Eclipse: Most useful refactorings [closed]

Answer 1

My favourites (in order of using):

1. Rename (Alt-Shift-R, or Ctrl-1 for faster in-file renaming)
   Good renaming variables,methods,etc. without side effects.
2. Extract Variable (Ctrl-1, Alt-Shift-L)
   Good for splitting a quick-made-100-character-line to separate steps.
3. Extract Method (Alt-Shift-M)
   Create a method out of some code without any side effects.
4. Split Variable Declaration (Ctrl-1)
   Good when you initialize a variable at the declaration and now find out, that the initialisation needs to be in a try- or if-block.
5. Change Method Signature (Alt-Shift-C)
   The handy Swiss Army Knife of method signature manipulation, including default values for new parameters.
6. Pull Up/Push Down Pull methods and variables to a generic interface or superclass or push it down to a subclass
7. Extract Interface/Superclass
   Extract an interface or a superclass out of the current class. Very handy.