I am having trouble trying to install Netbeans/JDK 7 on Ubuntu.
When i try to install Netbeans, it asks for JDK 7, but i was unable to install it via apt-get.
I've tried this command already: sudo apt-get install openjdk-7-jdk
But i get the following error: E: Package 'openjdk-7-jdk' has no installation candidate
Error E: Package 'package_name' has no installation candidate most probably means that the APT cannot find (i.e. download) the installation package.
To solve this, open Software and Updates and try changing Download from server (choose Main first). On my system it's Server for United States.
If it still does not work, then you can manually download the .deb package and install it.