0 Install Oracle Java Packages

Ubuntu may use OpenJDK by default, but I note that some web services such as ezyZip.com might need the Oracle Java Runtime Environment (JRE) to be installed in the system for running the services properly. If you would like to get the proprietary Oracle Java packages for your system, you can download and install them with the steps below:

1. Go to Applications (or Main Menu) > Accessories > Terminal.
2. Enter sudo add-apt-repository ppa:webupd8team/java to add the partner repository.
3. Enter sudo apt-get update to update the source list.
4. Enter sudo apt-get install oracle-java7-installer
5. Enter sudo java -version to check the version of the Java used in the system.
6. Enter sudo update-alternatives --config java to choose the default Java for use in the system when necessary.