Eclipse IDE Shortcuts

Ctrl+Shift+L : Gives a quick reference of Eclipse Hotkeys (at least in Galileo JEE)

Editing

Ctrl+Z : Undo (Eclipse can undo a lot (such as undelete files) and has a very long undo buffer for its text editors)

Ctrl+D : Deletes the selected line(s).

Alt+Up / Down arrow : Move current line/selection up or down

Alt+Shift+Up arrow : Previous method.

Alt+Shift+Down arrow : Next method.

Ctrl+ . : To go directly to the next warning or error in your current source file

Ctrl+H : Search & Replace

Ctrl+L : Go to line number

Ctrl+Shift+X : To upper case

Ctrl+Shift+ Y : To lower case

Ctrl+Shift+O : Organise imports (removes unused imports, adds missing imports, sorts imports)

Ctrl+Shift+M : Add Import, if showing error of um-imported package.

Ctrl+/ or Ctrl+7 : Comment-Uncomment selected lines

Ctrl+Shift+/ :  Apply multiple line comments on selected text

Alt+Shift+J : Add Javadoc comments

Ctrl+Shift+F : format code

Alt+Shift+R : Rename selected name

Ctrl+1 : Suggestions and quick fixes.

Alt+Shift+S, then R : Generate getters and setters.

Ctrl+I : Automatic indentation.

Alt+Shift+C : Change method signature

Alt+Shift+L : Extract to local variable

Alt+Shift+M : Extract to method

Alt+Shift+R : Rename

Ctrl+space : Autocomplete. Completes everything.

Class Name+Ctrl+ space : Adds default constructor

Type "syso"+Ctrl+Space : Creates System.out.println();

Ctrl+o : Typing once will only give you the current class's outline. Hitting it a second type will give you all the inherited stuff.

Ctrl+T : Type hierarchy (once will give you supertypes, twice should give you interfaces as well)

F4 : Shows the hierarchy.

Ctrl+F3 : Show class methods and variables, Hit this hot key twice to see inherited members and methods

Navigation

Ctrl+Shift+T : Find Java classes in your projects (Also finds Java classes that do not have their own files such as classes in jar files)

Ctrl+Shift+R : Find all resources in your projects (Jump to a file)

Alt+Left : Step backwards through editing history

Alt+Right : Step forwards through editing history

Ctrl+E : Open Editor and you can select any open file

Ctrl+F4 : Close one source window.

Ctrl+PgUp / PgDn : Changes focus to previous/next editor respectively.

Ctrl+Shift+F4 : Close all opened editors

Ctrl+Shift+F4 : Close all source windows

Ctrl+F6 : Switch editors (switch between opened files)

Ctrl+F7 : Switch Views

Ctrl+F8 : Switch perspectives

CTRL+M : Maximize Page

Ctrl+q : Go to last edited place.

Ctrl+ Click on class names : Jump to that class

F3 : Open definition - jumps to the definition of the class, method, variable, even if it is in remote places (such as classes in the JDK itself)

Ctrl+3 : Quick Access (provides access to almost any view, perspective, menu item, simply by typing it.)

Alt+Shift+Q : Shows all views to switch.

Alt+Shift+W : Shows currently opened views to switch.

Ctrl+Shift+E : Switch to each open editor.

Ctrl+E : Shows an editor selection mini window.

Execution

Ctrl+F11 : Run again

F11 : Run again in debug mode

Alt+Shift+D : Invokes debug as box

Alt+Shift+X : Invokes Run as