I have recently install ubuntu 12.04, I want to install netBean 7.3. so I need to install jdk, to install jdk I have downloaded file from synaptic package manager. Then I install jdk using synaptic package manager, then tring to install netbean, but it says that There is no comparable jdk found. Then I download jdk form http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html and follow the step from the link http://www.liberiangeek.net/2012/04/install-oracle-java-jdk-7-in-ubuntu-12-04-precise-pangolin/ with little change for different version of jdk22.214.171.124 and I guess jdk install correctly. Then I again try to install netbean and it say that There is no comparable jdk found*. any help ?