IntelliJ IDEA suggests a handy way to switch between files opened in the editor, split editor tabs, and tool windows (docked or floating). This is similar to the application switchers in the various operating systems. The switcher consists of two columns: the left one displays the list of tool windows, while the right one displays the list of files currently opened in the editor.

../../Shared/switcher.png

To switch between open files and tool windows
  1. Press ⌃⇥⌃⇥⌃⇥^ Tab^ X, B.
  2. Keeping ^ pressed, use the following keys:
    • UpUp and DownDown arrow keys, TabTab or ⇧⇥⇧⇥⇧⇥⇧ Tab⇧ Tab to go up and down the list in both panes.
    • to toggle between the right and the left panes of the switcher pop-up window.
    • or BackspaceBackspace to close the editor tab where the selected file is opened, or hide a tool window, if it is shown.
  3. Having selected the desired file or tool window, release the ^ key. The corresponding file or tool window gets the focus and the switcher pop-up window disappears.

    If you want to close the switcher without selecting any file or tool window, just use the left or right arrow keys.