A short summary of my daily used Eclipse commands.
Image source: Willi Glenz - Screenshot Eclipse
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01 Activate Editor F12
02 Quick Assist control+1 control+2 control+3
03 Content Assist control+space
04 Active Keybindings shift+control+l
05 Full Screen alt+F11
06 Maximum Editor control+m
07 Open Declaration F3
08 Toggle Breakpoint shift+control+b
09 Insert line shift+enter shift+control+enter
10 Run Debug control+F11 F11
EDITING
01 Toggle Comment control+shift+/
02 Format control+shift+f
03 Maximum View control+m
04 Folding control+<Num-Div>
05 Delete line control+d
06 Undo control+z
07 Goto line number control+l
08 Format control+shift+f
09 sysout^<space>
10 main^<space>
FOLDING
01 control+shift+num-div
02 control+num-plus
03 control+num-minus
04 control+num-multiply