Eclipse provides lots of keyboard shortcuts which can save your lot of time. Here is a list of shortcuts that you might want to try out: -

 **Navigation Shortcuts**

*Shortcut   Description*

Ctrl + Shift + R     Open / Search for resources, e.g. files
Ctrl + Shift + T     Open / Search for Types
Ctrl + E             Allows to select an editor from the currently open editors
Ctrl + F8             Shortcut for switching perspectives
Alt +  or Alt +      Go to previous/ next editor position in history
Ctrl-PageUp/PageDown     Switch to previous/next editor
F3                   Go to the declaration of this variable
Ctrl + Shift + P     Go to the matching bracket


**Search Shortcuts**    

*Shortcut Description*

Ctrl + .       Go to the next problem / error
Ctrl + ,       Go to the previous problem / error
F4 on a variable     Show type hierarchy
Ctrl + J , Ctrl + K     Incremental search, find next
Ctrl + Shift + G     Search for references in the workspace




**Run Shortcuts**

*Shortcut  Description*

Ctrl + F11     Run last launched
Alt + Shift + X  J     Run current selected class as Java application





**Editing Shortcuts**

*Shortcut  Description*

Ctrl + 1     Quickfix; result depending on cursor position
Ctrl + Space     Content assist/ code completion
Ctrl + T     Show the inheritance tree of the current Java class
Ctrl + O     Show all methods of the current class, press Ctrl + O again to show the inherited methods.
F12     Focuses on the editor (especially helpful if you work with Fast Views).
Ctrl + M     Maximize Java editor
Ctrl + Shift + F     Format source code
Ctrl + Shift + O     Organize the imports; will import the missing import statements.
Ctrl + Q     Go to position the cursor at the last changed position in the editor.



**Arrow Key Shortcuts**

*Shortcut Description*

Ctrl + Left     Move one element to the left
Ctrl + Right     Move one element to the right
Ctrl + Alt + Up/Down     Copy line
Alt + Up / Down     Move line up / down
Alt + Shift Up / Down     Select the previous / next syntactical element
Ctrl + Up / Down     Scroll up / down a line in the editor



**Delete Shortcuts**

*Shortcut Description*

Ctrl + D     Deletes line
Ctrl + Shift + DEL     Delete until end of line
Ctrl + DEL     Delete next element
Ctrl + BACKSPACE     Delete previous element



**Coding Shortcuts**

*shortcut Description*

Shift + F2     Show the Javadoc for the selected type / class / method
Alt+Shift + N + Letter     Type shortcut for the command, e.g. njc to create a new Java class or npip to  create a new Plugin project
Alt + Shift + Z     Surround block with try and catch
Ctrl + 2, L     Assign statement to new local variable
Ctrl + 2, F     Assign statement to new field