Here are the shortcut keys I use most. One of the big tricks with WSAD/Eclipse is learning the shortcut keys, because they don't appear in the right-click menu. Most I've learnt by inspecting the menubar, others from the documentation, but many have come by watching over the shoulder of my colleagues. Here are the ones I use the most.
|Ctrl+Shift+M||Import type under cursor|
|Ctrl+Shift+G||Show all references|
|Ctrl+Shift+U||Show references in this file|
|Ctrl+Q||Goto last modified editor position|
|Alt+Left,Alt+Right||Goto prev/next editor position in history|
|Ctrl+L||Goto Line number|
|Ctrl+Space||Complete whatever you're typing.|
(These all work from the Java perspective, and some work in other perspectives too.)
So, what shortcut keys do you use? Have I missed any of your favourites?