Can't install Sun Java

[ayush]

ayush@hp-laptop:/media/KINGSTON/OSDL/temp$ sudo apt-get install sun-java6-jre
Reading package lists... Done
Building dependency tree
Reading state information... Done
Package sun-java6-jre is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package sun-java6-jre has no installation candidate

I've already done $sudo apt-get update many times.
I need Sun Java to run a particular application (JDownloader). Any help would be greatly appreciated.

[bitzbox]

Re: Can't install Sun Java

You need to enable the Partner repository.

Regards .....

[ayush]

Re: Can't install Sun Java

You need to enable the Partner repository.

Regards .....

Thanks