When I am working in a multi-tab environment my fingers expect to be able to navigate through the tabs with CTRL-TAB and CTRL-SHIFT-TAB. In Eclipse this means I would expect to be able to use CTRL-TAB to switch between the files I am editing. However, by default it is set to CTRL-F6.
How To Fix It
The hot-keys are specified under the menu: Window > Preferences > General > Keys
First you need to unbind the commands "Next Tab" and "Previous Tab" by choosing that command and clicking the "Unbind Command" button.
Next bind the commands "Next Editor" and "Previous Editor" by choosing that command and pressing the keys CTRL-TAB or CTRL-SHIFT-TAB where it says Binding.