Change Tabs
   Java | Code Style | formatter | Show
   Editors | Text Editors : fill in Displayed tab width

Change Font
  General | Appearance | Colors and Fonts | Basic | Text font

Deactive content Assist
   Windows | Preferences| Java | Editor | Content Assist
     uncheck auto;  activates.

Coloring
   Windows | Preferences | Java | Editor | Syntax Coloring | Java
     choose

Templates
  Windows | Preferences | Java | Editor | Templates
    choose, Edit ( to bring up)

;{}
  Windows | Preferences | Java | Editor | Typing
  check ; and {}