Install Java JDK on Ubuntu 10.04

sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"
sudo apt-get update
sudo apt-get install sun-java6-jdk

Source: http://happy-coding.com/install-sun-java6-jdk-on-ubuntu-10-04-lucid/

Unable to realize com.sun.media.codec.video.jmpx.Jmpx@ XXXXXX

I guess you are working with JMF.
If you got a problem like this, all you have to do is:

1. Copy all .so files FROM /JMF-2.1.1e/lib/ TO /usr/lib with: sudo cp *.so /usr/lib/
   
2. Compile your code :)

Install JMF 2.1.1e in Ubuntu 9.04

1. Download JMF .bin from here, choose
2. Rename the file from .bin to .zip
3. Copy the three .jar files FROM /JMF-2.1.1e/lib/ TO /usr/lib/jvm/java-6-sun/jre/lib/ext/ with this: sudo cp *.jar /usr/lib/jvm/java-6-sun/jre/lib/ext/
4. Restart, and you got it!.

Source: this

HOT TO INSTALL JAVA IN UBUNTU

The fast way:

sudo apt-get install sun-java6-jdk