Thursday, 10 June 2010

How To Install Java (JRE) in Ubuntu Linux

Java is an object-oriented programming language developed by Sun.  Java is used by a large number of websites and you will likely require it for an optimal web browsing experience.  Ubuntu doesn't come with Java, but it is incredibly easy to install (note: make sure you have previously enabled the multiverse repository).


A quick search for "sun-java" in Synaptic Package Manager results in the following main packages:

  • sun-java6-bin
  • sun-java6-demo
  • sun-java6-fonts
  • sun-java6-javadb
  • sun-java6-jdk
  • sun-java6-jre
  • sun-java6-plugin
  • sun-java6-source
 If you only require java for your internet experience (99% of users), you only require sun-java6-fontssun-java6-jre, and sun-java6-plugin.  Mark the packages for installation via Synaptic Package Manager or install via terminal:

sudo apt-get install sun-java6-fonts sun-java6-jre sun-java6-plugin

After going through the install prompts, you may verify the install via terminal with the command:

java -version

You should see output that looks something like this:

java version "1.6.0_20"
Java(TM) SE Runtime Environment (build 1.6.0_20-b02)
Java HotSpot(TM) Server VM (build 16.3-b01, mixed mode)

Lastly, you can check that java is working in your favourite internet browser by visiting this test page.  You have now successfully installed java in Ubuntu!

1 comments:

Anonymous said...

Thank You!!!!
To those new to Linux development, just getting the environment setup (in my case uBuntu 10.4 + resin) getting past the Java install was (sadly) a big problem :(

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