Difference between Ctrl+Shift+F and Ctrl+I in Eclipse

Question

I have been used Ctrl+Shift+F to correct indentation but I heard there is another shortcut to do that: Ctrl+I

Answer 1

If you press CTRL + I it will just format tabs/whitespaces in code and pressing CTRL + SHIFT + F format all code that is format tabs/whitespaces and also divide code lines in a way that it is visible without horizontal scroll.