One well known quick view in Eclipse (3.0) is the outline quick view. This can be
invoked in the Java editor using 'Ctrl + O' for the current type and 'Ctrl
+ F3' for the type under cursor. This can be very useful to quickly navigate
between members of a type. If the shortcuts are pressed twice the members of the super
type are also shown.
Another useful quick view is for type hierarchy. Use the shortcut 'Ctrl + T'
to use this. Again if the shortcut is pressed twice the super type hierarchy is shown.
Here is how a quick view looks like: