If you are talking about the terminal emulator terminator
, it does not need Java and it is installable from the main repositories. This is what you get when installing on a fresh 13.04 install:
terdon@oregano ~ $ sudo apt-get install terminator
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following extra packages will be installed:
libbonobo2-0 libbonobo2-common libbonoboui2-0 libbonoboui2-common
libglade2-0 libgnome2-0 libgnome2-bin libgnome2-common libgnomecanvas2-0
libgnomecanvas2-common libgnomeui-0 libgnomeui-common libgnomevfs2-0
libgnomevfs2-common libidl-common libidl0 libkeybinder0 liborbit2
libvte-common libvte9 python-gnome2 python-keybinder python-pyorbit
python-vte
Suggested packages:
libbonobo2-bin desktop-base libgnomevfs2-bin libgnomevfs2-extra gamin fam
gnome-mime-data python-gnome2-doc python-pyorbit-dbg
The following NEW packages will be installed:
libbonobo2-0 libbonobo2-common libbonoboui2-0 libbonoboui2-common
libglade2-0 libgnome2-0 libgnome2-bin libgnome2-common libgnomecanvas2-0
libgnomecanvas2-common libgnomeui-0 libgnomeui-common libgnomevfs2-0
libgnomevfs2-common libidl-common libidl0 libkeybinder0 liborbit2
libvte-common libvte9 python-gnome2 python-keybinder python-pyorbit
python-vte terminator
As you can see in the output above, there is no java or JRE requirement and you can install terminator (which is a python program) directly from the Ubuntu repositories.
There are actually two terminal emulators with the same name. The one you tried to install does indeed need Java and if you are really sure you want that one, despite its being much heavier (java) and complicated to install, you can install a JRE with
sudo apt-get install openjdk-7-jre
I stress however, that installing jre to get a terminal emulator is ridiculous. As far as I can tell both terminator flavors have the same functionality but the one you want to install is simply much much much heavier on the system. Still, your choice.