntu 9.04 (for runescape) but didn’t work…
any suggestions???
Hey,iv installed bothe 5 and 6 of the jre and jdk and i still can’t run dr java. Any suggestions?
Alex .G., I also tried to install JRE for Runescape amongst other several reasons. You should download Ubuntu 9.10 and install it, although you could have issues with your WiFi. It worked fine for me on Karmic (9.10). Hope I could help you!
Just checked. Something is wrong with my Java too. Going to investigate.
okay so I have ubuntu on my computer great i type in what has been suggested it started then stops and says can’t find. so I go the java website listed do what it says do i have linux 6 u-i586.bin on my computer will not open and the terminal will not recognize it. so now what do i do? i’m to the point i will let you do the work remotely if you like because i’m pretty good on computers but i don’t know about this program thought it was suppose to easy but you can’t doin anything because you can’t the damn thang to work right. PLEASE PLEASE PLEASE HELP ME!!!