Have you ever wondered how you can move to the next / previous tab when coding in Eclipse? You might find it very helpful to know that you can do that by using Ctrl + PgUp / PgDn (in windows) for moving to the next or previous tab or by clicking Ctrl + E or Ctrl + F6 for a list of tabs to pop up, then you select which one to show using arrow keys.
More information:
Eclipse HotKey: how to switch between tabs?